Jake brake not working on high

Joined: Jan 2018. RE: ISX 870 jake brake issue. Those percentages show that the ECM is recognizing the 3 different stages you command. Your problem is probably gonna be in the engine (possible solenoid or rocker), jake wiring harness, turbo, or the turbo plumbing and actuator system. What boost pressure readings are you getting under a full ...

My 4cyl jakes act like they don't turn off when you hit the accelerator, clutch or even turn the switch off. They sound like they keep running for a few seconds after they should have cut off completely. 2cyl jakes work fine. Need to find a solution quick as this is my main rig. Thanks.With EngineOFF you can test these 2 solenoids to hear if they "click" on by applying 12V to either wire. One wire controls front 3 cylinders retarding, other controls rear 3 cylinders. Low Jake engages the same 3 cylinders, Hi Jake engages all 6. What the above does not explain is how to get 2 stages.If the Jake brake on your 2004 Freightliner Columbia 120 with a Detroit Series 60 14L DDEC V engine is not working, there could be several possible reasons for this issue. Here are some common troubleshooting steps you can take:Check the Jake brake switch: Make sure that the Jake brake switch is functioning properly.engine brake and cruise not working on 06 w900 cummins isx 475 replaced clutch switch and speed sensor , showing open circuit on clutch switch, ck pins at ecm to clutch switch its good any thoughts. thanks why me, May 22, 2011. why me, May 22, 2011 #1. Trucking Jobs in 30 seconds.Sep 15, 2021 · My 4cyl jakes act like they don't turn off when you hit the accelerator, clutch or even turn the switch off. They sound like they keep running for a few seconds after they should have cut off completely. 2cyl jakes work fine. Need to find a solution quick as this is my main rig. Thanks. Supplying a ground enables the Jake brake for Cylinders 3, 4, 5, and 6. Low Jake request (pin K3) Supplying a ground enables the Jake brake for Cylinders 1 and 2. Park Brake (pin H2 on the ECM) Has no effect on Jake functions. Service Brake (pin G2 on the ECM) Has no effect unless Jakes are programmed to only come on with service brake. ThrottleCummins. Position 1 = release throttle and engine braking begins. Position 2 ("AUTO") = engine braking begins with either, a) depress brake pedal or b) speed increases resulting from downhill grade, then engine braking modulates to hold existing speed. AUTO is real nice because I find you need a lot of wheel brake in this vehicle under normal ...

Sep 21, 2018 · Open brake circuit probably means there’s a bad switch somewhere check safety switches on brake and clutch pedals. I’m not Mechanic but have fixed this issue in past on my Fld Rideandrepair , Sep 28, 2018 Jake brake uses engine compression for braking. So if not in gear it does nothing (except maybe kill the engine) and how effective it is depends upon which gear you are in. So in neutral it does nothing. So if you've accidentally engaged Georgia Overdrive on a steep decline, better hope for a runout lane :)The Jake brake doesn't seem to work under 1800-2000 RPMs then will kick in and be very strong but will kick in and out every 2 seconds, like someone is turning the switch off and on. It does this very consistently. I'm thinking it's got to be an electrical issue, clutch switch is good, not sure how to check the fuel switch on this one.Open brake circuit probably means there’s a bad switch somewhere check safety switches on brake and clutch pedals. I’m not Mechanic but have fixed this issue in past on my Fld Rideandrepair , Sep 28, 2018Re: Jake brake in ATS. #2 by Max » 18 Nov 2022 00:33. every engine in game has engine brake. only the newer or europe-based engines might have bit different setting. if you take transmission without retarder it wont affect the engine brake functionality in any way. control style is also independent on both engine and transmission.

