c10aseejed

1999 gmc sonoma, died while driving and will not start. fuel pump is pumping, replaced filter and its getting fire.. it fires when i put fuel in the throttle body but not getting fuel on its own.

Tuned Performance

iTrader: (92)

Try a truck forum. This is for 82-92 f body’s. Even though you can hear the pump check your fuel pressure.

Go Blue

Have someone crank the engine while you look down the throttle body. You should see a "Star" pattern on the throttle body plates if you have a TBI fuel injection system. If so, those injectors are known to go bad. If you know you have spark, and air is pretty much a given, then a good place to go is the fuel pressure and looking at the throttle plates when someone starts the engine. You should see a good spray of fuel in the shape of a star roughly hitting the fuel plates.

Tuned Performance

iTrader: (92)

4.3 used a poppet injector that’s known to go bad. 2.2 used a standard style injector and was mpfi.

Go Blue

Good call Tuned Performance!

Pro

He should get GM's mpfi conversion kit and get rid of those poppets. But he wont read this - he is off to find a sonoma forum.