I have a 1998 Chevy silverado when I turn the key on the fuel pump primes up as it should and I go to crank it and it starts for about 2-3 seconds and then dies

Asked by Aug 25, 2015 at 11:22 PM about the 1998 Chevrolet C/K 1500 Cheyenne Extended Cab SB

Question type: Maintenance & Repair

I have a brand new sending unit and
fuel pump and there is plenty of fuel
pressure and spark cause if I take
some starting fluid and spray it into
the throttle body it will run fine, I'm
stumped and can't figure it out
please help!!

3 Answers

26,185

does it die fast...electrial or gas....? did you change the fuel filter? do you have 50lbs fuel pressure...find out before going into crank/cam/sensors....

1 of 1 people found this helpful.

it dies after about 2 seconds, my bulb was blown for the security light when i go and crank the engine and it begins to die the security light begins to flash and once the engine has shut down the security light shuts off, im thinking its the passlock malfunctioning but from what ive read the security light stays on or continues to flash

its like once the engine starts there is a malfunction with the passlock and it cuts fuel to the injectors oh and btw my key is hard to turn i have to jiggle it up and down to finally get the ignition tumbler to turn would this be causing some sort of issue with the passlock?

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