Chevy cruze 2012 spark plugs

1. Rough Idle. If your Chevy Cruze’s engine idles roughly or feels shaky when at a standstill, it could be a sign of worn-out spark plugs. As spark plugs deteriorate, they may struggle to create a consistent spark, resulting in uneven combustion. This can cause the engine to vibrate or run erratically when idling. 2.

30 Apr 2020 ... Most modern cars don't require a spark plug change until 100,000 mileage. All related (34).2012-2014 CHEVY CRUZE LS, Replace Spark Plug & Repair Coil Pack Tips - YouTube. Pro Tips Plus. 2.58K subscribers. Subscribed. 47. 7.1K views 11 months ago. …30 Apr 2020 ... Most modern cars don't require a spark plug change until 100,000 mileage. All related (34).Ma v e n. Yeah, the LE2 gets plugs by 60k. Yours actually don't look awful, there's two with notable ground electrode wear, and there's definitely some funk built up, either fuel deposits or oil burnoff. Most likely., but I've seen much worse in cars with only 70-80k. At least you still have the ground platinum pad.Remove the coil pack. If the boots are stuck on, use a small screwdriver or pick with some dielectric grease on it to go around the outside of the boot and then possibly the inside of the boot to help aid in removal. Remember to (p)re-gap your plugs to .028, (0.24 if tuned) Set gap with the black portion of this tool.

Over time your spark plugs can wear out and cause issues with the performance of your vehicle. If you're dealing with rough idling, stalling, engine misfiring, and trouble starting your vehicle, it's probably time for them to be replaced. It's recommended to change your spark plugs every 20-40,000 miles, or approximately every 30,000 miles.Over time your spark plugs begin to wear down, leading to issues with your vehicle's performance. That's why changing your spark plugs is recommended every 20-40,000 miles or about 30,000 miles. ... 2012 Chevrolet Cruze Spark Plug; Related Parts & Products. 2011 Chevrolet Cruze Oil Filter; 2011 Chevrolet Cruze Alternator; 2011 …Such as the best spark plugs for 2012 chevy cruze might not be a good fit for other models. This phenomenon can be compared to smartphones. Just like they get a model upgrade each year, cars go through the same process too. The reason is to reach the maximum level of customer satisfaction. So, with years passed, the same car gets major …Find the best replacement spark plugs for a 2012 Chevrolet Cruze at right price at AutoZone. We offer Same Day Pickup in our stores, or get Next Day Delivery on qualifying purchases.There are two parts to diagnosing bad spark plugs in your Cruze. The first is to identify the misfiring cylinder. The second is to inspect the plug. If it looks ok, follow the diagnostic steps listed below. If it doesn’t look ok, use the chart below to determine why the plug has gone bad.

UPDATE: For those that don't want to read through the 2348972347892 pages of this thread, we have found that the following plugs seem to work best in the 1.4-Liter engines: -BKR8EIX-2668 (iridium plugs), expect ~10-15k regaps on these, ~40-50k overall life. -BKR7E-4644 (nickel/copper plugs)... www.cruzetalk.com.CHEVROLET: 2013: CRUZE: 1.4L L4 Turbocharged: Ignition: Spark Plug: ... Spark Plug Gap Tool / Feeler Gauge. Spark Plug Hole Thread Chaser. Spark Plug Socket. ... Wiper Blade. Intentionally blank: Intentionally blank: Related Parts. CHEVROLET > 2013 > CRUZE > 1.4L L4 Turbocharged > Ignition > Spark Plug. Price: Pack: Total: Alternate: No parts ...Spark Plug / Ignition Coil Boot. ... CHEVROLET > 2012 > CRUZE > 1.8L L4 > Ignition > Spark Plug. Price: Alternate: No parts for vehicles in selected markets. Copper ...Buy Now!New Spark Plug Set from 1AAuto.com http://1aau.to/ia/ACETK00009This video shows you how to install new spark plugs on your 2011-2015 Chevy Cruze. Sp...

