99 yukon denali driving home and it stalled and will not start again. Replaced fuel pump assembly and will not start.
heavychevy -
Hello
Have you replaced the fuel filter?
Heavychevy
New User -
NO I JUST GOT A NEW ONE AND I'M GOING TO PUT IT ON. I CHECKED THE WIRING AND I AM NOT GETTING ANY POWER TO THE FUEL PUMP PLUG wHEN i TURN ON TEH IGNITION. THE RELAY CHECKS GOOD.
heavychevy -
The fuel pump is also fused could be your problem, also check along the frame for brocken wires. If all of that checks out, then you need to check if the PCM is providing a ground for the control side of the Fuel Pump Relay. If it isn't, then the PCM must be bad. Most PCM programming turns on the fuel pump for a few seconds when you turn the key to run possition then shuts off the pump unless the PCM sees that the engine is turning (detects this via the Crankshaft Position Sensor).If your fuel pump doesn't even turn on at the initial Key On, then it's not a sensor issue.
heavychevy -
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heavychevy -
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heavychevy - heavychevy -
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heavychevy -
Just doing a follow up to check on the progress of your denali.
Heavychevy
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