idle ?
#1
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idle ?
after i fixed the idle air control my car runs great but when i start it up the idle tends to be a little rough and loping any ideas on what could be causing it im leaning towards vacuum problem but i will have to double check cause i thought that i had replaced all the vacuum lines already, and i hope its not a worn lobe on the camshaft.
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Worn lobe it would be lumpy all the time. I would check you Fuel Pressure also look into changing your fuel filter. Have you changed your plugs and wires recently? Also I would test your coils. Here'* the link to do that. https://www.gmforum.com/trouble-shooting-test-procedures-141/testing-coils-spark-plug-wires-278818/
#3
I had a similiar problem with my '94 bonneville se, 3800 series 1. Idle would be about 500rpm and the car would surge alittle but clear up once i stepped on the gas. Mine turned out to be the EGR valve, once I replaced that she smoothed right out. For me about $65.00 new and about 20 minutes of wrench time.
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One area I found that will give you a lopy idle is a cracked EGR tube. The only way to check this is to remove it, hold it up to the light and look for a crack.
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wow thanks for all the suggestions and yes night i have checked all those and thanks for the info about the lobe, looks like the EGR valve is next to be checked
#7
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what do u mean by idle relearn i dont speak greek lol probably not i was in a hurry putting it on because i had to go to work that night and only have the one car. also does my 92 bonnie even have an egr valve
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