2002 GMC Sierra Throttle kills engine

2002 GMC SIERRA
112,000 MILES • V8 • 4WD • AUTOMATIC
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LVPENNIMAN
  • MEMBER
  • 1 POST
My truck started missing while driving home, eventually not responding to the accelerator and finally turning off as I pulled into a parking lot. Will occasionally crank, but will only idle for about 30 seconds before dying. Any increase in throttle kills the engine. I have changed the fuel filter, plugs & wires, throttle position sensor, cleaned throttle body, changed the MAF sensor. OBD codes P0102, P0332, P0452 are what came up on my code reader.
Aug 20, 2010 at 8:06 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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WRENCHTECH
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 20,761 POSTS
The first thing you want to check is the fuel pressure. This is a high pressure system that won't even run if the pressure drops below 55PSI.
Fuel pumps are the #1 cause of "no starts" in that vehicle.
Aug 20, 2010 at 8:49 PM
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