94 Buick Skylark - Service engine light upon high idle


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94 Buick Skylark - Service engine light upon high idle

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Auto Repair Home>> Automotive Repair>> Engine Troubleshooting

1-fast-turtle
New User

Mar 18, 2012, 6:46 PM

Post #1 of 3 (1960 views)

94 Buick Skylark - Service engine light upon high idle	Sign In

Hello,

I just bought a 1994 Buick Skylark with 45,000 miles on it. Now everytime that it is idleing the service engine light comes on and it has kinda a high idle I guess you could say. I found out today that if the air conditioner is on then the light doesn't come on, whether it is idling or not. As soon as I turn the air conditioner off, then I get the light after a few seconds. The light does go away if I am driving the car. Also, I'm not sure what the engine is but When I bought it the guy said it was V4 if that helps any?

Thank you and Kindest Regards,
Shantell

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Mar 18, 2012, 6:56 PM

Post #2 of 3 (1942 views)

Re: 94 Buick Skylark - Service engine light upon high idle	Sign In

The "check engine" light is an indicator for a system that monitors many electronic functions in the system, also called the "malfunction indicator lamp" (MIL). It can come on for any of hundreds of different causes from any of the systems that the computer monitors. Some are very important and can lead to further component or engine damage and some are emissions related not as serious but still a problem and need to be repaired.

Your first step is to have the computer scanned to retrieve the trouble codes that were set when the check engine light came on. Those codes will give you specific information about what the computer saw and will get you pointed in the right direction to find your problem. With a 1996 or newer and some 95 cars and you have an AutoZone or Advanced auto parts in your area, they will read them for free. Once you have these code numbers, we can be a lot more specific about what your problem may be.

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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

1-fast-turtle
New User

Mar 18, 2012, 7:01 PM

Post #3 of 3 (1936 views)

Re: 94 Buick Skylark - Service engine light upon high idle	Sign In

Thank you! I don't have either of those sites where I live. I'll have to call around to the places I do have and see what is wrong. Thanks for the reply though.

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