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#1
11-07-2005, 12:41 PM
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Spark Plugs
This has been covered before, but I thought it worthwhile to share my experience...
I bought this truck, and the previous owner said he had just replaced the plugs 10k ago, among other things (re oiling the K&N, etc). He said not to bother doing em as he had bought "the most expensive plugs", which turned out to be the bosch 4 prong plats. You would not believe the difficulties I was having with this truck. Poor gas mileage, hard starts, and finally no start. And why? Because I was running on MAX 5 cylinders, more likely 4. When I finally pulled the plugs (after replacing my spider and nut kit to no avail) I couldn't believe the condition they were in. All of the plugs were covered in black sooty crap, and two of them had major *chunks* of carbon between the electrode and the prongs. These chunks had the thickness of a CD and were as wide around as a pea. So when people here recommend you use nothing but AC delco rapid fires or plats, listen. Now that I have the rapid fires in my truck its running great. 
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#4
11-07-2005, 04:00 PM
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Not that I would run anything but Ac Delco plugs but what is with the Bosch plugs running like shit in our engines? I used Bosch plugs on a jeep Cherokee I owned with just under 200,000 miles on it and thing purred like a kitten and was still powerful. I really liked that vehicles except for the god awful colors of the plaid interior!
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2002 Pontiac Gram Am K&N Air Filter Mobil1 5W-30 Extended 15K 2 JL Audio 12" Subs Sealed JL Audio Box Coustic 400 Watt Class D Mono Amp Pioneer Head Unit 50X4 MP3, WMA, AAC Super Tuner Polk DB750 6.5" all around Yankees Suck!!!!!!!!
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#5
11-07-2005, 05:06 PM
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Re: Spark Plugs
The jist of what I've gotten from other discussions is that we drive "expertly and finely tuned machines" that run like crap when you stick a plug in that's gapped differently / runs at a different temp than OEM.
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#6
11-07-2005, 09:28 PM
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Re: Spark Plugs
This is yet another story to be filed in the Bosch Garbage can...
__________________
1998 BLAZER LS Vin-W 4Dr 2wd 2004 Cavalier LS 4Dr 2.2 Ecotec "Good Part's ain't Cheap--Cheap Parts ain't Good" 
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