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28 posts · Joined 2014. #4 · Oct 26, 2014. hy TD CRUZE so i wanted to gap the sparkplugs and when removing the coils the was oil everywhere on the spark plug and on the coils. cant see any blue smoke or anything like that car runs fine. im running 94 octane all stock except all free mods ( intake resonater removal etc)Ma v e n. Yeah, the LE2 gets plugs by 60k. Yours actually don't look awful, there's two with notable ground electrode wear, and there's definitely some funk built up, either fuel deposits or oil burnoff. Most likely., but I've seen much worse in cars with only 70-80k. At least you still have the ground platinum pad.Loose Spark Plugs. I replaced my OEM iridium spark plugs at 65k miles back in June 2013 with more OEM NGK plugs. I gapped the new ones to 0.028", tightened them down, and thought I was done. Fast forward to last week, when I get a ticking noise at low RPM. It's all the gears, but between 900-1400 RPM when a slight load is placed onto …10587 posts · Joined 2013. #18 · Oct 9, 2014. E3 plugs are great out the box but foul up faster than the coppers gap can grow from .028 to .033 in a tuned Cruze. Most automotive reviews end like this. In the lawnmower they were great but in the lawnmower you are suppose to swap plugs often than the average Joe actually does.22 Jun 2017 ... Chevy Cruze Spark Plug Change. Easy To Support Flashback502: PayPal: https://www.paypal.me/Flashback502 Fan Mail, Products & Donations: ...

Chevy Cruze – (Steve Lagreca / Shutterstock) The most common signs of bad spark plugs in Chevy Cruze are poor acceleration or hesitation, rough idle, engine misfires, poor fuel economy, check engine light illuminates, engine knocking noise, and sometimes hard starting. In worst case scenario, if the spark plugs are in really bad condition ...phantomknight321. 153 posts · Joined 2013. #27 · Mar 5, 2013. Well ive had good results with my plugs gapped to .035, but i know in the end im going to end up re-gapping to .028 for tuning purposes. Its something thats worth a shot for any untuned cars though, im pleased with the results! Past: 2012 Cruze LT Auto.Some common problems with the Chevrolet Cruze include the transmission not shifting, the scent of anti-freeze in the car and premature clutch failure. The Chevrolet Cruze model yea...It needs air, fuel, and spark. When any of these three necessary elements is off, your Cruze’s engine will not perform as it should. The ignition system takes care of the spark part of the combustion equation. The spark plugs are the final stop in the ignition system’s process. An oily spark plug can cause the spark plug to not fire properly.JRB'sOilburningCruze. 246 posts · Joined 2015. #22 · Dec 19, 2016. Steel threads on the spark plug are stronger than the threads in the aluminum head. If the plugs were ever replaced and over torqued that can contribute to thread failure as well. My son's 99 monte carlo with the 3.1 just blew a spark plug out.Most Chevy small block and big block V-8 engines use the firing order 1-8-4-3-6-5-7-2. The LS family of V-8 engines has a 1-8-7-2-6-5-4-3 firing order, according to Reference.com. ...We stock these Spark Plugs brands for the Chevrolet Cruze: AC Delco, NGK, TRQ, DIY Solutions, Bosch, Champion, SKP and Autopart Premium. ... NGK Spark Plug - for 2012 Chevrolet Cruze 1.8L 4 Cyl. Part Number: 6418. Brand: NGK. Notes: Iridium IX Spark Plug …Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Spark Plug product you desperately need. We currently carry 24 Spark Plug products to choose from for your 2012 Chevrolet Cruze, and our inventory prices range from as little as $3.79 up to $23.99. On top of low prices, Advance Auto ...2016 Cruze Premier RS. obermd and XtremeRevolution. Patman. 5503 posts · Joined 2011. #9 · Jan 6, 2014. First off the AC Delco plug is a camouflaged NGK plug. Look right around where the washer is there is actually an NGK part number. The 41-117 is an old plug number superseded by the 41-121 or 41-120.2019 Chevrolet Cruze Spark Plug. Buy Online. Pick Up In-Store. Metal Type. Iridium (2) Iridium - Double (1) Brand. ACDelco (1) Bosch (1) NGK (1) Price. Set custom price range: to. $10 - $15 (2) $15 - $20 (1) ... Why Oil Is on Your Spark Plugs; Spring car care checklist; How to Clean a Spark Plug;Worn or damaged valve guides, worn or damaged piston rings, rich fuel mixture and a leaky head gasket can all be causes of spark plugs fouling. An improperly performing ignition sy...Equip cars, trucks & SUVs with 2012 Chevrolet Cruze Spark Plugs, Glow Plugs and Wire Sets from AutoZone. Get Yours Today! We have the best products at the right price.

UPDATE: For those that don't want to read through the 2348972347892 pages of this thread, we have found that the following plugs seem to work best in the 1.4-Liter engines: -BKR8EIX-2668 (iridium plugs), expect ~10-15k regaps on these, ~40-50k overall life. -BKR7E-4644 (nickel/copper plugs)... www.cruzetalk.com.

Four spark plugs at $8 each + 100% mark up = $64. The flat rate for the job probably says about 1 hour, at $150 an hour for the labor = $150. So 64+150= $214 then sales tax and tada $220. To add to JLL's comment, you could buy all the tools you need and the all the parts, do the job, then throw all the tools away and still save $100.Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration. Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form. One piece suppressor seal helps block radio frequencies that can affect vehicle electronics. Suppressor seal meters spark energy for long ...Mar 3, 2013 · phantomknight321. 153 posts · Joined 2013. #27 · Mar 5, 2013. Well ive had good results with my plugs gapped to .035, but i know in the end im going to end up re-gapping to .028 for tuning purposes. Its something thats worth a shot for any untuned cars though, im pleased with the results! Past: 2012 Cruze LT Auto. The average cost for a Chevrolet Cruze Spark Plug Replacement is between $129 and $147. Labor costs are estimated between $68 and $86 while parts are typically priced around $61. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed. Spark Plug Gap Tool / Feeler Gauge. Spark Plug Hole Thread Chaser. Spark Plug Socket. Spark Plug Wire. Spark Plug Wire / Boot Puller. ... Related Parts. CHEVROLET > 2012 …At AutoZone, we have the best selection of spark plugs for a 2018 Chevrolet Cruze, and we carry the top brands at the right price. Over time your spark plugs can wear out and cause issues with the performance of your vehicle. If you're dealing with rough idling, stalling, engine misfiring, and trouble starting your vehicle, it's probably time ...2012 Cruze LTZ w/ Nav & Cashmere Int. 700+ Mile Club Mods- Trifecta tuned, K&N Short Ram, ... 2013 Chevrolet Cruze ECO 6M. ... I replaced my spark plugs again at 125k with only 50k miles on them and they were much less worn then the ones in the picture above and considerly less worn then yours at 45k. Your spark plugs appear …The OEM plugs are AC Delco (rebranded NGK Iridium) 41-121. NGK Ruthenium plugs also work well in the 1.4T. Change them all. Spark plugs are relatively cheap, and a misfire destroying a catalytic converter is not cheap. 2016 Cruze Premier RS.

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No matter the situation, Advance Auto Parts has the Spark Plug product you desperately need. We currently carry 33 Spark Plug products to choose from for your 2013 Chevrolet Cruze, and our inventory prices range from as little as $3.49 up to $22.99. On top of low prices, Advance Auto Parts offers 5 different trusted brands of Spark Plug ...There are two parts to diagnosing bad spark plugs in your Cruze. The first is to identify the misfiring cylinder. The second is to inspect the plug. If it looks ok, follow the diagnostic steps listed below. If it doesn’t look ok, use the chart below to determine why the plug has gone bad.Besides the Iridium Spark Plug (Part Number: 41-122) it also lists (Part Number: 41-829) a Double Platinum Spark Plug. I would like to know if the double platinum spark plugs offers any important advantages besides durability? Or is it best to go with the recommended one 41-122?MSRP $15.80. $8.81. Add to Cart. Iridium Spark Plug. Part Number: 12681663. GM. Other Names: Spark Plug, 1275. Replaces: 12569190, 12598004, 12599232, 12625058, 25337472. Description: Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium composition...The difference between hot and cold spark plugs lies in their ceramic insulation. Learn how hot and cold plugs are different in ignition systems in this article. Advertisement Car ...2012 Cruze 1.4T Misfiring P0300. Hey guys i need some help. My cruze is misfiring accelerating and pretty much misfires around 2000rpm. I checked my spark plugs to look for any corrosion or any problems with them and moved them around. The plugs are gapped at .35, I for some reason couldnt gap them lower but if advised will replace them so i ...2012 Chevy Cruze Spark Plugs. Select Your Submodel. 1.4L. 1.6L. 1.7L. 1.8L. 2.0L. Sort by. 1 - 16 of 16 results. NGK® Laser Iridium™ Spark Plug. 0. # 4620598019. Chevy Cruze 2012, Laser Iridium™ Spark Plug by NGK®. OE Equivalent Design.10 Nov 2021 ... If you have a Chevy Cruze with an engine misfire problem, hesitation, slow start or rough idle - LOOK NO FURTHER! This video may very well ...Worn or damaged valve guides, worn or damaged piston rings, rich fuel mixture and a leaky head gasket can all be causes of spark plugs fouling. An improperly performing ignition sy... ….

