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| Engine Mods Talk about Engine Modifications here |
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AC Delco OE Plugs are good for 100k miles. So it won't hurt to put them back in...they are around $7 per plug at Advance Auto Parts....it ain't too bad. I wouldn't put nothing less than a double platinum if you don't want to use the AC Delco plugs. Cuz our plugs are the iridium plugs so they should last awhile. Autolite makes an Iridium plug and they run $6.59 per plug. Just remember don't forget to use Anti-seize and Dielectric grease.
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Last edited by cobalt07ls; 11-04-2008 at 07:19 AM. |
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i checked my stock plugs at 35k and they looked good to go. when i do replace them i will get the OEM ones since i am stock
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O6 Cobalt LS 2.2 Laser Blue Looking for new tires 20% tint Pioneer Premier HU Memphis 6x9's and 6.5's iPod Interface Adapter color matched bowties front and rear 4300k HIDs |
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i was no where even near the mileage to replace my plugs but i did anyway. i switched them to NGK Iridium
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![]() 06 Cobalt LS-Black, Custom Blue Powder Coated DC Strut Bar & Valve Cover, NGK Iridium Spark Plugs, K&N Short Ram Typhoon Intake, Z Spec LightWeight Crank Pulley, 2.4 Intake Manifold Kit, GM Extruded Honed Exhaust Manifold, B&M Shift Plus, Eibach Sportlines, Custom 2.5" Magnaflow Exhaust From The Manifold Back, Exterior Undergoing Overhaul |
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I cannot stress enough... Stay away from BOSCH PLATINUMS! I've heard many others complain about their engine running real rough from them. I didn't know this until it was after wasting my money I got to experience it for myself.
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2006 Chevrolet Cobalt LT 2.2L MPI DOHC my balt gots alot of baggage, but for some reason I still love her. So far I've had 15 Tickets, 4 Warnings / 3 years of driving. |
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I replaced my oe plugs at about 20k and i used the bosch platinum +4's i've never had a problem with them at all. but i also put in the cai about a month after i bought the car then i did the exhaust at about the same time as the plugs
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Mods:Exterior 5% tinted all around w/ eyebrow, SS/SC hi rise spoiler, SS/SC front bumper, BSA 17" wheels black w/ machined lip, negotiator rubber, painted calipers and drums black. Engine AEM CAI, Bosch platinum +4 plugs, custom 2 1/4" catback w/ raceland muffler. Interior TSW short throw shifter, JDM 4-pt harnesses, CA harness bar, R-1 sport pedal, 10'' solo-baric L7 Soon to come: custom creation hood, lowering springs, hahn port fueller manifold, seats. |
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Thanks guys for the postive feed back. The dude at Checker auto parts told me that OE plugs on my car should be dble plat. They recommended autolights. I have not yet intalled them. I want to hit 50,000 miles (which is in about 900 miles) How easy changing the plugs on a ecotec? I know that the dude gave me plug grease...let me know guys are gals!!
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dantastic-always in the lead, sending import lovers back to there mommy! 2005 Chevy Cobalt Sedan Victory Red. AEM Cold Air Intake, 15% tint, Chrome Projectors w/halo's. decals! Cars I have owned and are in the bone yard: 1976 Chrysler Cordoba $1,100 1984 Honda Accord $100.00 1986 Chevy Spectrum $200.00 1989 Chevy Beretta $250.00 2004 Chevy Aveo $10,000 (traded in) |
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If you are stock use the recommended AC Delco plugs. They last up to 100K miles. Bosch sucks, Autolites..eh, wouldn't recommend unless you are on a budget.
Replacing the plugs are rather easy if you take your time. The COP (Coil Over Plug) comes off. If the boot is sticky on the plug DON'T GO PULLING THE CRAP OUT OF IT. Take your time and twist it, it will pop loose. Once the plugs are ready to be pulled, they should come out rather easy. (word of advice) .. these are aluminum heads!!! DO NOT START PULLING THE PLUGS WITH THE ENGINE HOT - YOU CAN DAMAGE THE THREADS AS THEY EXPAND WHEN HOT. Pull the plugs on a rather cool engine. Take the new plugs, check every plug gap, reinstall the plugs. Use Dielectric grease between the boot and the plug. DO NOT OVER TORQUE THE PLUGS!!!!!!!!!!!!!!!!!!! Put the COP back on and you should be ready to go.
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07' Chevy Cobalt SS - GMPP Intake - Jet Performance Module 'Stage 1', 'Stage 2' SOON!!!! ![]() MYSPACE ![]()
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Don't get E3 Diamondfire plugs. Ever since I bought them($9.00 per plug), the same engine code goes off every now and then(Engine Misfire-Multiple Cylinders). Waste of moola, better suited for v-8's
Plus, since it's only a 4-cyl., you don't get improved MPG or HP, or at least not recordable improvements. |