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View Full Version : Idle Problems on 89 LXI.



robutek
09-23-2003, 09:22 PM
I am having problems with my 89 LXI (EFI) Automatic. When I start up the engine and leave it in park at anytime of the day, at first it was only mornings, when it's in "P" the RPM would go up and down between 1200-2000 back and forth. What can be the problem or problems and how can I check for what's wrong? Thanks.

sniper556mm
10-02-2003, 08:22 PM
low coolant, or idle valve coming apart look at the back of the manifold see the valve with 2 little cooling hoses going to it,start car remove both philips screw from top and screw the valve down they have a tendency to come loose,but 9 out of ten times you need to fill coolant and bleed properly

BITESIZE
10-02-2003, 08:47 PM
I will never go back to my automatic tranny. I had that same problem, before the swap. After the 5 speed swap the idle went back down. You're tranny could be on the verge of being dead.