10587 posts · Joined 2013. #18 · Oct 9, 2014. E3 plugs are great out the box but foul up faster than the coppers gap can grow from .028 to .033 in a tuned Cruze. Most automotive reviews end like this. In the lawnmower they were great but in the lawnmower you are suppose to swap plugs often than the average Joe actually does.jimmyc. 289 posts · Joined 2020. #9 · Mar 26, 2024. While at my dealer for an oil/oil filter and tire rotation, I figured at 100,000 miles I should have them change the spark plugs. They did. I noticed absolutely no change in performance or anything else. Guess the computer compensates for just about anything. Still going strong at 116,000 …Jan 14, 2021 · -BKR7E-4644 (nickel/copper plugs), ~$8, expect 15-25K out of these plugs, with a regap or two required at 5-8k intervals on stock tune. Read Hesitation Gone! for more info on the plugs. A good replacement coil is the MSD Blaster OEM Replacement Coilpack 8236 Don't forget to introduce yourself and your Cruze here. Steps to Change Spark Plugs. If you’re planning to change the spark plugs in your 2012 Chevy Cruze, here are the steps you can follow: Make sure the engine is cool before starting any work. Locate the spark plugs. In the 2012 Chevy Cruze, they are typically located on top of the engine, connected to the ignition coils. CHEVROLET: 2013: CRUZE: 1.4L L4 Turbocharged: Ignition: Spark Plug: ... Spark Plug Gap Tool / Feeler Gauge. Spark Plug Hole Thread Chaser. Spark Plug Socket. ... Wiper Blade. Intentionally blank: Intentionally blank: Related Parts. CHEVROLET > 2013 > CRUZE > 1.4L L4 Turbocharged > Ignition > Spark Plug. Price: Pack: Total: Alternate: No parts ...Here are the reviews of the Best Spark Plugs for Chevy Cruze 1.4 Turbo. It provides the best wear resistance and durability over Platinum and Conventional sp...Get the best deals on Spark Plugs for 2014 Chevrolet Cruze when you shop the largest online selection at eBay.com. Free shipping on many items | Browse ... 4 NGK V-Power Spark Plugs FIT Chevy Cruze & Volt 2011-2015/Sonic 2012-2015 L4. $21.24. Free shipping. 241 sold. 1x Ignition Coil & 4x Spark Plug for Buick Encore Chevy Cruze …10mm socket. 5/8 spark plug socket or deep well. T30AC Delco 41-121 gap .65mmHand tighten plus 3/8-5-8 of a turn. And or also torque to18 ft lbs, but no more!It needs air, fuel, and spark. When any of these three necessary elements is off, your Cruze’s engine will not perform as it should. The ignition system takes care of the spark part of the combustion equation. The spark plugs are the final stop in the ignition system’s process. An oily spark plug can cause the spark plug to not fire properly. Chevy cruze 2012 spark plugs, Labor - Replace The Chevrolet Cruze Spark Plugs Remove existing spark plug. Check and set gap on new spark plut. Install spark plug. 1.3 hours: $106.31: $119.81: Parts - Spark Plug New, Iridium/Platinum electrode tipped, ceramic insulated spark plug or equivalent. 90,000+ mile rating. 6 plugs: $70.42: $79.32: Disposal fees, UPDATE: For those that don't want to read through the 2348972347892 pages of this thread, we have found that the following plugs seem to work best in the 1.4-Liter engines: -BKR8EIX-2668 (iridium plugs), ~$25, expect ~10-15k regaps on these, ~40-50k overall life. -BKR7E-4644 (nickel/copper plugs), ~$8, expect 15-25K out of these …, UPDATE: For those that don't want to read through the 2348972347892 pages of this thread, we have found that the following plugs seem to work best in the 1.4-Liter engines: -BKR8EIX-2668 (iridium plugs), ~$25, expect ~10-15k regaps on these, ~40-50k overall life. -BKR7E-4644 (nickel/copper plugs), ~$8, expect 15-25K out of these …, You should replace spark plugs on a cold engine. Ensure you wait at least 30 minutes after any kind of operation before attempting to replace the spark plugs on your 2015 Chevrolet Cruze. Before beginning, remove the negative terminal of your battery. It’s a good idea to disconnect the battery anytime you work on the electrical system of your ..., 2016 Cruze Premier RS. obermd and XtremeRevolution. Patman. 