Idle problem on 1989 buick regal, help pleaseeeeeeee

Idle problem on 1989 buick regal, help pleaseeeeeeee
:doh:

ive discussed this issue on here once before, about my 1989 buick regal (2.8 v6)having a high idle problem.

well, since then i have done tons of repairs, and spent a small fortune doing so. all the mounts on this car have been replaced, because they were collapsed, the torque struts were replaced, and the throttle body and idle control valve were cleaned.

BUT, I am still having the same freaking problem, it only seems to have gotten worse, much worse.

When i put it into reverse, it backs up very very fast without even putting the gas on at all. also, when i start it and put it into reverse, i have to keep my foot on the brake for a couple seconds, and it will kinda rev, then calm back down. sometimes i can put it into park for a couple seconds, then back to drive and it seems to not rev.

this weekend i had the idle control valve cleaned, and before it was cleaned the car was idling at about 850rpms, after, it was idling at around 600-625 rpms. but now it just seems like it's gone right back to the way it was.

we also checked for vacuum leaks, we didn't find any.

the engine still jumps alot too.

so, what else could i possibly try with this car??? should the next step be replacing the idle control valve? is there somethign else that may be causing this?? im at my wits end with this thing, all my other problems have been fixed, and this just doesnt seem to want to go away! please, any advice is greatly appreciated, i really dont knwo what else to try without paying a fortune to have someone "professional" look at it.

thanks in advance!!!

  thanku4lovinme

this weekend i had the idle control valve cleaned, and before it was cleaned the car was idling at about 850rpms, after, it was idling at around 600-625 rpms. but now it just seems like it's gone right back to the way it was

on reinstalling the iac did you follow the instrutions as to the length of the pintle from mounting base to tip being 1 1/8th of an inch this is for the computer to know base/0 count on start up then you will need to run the engine around 2000 rpm for the computer to relearn the counts to keep engine idling

  osborste

Hmm, maybe he didn't set it right. So after you reset it, should it be left in park and rev'd to 2000rpm to let the computer relearn the counts?

What if this doesn't work... could the part be bad? Should we try buying another one? What else could be causing this????

  thanku4lovinme

left in park if its the original it maybe bad if its new it could be defective
that should do it as long as theres no service engine light on for other problems

  osborste