TRUCK WONT START GOT FUEL FIRE

Asked by Jan 20, 2015 at 01:36 PM about the 2000 GMC Sierra 1500 SLE Extended Cab LB

Question type: Maintenance & Repair

RECENTLY REPLACED INTAKE MANIFOLD PUT ALL BACK TOGETHER RAN LIKE CHAMP PARKED FOR FEW MIN. WENT START WOULD NOT PUT LITTLE FUEL IN TROTTLE BODY RUN TIL FUEL GONE I STUMPED GOT FUEL TO SYSTEM GOT FIRE BUSINESS IN DIRE STRAITS WITOUT MY TRUCK CAN U HELP ME

4 Answers

21,785

if fuel and fire are getting to the combustion chamber, the engine runs- so one of these things is NOT happening, and it sounds like fuel-

2 out of 2 people think this is helpful.
Best Answer

I HAVE FUEL IN LINES TO TROTTLE BODY INJECTOR ASSEMBLY FULL FUEL GOT FIRE AT PLUGS AS I SAID REPLACED INTAKE BUT ALL WENT BACK TOGETHER NO PROBLEM DROVE FOR THREE DAYS PARKED FOR A FEW WENT START WOULD NOT RUN BUT CRANKED.I DISASSEMBLED INJECTOR BODY CLEANED REPLACED ALL O-RINGS TRUCK RAN GREAT BUT HAD TO FEED FUEL IN TROTTLE BODY TO GET RUNNING AFTERWARDS FIRE RUN EVERYTIME WHY I STUMPED THINKING MAYBE RUST,DIRT GOT DISLODGED AND CAUSING PROBLEM

21,785

look down in the throttle body while someone cranks it- you should be able to see fuel going into it- if it runs when you dump gas in it, that should tell you something- but why did you replace the manifold? I can't tell what is going on, especially after all that work has been done- but my best guess would be the fuel pump or relay- check to see if you have power going there-

21,785

And if your business depends on this unreliable truck, it is time to get something better-

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