L98 idle problems when hot
Thread Starter
Drifting
Joined: Jul 2002
Posts: 1,488
Likes: 4
From: Frostburg MD
L98 idle problems when hot
My 89 has a problem where it won't idle without holding the pedal down partway. This is an intermittant problem that only seems to occur when the car is really hot. If you drive it for a while and the engine cools back down, it works fine and idles with no problem. The car is not showing any error codes, and drives fine otherwise. If it helps, the car is harder to start when warm, takes more cranking. Should I be looking at my MAF relays or does it sound like a problem with my IAC?
Burning Brakes
Joined: Dec 1999
Posts: 1,114
Likes: 0
From: Lawrenceville Georgia
Re: L98 idle problems when hot (shotchkiss)
I recently purchased an 89 with 32k and noticed that it idled too slow once it warmed up. So slow in fact that it would die at the lights. :eek: I don't know if it was the right thing to do but I sped up the the idle by screwing in the idle adjustment. Now it idles between 6 and 7 depending on the mood of the engine I guess. I had the car scanned and it showed no codes. Good luck, maybe someone else has some info for you.
Thread Starter
Drifting
Joined: Jul 2002
Posts: 1,488
Likes: 4
From: Frostburg MD
Re: L98 idle problems when hot (vettek50)
Can an EGR valve problem be heat related? It only does this when the car is run hard and gets really hot, never during normal driving. Runs great otherwise with good power.
Advanced
Joined: Feb 2003
Posts: 57
Likes: 0
From: Westfield NJ
Re: L98 idle problems when hot (shotchkiss)
I had the same problem in my 91, removed IAC and cleaned. No trouble since. Make sure you replace the TB gasket when You remove it and replace it dry. Good Luck! :steering: :cheers:
