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Old 05-17-2010, 12:48 PM   #1
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Hey guys. My 01 SE has 130k on it and lately I have been noticing that I feel a hesitation when I am accellerating slowly like driving up a hill. Sometimes when I'm sitting still I feel it ideling rough. The other day I was driving on a steep hill on the highway and when I punched it the service engine soon light started blinking then it went off when I cleared the hill. Today I was driving and the light started blinking again and it was running like crap again. I also noticed a hot rotten egg smell in the passenger compartment. Does this sound like I am due for a tune up? I'm worried the smell is a clogged converter. What do you guys think? If I do need a tune up, what all does it consist of? Is there a tech info write up on how to do it? Thanks in advance
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Old 05-17-2010, 12:50 PM   #2
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the rotten egg smell is usually the converter, the engine light flashing and the cars reaction as you described sounds like mine when my #4 injector went out. if the light is still on could you get us the codes that it is showing to better determine the issue? thanks
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Old 05-17-2010, 12:54 PM   #3
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I would check the plugs and wires, the flashing CEL is a warning of multiple misfires that can damage the cat.
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Old 05-17-2010, 01:29 PM   #4
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Change your plugs and wires and possibly the coils. You have a weak spark, that'* why you lack power and it'* running rough. The blinking SES light is a misfire, caused by bad spark. The rotten egg smell is unburnt gas getting in to the cat, this is caused by bad spark. Change out what I suggested and you should be fine. Also clean the MAF.
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Old 05-17-2010, 04:03 PM   #5
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what brand plugs wires and coils do you guys suggest? around how much will it cost?

Last edited by black_friday; 05-17-2010 at 04:05 PM. Reason: added to the question
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Old 05-17-2010, 04:19 PM   #6
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I use autolite copper. No need to spend big money on plugs. For wires, just OEM replacements are fine.
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Old 05-17-2010, 04:19 PM   #7
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Quote:
Originally Posted by black_friday View Post
what brand plugs wires and coils do you guys suggest? around how much will it cost?
Me and Tom have had great luck with Lifetime warranty plug wires from Bosch, and then you can run pretty much any plug, but an iridium plug would last the longest.
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Old 05-17-2010, 04:34 PM   #8
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are the back 3 plugs a pain to change like on other fwd v motors? what about the coil? what brand should I get?
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Old 05-17-2010, 04:38 PM   #9
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They can be a pain, not as much room back there as earlier models. But still better then on a Wbody car. Stock coils are fine. Again, no gain with after market coils. In fact, some arn't even as good as stock.
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Old 05-17-2010, 05:29 PM   #10
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Quote:
Originally Posted by Rockstar04 View Post
Me and Tom have had great luck with Lifetime warranty plug wires from Bosch, and then you can run pretty much any plug, but an iridium plug would last the longest.
I've heard that Bosch plugs don't run anywhere near as well on GM'* as other brands do. I've actually been told by several mechanics to stay away from them. A buddy of mine tried them, and 2 days later took them back to replace them with a different brand.
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