BrooksAD Discussion starter. 11 posts · Joined 2018. #18 · Dec 16, 2018. 2008 6.7 - engine brake doesn't activate - still researching. Well, I guess I need to be a bit more consistent in this thread so I can get my my issues resolved! ;^) Good to read other things that are getting resolved in here, anyway.Location: Beaver Dam, AZ- Port Angeles, WA. Posts: 57. Jake brake, Speedometer, And Cruise Control don't work. I'm having a problem with they all work or they all don't. Can understand the cruise and speedometer, but what's the jake got in common. Lately there working less than working.check plug at ecm, jake control is on the big plug at back( facing firewall) the wires to the jake are the first ones below the notch. You can press on them with a awl or dental pick, make sure screw holding plug is tight. With a abs code you may have wires rubbing together, sometimes it's easier to replace the harness than spending hours ...The Jake Brake is most effective at high RPM, the only thing that running down to idle speed on the jakes does is make noise, the jakes have very little retarding effect at low engine speed. ... i have a 94 freightliner with the 3406 cat that the jake isnt working. It appears we are not getting an output from the ecm to energize the jake relay.Section 1.36Jake Brake. The engine brake has been designed to fit on the Series 60 engine with no additional valve cover spacers. There are three styles of valve covers for the Series 60 engine. On engines equipped with a two-piece aluminum valve cover, it is NOT necessary to remove the lower valve cover to install the engine brake.

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A Jake Brake is a separate component installed on diesel engines. When engaged, it releases compressed air, using kinetic energy to slow the vehicle. This is why truck drivers also refer to it as the "compression release brake". Basically, it puts resistance or drag on the crankshaft, and therefore on the tires, to slow the vehicle down.A lot also depends on how much braking you can get out of your engine. If you have a newer freightliner with auto, I recommend avoiding stage 3 altogether on wintry roads. The downshifting and braking compression is too aggressive in stage 3, especially with the bigger engines. 7. saabbasil.Hi, I have a 2000 37' Tradewinds. We took it out over the weekend and found that the Jake brake is not working. The RV is new to me and have not gotten completely familiar with it. Until now the jake brake worked great. It didn't this weekend. I would think the 1st thing to check is the fuse ( assuming there is a fuse).pipelayerjdh. 5900 posts · Joined 2006. #2 · Dec 18, 2006. First, you can't get a Jacobs brake for the powerstroke. A jake brake mounts on top of the engine head and actuates the valves directly. This is what gives them that awsome sound. You have a few exhaust brakes to choose from, but they don't sound like a jake.Jake brakes wont work. 2003 pete 379 c15. Cat told me to unplug the two wire connector to the micro switch and use a - Answered by a verified Technician. ... On our 2003 k104 with a cat c15 6nz, we have low engine brake, no medium and low on high. We have swapped engine brake controllers with another truck and this has not fixed it.Jake brakes have been working fine and they were working tonight when I came off of Monteagle Mountain but now they will not come on and work on any one of the 3 stages. Everything else on my Smart Wheel is working fine. I have cut the truck on and off made sure the clutch and brake switch was working correctly.

Troubleshoot each of those codes individually. Most commonly find a problem with the clutch or brake switch. Check for continuity and resistance through the clutch switch and the brake switch in both the open and closed positions. Thoroughly inspect the wiring in the connector pins for any corrosion or damage as well.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...If it is weak, then the jake will be weak. Check the overhead cams for excess wear, and check the oil pressure is 34+ for the engine going down the road. Next would be the wear in the rocker bearings. if there is excess wear in the rocker bearings, or the rocker shaft (s) then it will significantly lower oil pressure to the upper part of the head.Jake brake issues? Check this first. 76K views 3 years ago. ...more. 26.5K subscribers. Hey Truckers! D13 2013, with 900,000 miles and the customer brought the truck in because the …5. Measure the resistance across the Jake Brake solenoid. [a] If the resistance is greater than 15 Ω, replace the Jake Brake solenoid. Refer to section 82.2.1.1. [b] If the resistance is less than 15 Ω, repair the open between pins 7 and 8 of the front injector valve cover harness connector and the Jake Brake solenoid. Refer to section 82.2.1.1.A Jake brake is an engine brake to slow the truck down on downgrades. The intent is to keep from using the foot brake and getting the brakes hot. Properly used and in the correct gear, you can desend a 6 % downgrade without touching the foot brake. Drivers that use a Jake on level ground are just trying to show off.In on, the cruise would not work but the Jake brake would engage anytime you let off of the throttle, regardless of if you had actuated the service brake. ... just High/Low switch). With cruise working and I step on the Jake peddle the cruise disengages but does not turn it off. When done braking all I do is hit the resume on the Smart Wheel ...hello everyone,recently bought a 2007 sterling with Mercedes OM460 La on it,Truck runs very good,strong,but when I apply the jake brake, trucks automatic loses power,sounds strange and notice smoke come from somewhere under the hood too,very frustrated because truck seems very nice until this happens,anyone can guess what's going on with the engine brakes?Jake suggests the brake be rebuilt at 150,000 miles. The overhaul kit p# 4559-31180 updates the Jake to current revision level and includes reset screws, springs, control valves, most of the snap rings, and solenoid o-rings. The exhaust valve yoke adjusting screws need to be checked for wear.

