I have a 92 lumina that has engine light on and is running rough
20

Asked by polaris144 Oct 14, 2015 at 01:15 PM about the 1992 Chevrolet Lumina Sedan FWD

Question type: General

Cooling fan running for no reason. Then engine light will turn
off for no apparent reason.  Fan shuts off and it runs perfect.
This might happen a minute later or a 100 miles later. Any
ideas? Ecm?

3 Answers
30,915

Tom answered 9 years ago

Chances are that it generated an alarm that's still on the OBC even if it's not shown on your display. Have someone put their OBD (on-board diagnostic) into the plug under the dash ... it should tell you what caused your problem

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polaris144 answered 9 years ago

Forgot to mention that it's not throwing any codes. 2 different guys checked with 2 different OBD's

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polaris144 answered 9 years ago

Forgot to mention that it's not throwing any codes. 2 different guys checked with 2 different OBD's

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