5503 posts · Joined 2011. #9 · Jan 6, 2014. First off the AC Delco plug is a camouflaged NGK plug. Look right around where the washer is …, PatFF. 1 post · Joined 2021. #14 · Mar 20, 2021. I have a 2012 1.8 cruze and have had 2 seperate coil packs go due to oil in the plug wells from a leaking valve cover gasket, well now I have a gutted front cat due to the same issue. The valve cover gasket job is extremely easy on this engine and is well worth the prevention of further issues!, Amazon.com: 2012 Chevy Cruze Spark Plugs. 1-16 of over 1,000 results for "2012 chevy cruze spark plugs" Results. Check each product page for other buying options. Overall Pick. Autolite Iridium XP Automotive Replacement Spark Plugs, XP3923 (4 Pack) 2,016. 700+ bought in past month. $2613. List: $35.16. , Coolant in spark plug holes. I (my daughter) has the 2013 1.4 ltr turbo that has been overheating. She says that she shuts it off "right away" when the car does this. I think she is pretty good at that. It was about 1/3 gallon low on coolant. I filled it up and had her bring it to my garage., 1) Only change plugs on a cold engine. Give it 2 two hours to cool down. 2) Don't use anti-seize on the plugs. 3) When tightening the plug be gentle, the spec is 18 ft-lb. Tips 1,2, and 3 all relate to the cylinder head being aluminum. 4) If you use di-electric grease only put it on the ceramic of the plug. It is an electrical insulator., Excellent spark and flame. The cons. Fuel economy remains the same. 6. NGK Laser Iridium Spark Plug for Chevy Cruze 1.4 Turbo. The NGK Laser Iridium set of 4 spark plugs has been designed specifically for the GM 4-cylinder engine family. It is one of the leading spark plugs at the moment because of its properties., Spark Plug RET4WYPBX; Iridium; Gap: .026. 2 Year LIMITED WARRANTY. Seat: Tapered. Thread Size: M12. Heat Range: 4. Show More. Spark plugs are a critical component of the ignition system in your Chevy Cruze and create an electrical arc using power from the coil at the to make a spark to ignite the air-fuel mixture inside the …, phantomknight321. 153 posts · Joined 2013. #27 · Mar 5, 2013. Well ive had good results with my plugs gapped to .035, but i know in the end im going to end up re-gapping to .028 for tuning purposes. Its something thats worth a shot for any untuned cars though, im pleased with the results! Past: 2012 Cruze LT Auto., Part Number: 19459511. GM. Description: Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium composition... More Info. MSRP $15.80. $9.88. Add to Cart. Spark Plug. Part Number: 19313644., 4 Aug 2022 ... How to change spark plugs on a Chevy Volt / Chevy Cruze. 2.3K views · 1 year ago ...more. Abuzar Baloach. 2.25K., C. c6vette Discussion starter. 55 posts · Joined 2011. #1 · Feb 2, 2016. I have a 2011 Cruze Eco (1.4 Turbo) about every 3000 miles or so I find 1 or 2 loose spark plugs which result in a ticking sound in the engine . I torque the plugs to about 200 in lbs and the sound goes away, but 1 or 2 continue to loosen over time., Most Chevy small block and big block V-8 engines use the firing order 1-8-4-3-6-5-7-2. The LS family of V-8 engines has a 1-8-7-2-6-5-4-3 firing order, according to Reference.com. ..., NGK BKR8EIX Iridium - longer life than the BKR7E but not as long as the OEM plugs. These also have good low end power and should last somewhere between the BKR7E and OEM plugs. Gap any of the three to 0.028-0.030 and replace when the gap grows past 0.038 where you will start seeing spark blowout., If your Cruze is having these problems, inspect the condition of the ignition coils, coil boots, and spark plugs. If you need replacement ignition parts for ..., UPDATE: For those that don't want to read through the 2348972347892 pages of this thread, we have found that the following plugs seem to work best in the 1.4-Liter engines: -BKR8EIX-2668 (iridium plugs), ~$25, expect ~10-15k regaps on