I have a 92 Full size Chevy Blazer 5.7 Liter 4wd.
fuel pump was replaced at 190,000 miles.
The fuel pump runs for a few seconds when I turn the key to on.
The car however will not start. If I put a squirt of gas in down the throttle body
the car starts and runs. After 5 or 10 minutes Idling the car abruptly quits.
When I have someone crank the engine and I watch the throttle body injectors
they do not squirt any gas into the throttle body even though the pump goes on
for a few seconds when turning the key to on. I can squirt more gas into the throttle
body and start the car and it will run for another 5 or10 minutes and abruptly die
again. Each time the engine dies it is instant, with no grasping for fuel.
Its like someone pulled the plug. I have watched the injectors when the engine dies
and at the moment the engine dies the injector stop spaying fuel. Something is sensing a problem and shutting down the engine.
Does this sound like any of the following.
1: the ECM
2: the Throttle Position sensor
3: the Oil pressure sensor
4: the Fuel pump Relay
5: the Fuel pump
6: Distributor cap and rotor
Monday, November 5th, 2012 AT 7:05 PM