Question about 1986 Oldsmobile Cutlass Supreme

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I have a 1986 olds cutlass supreme v6 3.8L when I start the car in the morning it idles really high and gets stuck on high idle. what do i need to do to fix this issue?

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Have you rebuilt the carb or checked to see if the choke was stuck or working? Those would be good starting points.

Posted on Nov 22, 2010

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1 Answer

Rpm is high upon starting the car and does not decrease in speed until I drive the car


sounds like ur timing is too high..u should be around 900 in park and about 600 700 in idle in drive..i just payed 35 to get mine done cuz i dont havethetools:-/

Jun 23, 2010 | 1986 Oldsmobile Cutlass Supreme

1 Answer

Hey when i start my car every morning my car idle going from 1500 to 2000 up and down after for like for 5 to 10 min or when the car warm it stop and goes back to normal and my check engine light it on can...


TO WHOM IT MAY CONCERN:
My car will not idle properly until after it is warmed up.(1995 Olds. Cutlass Supreme 3.4)
It wants to idle up and down between 1000 and and 2000 and will stall out if I don't keep it revved up at 2000 until it warms up.
Thank you and have a great day.
Betty

May 20, 2010 | Cars & Trucks

2 Answers

When i start up my 93 olds cutlass supreme it idles very high


Sticking throttle linkage, or faulty idle control system.

Jun 04, 2009 | 1993 Oldsmobile Cutlass Supreme

1 Answer

Carb loading up and engine surges at idle


I called an old mechanic friend who confirmed what I suspected. The engine control module which controls timing was the culprit. I replaced the defective unit, and the car runs like new.

Nov 17, 2008 | 1986 Oldsmobile Cutlass Supreme

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