these, ~40-50k overall life. -BKR7E-4644 (nickel/copper plugs), ~$8, expect 15-25K out of these plugs, with a ..., 2015 Chevrolet Cruze Spark Plug At AutoZone, we have the best selection of spark plugs for a 2015 Chevrolet Cruze, and we carry the top brands at the right price. Over time your spark plugs can wear out and cause issues with the performance of your vehicle. , MSRP $15.80. $8.81. Add to Cart. Iridium Spark Plug. Part Number: 12681663. GM. Other Names: Spark Plug, 1275. Replaces: 12569190, 12598004, 12599232, 12625058, 25337472. Description: Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium composition..., Sep 16, 2019 · It needs air, fuel, and spark. When any of these three necessary elements is off, your Cruze’s engine will not perform as it should. The ignition system takes care of the spark part of the combustion equation. The spark plugs are the final stop in the ignition system’s process. An oily spark plug can cause the spark plug to not fire properly. , 1. 2. Last. Spark plugs are a critical component of the ignition system in your Chevy Cruze and create an electrical arc using power from the coil at the to make a spark to ignite the air-fuel mixture inside the combustion chamber. Good spark plugs burn fuel efficiently, and failing spark plugs can cause problems, including causing your engine ..., Mar 19, 2013 · sjmadden9239e Discussion starter. 9 posts · Joined 2013. #1 ·Mar 19, 2013. Hey quick question, I went to regap my plugs to .035 the other day. When taking the ignition coil off one of the boot plugs that provide spark broke off. Now accleration is really slow and jumpy at times. , MSRP $15.80. $8.81. Add to Cart. Iridium Spark Plug. Part Number: 12681663. GM. Other Names: Spark Plug, 1275. Replaces: 12569190, 12598004, 12599232, 12625058, 25337472. Description: Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium composition..., At AutoZone, we have the best selection of spark plugs for a 2017 Chevrolet Cruze, and we carry the top brands at the right price. Over time your spark plugs can wear out and cause issues with the performance of your vehicle. If you're dealing with rough idling, stalling, engine misfiring, and trouble starting your vehicle, it's probably time ..., I am thinking of getting these but the thread is over 5 years old. Has anyone else had a better experience with newer plugs? I'm not expecting new performance plugs to turn my little cruze into a sports car but I am not opposed of paying a little higher price for a better plug that would increase "performance" and last longer. Appreciate any help., Amazon.com: 2012 Chevy Cruze Spark Plugs. 1-16 of over 1,000 results for "2012 chevy cruze spark plugs" Results. Check each product page for other buying options. Overall Pick. Autolite Iridium XP Automotive Replacement Spark Plugs, XP3923 (4 Pack) 2,016. 700+ bought in past month. $2613. List: $35.16., Check out Canadian Tire’s selection of iridium and platinum spark plugs. Shop online and pick up at one of 500+ stores. ... 2016 2015 2014 2013 2012 2011 2010 2009 ... , CHEVROLET CRUZE SPARK PLUGS REPLACEMENT. CHEVROLET SONIC SPARK PLUGS 1.8In this video we will show you how to remove or replace the spark plugs …, The ultimate high ignitability spark plugs... $11.40. Bosch® Ignition Coil. 0. # 3666174784. Chevy Cruze 1.4L 2012, Ignition Coil by Bosch®. An ignition coil is located in a vehicle’s ignition system in order to convert a car battery’s low voltage to create an electric spark in the spark plugs and ignite the fuel., Valpo Cruze. 2001 posts · Joined 2014. #3 · Jun 1, 2023. Back on the 2012 the interval was 100K on the plugs so it likely IS the first time changing them. Aluminum block, steel spark plug so if there is any heat in the engine then yeah it will be bit tight but it WILL loosen. As suggested, try it on a cold engine., 10mm socket. 5/8 spark plug socket or deep well. T30AC Delco 41-121 gap .65mmHand tighten plus 3/8-5-8 of a turn. And or also torque to18 ft lbs, but no more!