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Cruise control and Jake Brake: CoreyinWP: Entegra Owner's Forum: 14: 07-31-2014 09:50 AM: 2004 Monaco Signature Jake Brake and Cruise Control Failure: OldeDoggie: Monaco Owner's Forum: 46: 02-18-2014 10:26 PM: Cruise Control and Jake Brake: Tom&Marie: Monaco Owner's Forum: 10: 10-20-2012 06:40 AM: Jake brake activation while in cruise control ...Jan 13, 2020. #1. I have a 2006 Kenworth t800 Heavy Wrecker with a c15 CAT we just picked up and the jakes are not working at all. When you flip the switch the retarder light comes on and the switch has power but the jakes do not work at all on any stage. Pulled the valve cover and inspected the harness and no chafes or broken/unattached wires.Posted 7/1/2016 09:27 (#5385186) Subject: Cat C15 jake brake question. Garrett County, MD. So this might be a long post but if you know about jakes on cat engines I could really use your help. One of our trucks is an International 9400 2002 model I believe. Has a cat c15 6NZ in it. When we bought it a few years ago the previous owner had it ...Posted January 20, 2013. Happy Sunday to all, I am still working on this Mack E7 (ETECH) 350 HP with Jake Brakes. The cylinder head has been replaced, the valves have been adjusted as well as the Jakes, however my current issue is the Jakes. When driving down the road and the Jakes are applied, there is a delay (long) or sometimes the Jakes don ...On a 6% grade or more, low,isn't going to do much, use high. The ISC engine never offered an engine brake, not available, only an exhaust brake. The ISL only offered an engine brake. Exhaust brake is simply a restriction on the exhaust while the engine brake is a timing change on the valve train.The most common cause of smoking brakes in a car is friction. The friction can come about because the parking brake is left on, the brakes are working especially hard or because th...Thanks for asking your question. I will try and help you out. If it's only hitting on one. That's the jakes on 3 and 4. Medium is cylinders 1-2 and 5-6. If they work manually. I would suspect either a wiring problem or switch problem.Please reply back if you need more help. I am happy to assist.

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When you flip the switch the retarder light comes on and the switch has power but the jakes do not work at all on any stage. Pulled the valve cover and …Jake brake is not working Freightliner's Jake Brake ... Hi there my are not working on my C 15 2003 Freightliner Columbia. Hi there my are not working on my C 15 2003 Freightliner Columbia they only work when I speeded up and then turn off the key in the Jake's come on I change the foot pedal sensor and the clutch sensor ...Dionicio0911 Bobtail Member. I just bought a KW with t680 mx 13 in it. So far no problems except when using the jake it feels like it sputters like its missing as it slows down. I did overhead adjustmrnt and looked at all solenoids they looked ok (I did not take them out). I guess its not a big deal but it just seemes odd.On 1/22/2019 at 6:12 PM, Mackpro said: A malfunctioning clutch pedal switch can take out the cruise and engine brake . If the VECU thinks the clutch pedal is depressed, cruise and engine brake won't work. But the lights for both switches go out when this happens as well. When you press the clutch the lights on the don't go out when they are ...Posted June 9, 2010. The engine brake solenoids are located under the valve covers. They sometimes quit working properly. Did this just crop up or have they been acting erratically since new? There is an update kit available through Mack Partswhich corrects some weak brake and other problems associated with your model Jake Brake.Also you can't speed shift with one on not like jake brake where you can hold the throttle so it does not engage. Just my experence. ... Now there are those who have an exhaust brake and claim that they dont work or only work at high rpm's :crying:crying They aren't that complicated to understand and fix. When they work, they work well.:duh . 