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98 olds achevia 169000 mi high rev


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l2k9g3v
New User

Jun 11, 2009, 12:46 PM

Post #1 of 4 (2208 views)
98 olds achevia 169000 mi high rev Sign In

sometimes when i start my car it will rev up to between 1800 or 2300 rpm and stay there. i have changed all fluids, and filters but didnt fix the problem. im thinking that it is something electrical. any help would be greatly appreciated. also how much it would cost to repair
thank you!


Loren Champlain Sr
Veteran / Moderator
Loren Champlain Sr profile image

Jun 11, 2009, 3:30 PM

Post #2 of 4 (2201 views)
Re: 98 olds achevia 169000 mi high rev Sign In

l2k; Do you have a check engine or service engine soon lamp illuminated with the engine running? You could have a vacuum leak or a sticky IAC (idle air control motor). The IAC can be cleaned which is a common problem. Does the idle come down, eventually, as the engine warms?
Loren
SW Washington


l2k9g3v
New User

Jun 11, 2009, 7:24 PM

Post #3 of 4 (2197 views)
Re: 98 olds achevia 169000 mi high rev Sign In

sometimes the rev slows as the engine warms and the check engine light is on when the motor runs.


Loren Champlain Sr
Veteran / Moderator
Loren Champlain Sr profile image

Jun 12, 2009, 4:10 PM

Post #4 of 4 (2179 views)
Re: 98 olds achevia 169000 mi high rev Sign In

12k; I don't mean to sound sarcastic, but if the check engine light is on, that should be telling you something.Unsure But, if you don't know, my apologies. The CEL being illuminated is telling you that the computer has picked up a fault in one of the many systems that it monitors. The computer will then set a trouble code that will tell which system is seeing a problem. Most parts stores will retrieve the code(s) for you. Don't let them sell you any parts. Just get the codes and post them for us to see; Then, we can go from there.
Loren
SW Washington






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