Question about 1986 Oldsmobile Cutlass Supreme

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I had a new engine put in my car but the service man could not get the light off.

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The light is on because a problem exists in the engine electronic controls. To reset the light disconnect the battery negative cable for 5 minutes. If the problem is still there the light will come back on. In that case you need to run a fault code test on the system, to do that go here and read the way it is done.

Posted on Nov 08, 2012


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Posted on Jan 02, 2017

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SOURCE: 93 olds cutlass service engine light turns on periodically

have you had someone plug a computer into it and see if it is logging a code? this code be a v.s.s. sensor, to a fuel code. you might run the car by your local mechanic or autozone, advance auto, pepboys etc, they will normally pull the code for you for free and let you know what the outcome is. good luck any other questions just let me know i'll try to help.

Posted on Feb 28, 2009

  • 1 Answer

SOURCE: 1986 cutlass supreme brougham

my signal lights (all 4) quit working, hazards still work, changed relay for hazards, didn't fix problem. checked bulbs, all good??? anyone have an idea

Posted on Aug 04, 2009

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SOURCE: fuel tank size 1986 cutlass supreme brougham


Posted on Sep 11, 2009

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SOURCE: 1991 olds cutlass supreme with a 3.1 v-6 the engine

I am having a similar problem, but there is no check engine light. It seems that mine dies at the light or running, if the rpm's drop. I am wondering if the Idle air control valve is bad or possibly the ERG valve?

Posted on Feb 05, 2010

  • 466 Answers

SOURCE: 1986 Oldsmobile Cutlass Supreme vacuum hose

Ok sent you this the engine you have to specify that engine has to help you. Thanks2c36ea6.jpg

Posted on Mar 24, 2010

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