0.Joined: Jan 2018. RE: ISX 870 jake brake issue. Those percentages show that the ECM is recognizing the 3 different stages you command. Your problem is probably gonna be in the engine (possible solenoid or rocker), jake wiring harness, turbo, or the turbo plumbing and actuator system. What boost pressure readings are you getting under a full ...check plug at ecm, jake control is on the big plug at back( facing firewall) the wires to the jake are the first ones below the notch. You can press on them with a awl or dental pick, make sure screw holding plug is tight. With a abs code you may have wires rubbing together, sometimes it's easier to replace the harness than spending hours ...Engine braking works by using the vacuum created by the driver releasing the accelerator pedal to restrict airflow from the engine's cylinders. This decreases the engine's energy output, causing resistance in the engine and braking force. The benefits of engine braking include reduced brake wear, better vehicle control, and improved fuel ...You're refering to an exhaust brake (NOT a Jake Brake) which simply closes a valve in the exhaust (after exiting the engine) to increase backpressure which works against the pistons (on the exhaust stroke) to (theoretically) slow the vehicle. 1. You'll never be able to hold it closed by hand (at least not tight enough to make a difference) 2. They don't do much anyway, especially when used for ...14liter Detroit Freightliner Columbia 2006. Check engine lights coming on and accelerator pedal no longer works. Also while driving it will speed up. Max Diesel Tech. Electrical theory. 27 satisfied customers. Jake brake is …Feb 17, 2012. S.E. WY. 0. Two questions about engine brakes here.. The first, on a 2004 Freightliner Columbia with Detroit series 60, 10 spd Eaton Fuller, the engine brakes work in 10th, 9th, 8th, and sometimes 7th (if you don't press the accelerator too much when getting the rpm's up) -- they don't work at all from 6th on down. The second ... ….

Trouble Shooting Guide for Jacobs Brake. Support Topic. Get Support. 1. Previous Tutorial shifting a 5 and 4. Next Tutorial Replacing the B-Model Headlight Switch. Trouble Shooting Guide for Jacobs Brake.working on a cummins isx15 engine serial number 79779054 jake brakes are not working not getting power to the solenoids ohm on solenoids are 10 ohms need wire diagram from ecm to to the injector/jakes ... I need to know if I can change a ntc444 cummins engine from a low flow radiator to a high flow radiator, and what parts are involved. ...Jake brake toggle is just that, a toggle. Jake brake command is a hold to engage, release to disengage. That is the one that makes the most sense for a physical button on the shifter. My recommendation: use the switch on the shift knob assigned to the jake brake command and leave the other associated commands unbound. 1.Message format. Flat Threaded Nested. Putz. Posted 2/20/2013 21:38 (#2914007) Subject: Jake Brake ? on Detroit 12.7. NW ND. I've got a 2002 Freightliner with 12.7 Detroit. Last fall I noticed that sometimes the Jake would not engage when I flipped the switch. Now it hasn't worked at all for the last few days.On a 6% grade or more, low,isn't going to do much, use high. The ISC engine never offered an engine brake, not available, only an exhaust brake. The ISL only offered an engine brake. Exhaust brake is simply a restriction on the exhaust while the engine brake is a timing change on the valve train.an engine brake. You could not descend that same hill at 50 mph and still expect to remain under control. Get to know how much slowing power your engine brake can provide. Never exceed a safe control speed. With the Jacobs Engine Brake™ set to the "High" position, you might be able to descend that same grade at 25 mph, and still47 posts · Joined 2020. #1 · Nov 14, 2023. I'd like some info on the use of the engine brake on my 2022 Ram. First I'm towing a 14k 5th wheel trailer. I'm very unsure of the engine brake system. When I'm rolling off a steep downgrade, I put the trans into 2 or 3 gear and sometimes the engine brake comes on but most of the time it doesn't.Adding "real" Jake brake to an ISC. Does anyone have any experience adding a Jake Brake (engine compression brake, NOT exhaust brake) to an ISC engine? I see the parts required can be bought (used) at a reasonable price at a number of salvage operations. The changeover looks fairly straightforward, with the Jake Brake components essentially ... Jake brake not working on high, I have a truck that's a peterbilt 379 with a cat c15 and Jake brakes are not working on it when I turn the switch on nothing happens when I supply direct power my jake brakes work it ... inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent. Tory Johnson, GMA Workplace Contributor, discusses work-from-home ..., This is one of the biggest myths in trucking. The answer is NO. Using an engine brake has zero impact on the life of your truck. The jakes are simply releasing compression in the engine as a way to reduce the energy being sent to the crankshaft. There is nothing in this process that is harming the engine., Trouble Shooting Guide for Jacobs Brake. Support Topic. Get Support. 