Question about 1999 GMC Suburban
I had the same problem and was told it was the fuel pressure regulator. Much cheaper than new fuel injectors!
Posted on Sep 18, 2009
I have the 1999 suburban, and my mechanic says that the injectors are worn, and that when you shut off the engine, fuel pressure continues briefly and the injectors "leak" a bit, flooding the engine briefly. That's why after they still start right up after a few minutes, i.e., not enough time to flood, or they start up cold, having drained any of the fuel out of the injectors. Park for a couple hours, and you've got a mildly flooded engine. Replacing the injectors is what he suggested, but that is pricey. Not sure if this is the answer or not, but it's what I've been told. Good luck!
Posted on Jul 21, 2009
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Posted on Jan 02, 2017
I would suggest starting with the less expensive solutions first. If you pull the air intake hose off the throttle body and open the throttle with the engine off look down inside if it is black try spraying it out with throttle body cleaner make sure to spray it out good. Afterwards start it you may have to keep your foot on the gas for a few minutes to make sure it doesn't stall then take your foot off the gas pedal and see if it stays running if it does your throttle body just needed cleaned. Note do not use carb cleaner use throttle body cleaner only, carb cleaner can damage the sensor in your throttle body.
Posted on Dec 12, 2010
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