Question about 1999 GMC Suburban

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1999 Chevy Suburban 5.7 V8 Starts fine will run smooth, but will not take fast throttle. If stomp the gas it will die and pop. It will reach interstate speeds and run smoothly if only minimum throttle applied--too much and it will stall out. Fule pump? Fuel pressure? Other? I've replaced the fuel filter. Thanks

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Ok here we go, hook up a feul pressure guage that can be read from inside the car, and check fuel pressure while driving, if the pressure stays fairly constant then the best bet is to hook up a real time scanner with snapshot capabilities ( like snap on or bdm pro) and take it for a drive again, ti could be a sensor reading out of range but not enough to set a code

Posted on Sep 14, 2010

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