1. Previous Tutorial shifting a 5 and 4. Next Tutorial Replacing the B-Model Headlight Switch. Trouble Shooting Guide for Jacobs Brake., When you flip the switch the retarder light comes on and the switch has power but the jakes do not work at all on any stage. Pulled the valve cover and …, They don't work anymore, but they used to work on and off. Any... Log in or Sign up. Forums. Forums. Quick Links. ... Problem using the jake brake and cruise control Peterbilt 386 Discussion in 'Peterbilt Forum' started by Ksv, Dec 1, 2017. ... 1977 Pete 359 Brake light stuck on MikeB503 posted Mar 13, 2024. Why Do Some 379s Have 6 Digit..., Feb 17, 2012. S.E. WY. 0. Two questions about engine brakes here.. The first, on a 2004 Freightliner Columbia with Detroit series 60, 10 spd Eaton Fuller, the engine brakes work in 10th, 9th, 8th, and sometimes 7th (if you don't press the accelerator too much when getting the rpm's up) -- they don't work at all from 6th on down. The second ..., My 6v92 has a 2 stage Jake Brake that doesn't work; however. when I start the coach cold, one side of the Jake Brake is on. After it runs 40 seconds to 1 minute (depending on how cold it is), Jake goes off and engine runs fine. The only test I have done is to remove 1 wire from the buffer switch to see if that made any difference. It didn't., First and foremost – make sure your brakes are working! Test the Jake Brake at the beginning of each trip. Also, the Jake Brake works best on dry roads, in normal weather conditions. It can be used in combination with the foot brake. However, make sure that when you use the Jake Brake, the engine is not cold. It should be …, I have a 2006 volvo with Cummins isx. My 6 stage engine brake is weak. Wont holf me even on high while am empty. I thought a valve adjustment would fix the problem but it didn't. Did overhead adjustment yesterday. No change. It only has 2 jake brake selonoids which we didn't test. Any insight? Thanks, Mar 9, 2007 ... I had the same problem and it was the clutch switch. The peddle was staying down just a smidge off of the top and that was enough to make it not ..., I have a 06 century Detroit series 60 jake brake stopped wrking an now I’m seeingfault code for brake open but cnt seem to find any info on what that code means so I figure gotta be with jake brake any ideas on where to start ... Cruise control is also tied in but I assume it’s working so probably not the problem Rideandrepair, Sep 28, 2018 ..., As to your thrid part the Higher the engine spins the more Braking force it Generates. Max Braking energy is around 1800 RPM so coming down a mountain with the Jake on you want to be in a gear at that rpm were you not riding the Service brakes and your letting the engine brake do the work for you., 3406e Caterpillar engine rear Jake brake does not change when activated manually. Front Jake brake operates normally. middle Jake brake pops/sounds whimpy. Any advice would be welcomed. Newguy333, Mar 5, 2018. #1. Trucking Jobs in 30 seconds. Every month 400 people find a job with the help of TruckersReport. Zip., working on a cummins isx15 engine serial number 79779054 jake brakes are not working not getting power to the solenoids ohm on solenoids are 10 ohms need wire diagram from ecm to to the ... inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent. Tory Johnson, GMA Workplace Contributor, discusses work-from ..., I only want genuine "Jacobs" engine brake, not a "Pac" brake. Sound's like something you find on a motor home as a buttery fly valve 'exhaust' brake. allisonisatranny , Sep 10, 2016, Posted 3/18/2017 01:39 (#5906636) Subject: N14 Jake Problem troubleshooting please. Northern CA. In our 1994 International with an N14, it seems like one set of Jake brakes doesn't always shut off or comes off and on while going down the road. It seems a little worse cold vs warm. Someone suggested something about an oil pressure problem, but ..., Trouble Shooting Guide for Jacobs Brake. Support Topic. Get Support. 