Question about 1994 GMC Safari

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Engine stops i have to balance the gas evry time i step on the brake so engine will not stop.i have to use mu left foot to brake and maintain gas with my right foot.when on park idling is fine except for a little bit of inconsistency.changed spark plugs and adjust timing.

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  • rickjo Nov 09, 2008

    recently i only had problems in my idling when applying brakes on my 1994 gmc safari.but now even whenon park idle jumps up and down and almost conks out.where is the low idle sensor located?is it expensive.can i replace it without going to a mechanic?

  • Anonymous Dec 16, 2008

    I had this same problem and found that The EGR vavlve was not returning to the closed position at idle. Ran fine going down the road but would not idle when I slowed or stopped. Removed the EGR valve found it was full of carbon and occasionally a small chunk would break loose and stick under the valve. Cleaned the EGR valve reinstalled it and it cured the problem.

    Not the easiest to remove - but it's easy to clean... better than buying a new EGR valve which is quite costly.

    Remove air cleaner - use a long 3/8 extention with swivel only 2 bolts just a bit awkward to get at. Unplug electric and it come right out.


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I had this same problem and found that The EGR valve was not returning to the closed position at idle. Ran fine going down the road but would not idle when I slowed or stopped. Removed the EGR valve found it was full of carbon and occasionally a small chunk would break loose and stick under the valve. Doesn't take much to cause a problem. Cleaned the EGR valve reinstalled it and it cured the problem.

Not the easiest to remove - but it's easy to clean... better than buying a new EGR valve which is quite costly.

Remove air cleaner - use a long 3/8 extension with swivel - only 2 bolts just a bit awkward to get at. Unplug electrics and it comes right out.

Posted on Dec 16, 2008

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Low idle sensor is probably bad.

Posted on Nov 06, 2008


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