1. Previous Tutorial shifting a 5 and 4. Next Tutorial Replacing the B-Model Headlight Switch. Trouble Shooting Guide for Jacobs Brake., Snow and ice provide very little to zero traction. It takes very careful driving in these conditions. When you apply the jakes it slows the tractor only and the trailer is traveling faster than the tractor. The trailer is pushing the tractor and will cause you to jack knife. I was curious about using it in snow or ice., Toggle the switch between high and low. There is a distinct difference in the exhaust sound between high and low. From past experiance i know that if the gas pedal is not showing 0 input the jake brake will not operate. Found a worn bracket one time on an older rv we used to own., The Jacobs Engine Brake (also known as the "Jake Brake") is a diesel engine retarder that uses the vehicle's engine to help slow and regulate it. When the engine brake is engaged, the exhaust valves of the engine are altered, allowing the engine to function as a power-absorbing air compressor. This slows or retards the car's drive ..., True Jake Brake/ engine brake is built internally in your engine. It can get lengthy moving on. A Pac brake or exhaust brake is mounted after you turbo. it is sandwish between your turbo and your exhaust pipe flange. There is a shock like cylinder that opens a value when your ECM or PCM request it by compressed air., A Jacob's brake, jake brake, compressions release brake, whatever you want to call it, is actually fairly simple in how it works. To put it really simply, it..., Cruise Control Inhibited. The powertrain control module (PCM) inhibits the cruise control operation when any of the following conditions exist: * A cruise control related DTC has been set. * The vehicle speed is less than 40.2 km/h (25 mph) . * The vehicle is in PARK, REVERSE, NEUTRAL, or 1st gear., What you think is the brake going through stages at slow speed, is actually the transmission shifting down. A lower gear will drastically increase the braking power from the Jake. If the Jake still does not work right, take it to Oregon Motor Coach or Country Coach. Most likely it is in the Country Coach wiring rather than in the engine ECM., Jake brakes have been working fine and they were working tonight when I came off of Monteagle Mountain but now they will not come on and work on any one of the 3 stages. Everything else on my Smart Wheel is working fine. I have cut the truck on and off made sure the clutch and brake switch was working correctly., No there is not. An exhaust brake is the only option. As far as I know Cummins never put Jakes on anything smaller than a 855 C.I. engine. 2014/93 W350 DRW, fuel pin turned, 6X.018" injectors, 4" exhaust, 3" air intake horn, Super HX40/16, G56 SBC Con-OFE, 3:07's axles, 2" skyjacker lift, air ride rear suspension,B&W flatbed., Dec 31, 2010 · Just had ECM replaced and now Engine Brake (Jake) does not work. New ECM was programed to show unit has engine brake. Has anyone encountered this situation and most importantly what is the fix. Cummins in Irvine could not get it to work.....suggested going to repair facility that is familiar with Monaco chassis and wiring. , 0. Mar 9, 2010. 0. Hi there my husband is a diesel mechanic and he is having troubles so I came here for help. He is trying to fix the jake brake and its not working on a 2000 peterbilt c15 cat. He has a new clutch switch , wire harness is good, new jake brake solenoid, new male plug on head harness, checked wires with ohms meter and was good ..., Nov 2, 2016 · The multimeter model I use to troubleshoot listed on the Amazon Affiliate Link listed right here: https://www.amazon.com/gp/product/B0002YFD1K/ref=as_li_tl?... , The Jacobs' Engine Brake, or Jake Brake, is an essential component in slowing and controlling your vehicle. By using the superior retarding capabilities of ..., 4276 posts · Joined 2007. #7 · Jul 4, 2011. No, a Jacobs brake (compression brake) only opens one exhaust valve. If you look in the pic, the red circle shows the valve that releases compression when the brake is activated. AThe one in blue is the other exhaust valve and is only used during normal operation., 4,204. 6,019. Aug 26, 2014. 0. It's not self correcting. Pull the three wires off the jake housing's and connect a hot wire to them one at a time to isolate which valve cover to take off. Watch oil flow change from top of slave piston housing, when wire is removed or hand is taken off center of solenoid. , the high and low switch produces the same amount of braking. The trans downshifts to 4th then stop downshifting. That cause me to use the brakes to slow the coach. This is my first coach with a jake. previuos coaches were Cat engines with exhaust brakes. I think they should act similar.??