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1993 Chevy Cheyenne 2500, is not getting enough fuel to start. Fuel pump is good and new filter. Any suggestions

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I would change the coolant temp sensor first as it's cheap and it fails.
It's the sensor beside the thermostat,and it's the temp sensor for the computer,not the temp senor for the gauge on the dash.Also sometimes the idle air control can get slow to move on a cold start and just cracking the throttle just a little with the gas pedal helps start a cold engine with a slow idle air control.

Posted on May 06, 2017


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How many fuel filters on a 1993 chevy Cheyenne 2500

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Chevy Cheyenne 2500 not gettibg fuel. I bypassed filter, it was somewhat plugged. Still not getting fuel. How do I check relay vs pump?

Listen at the tank filler area while someone turns the key on (don't try to start), You should hear the pump run for a short time, then shut off. If it keeps running, then the pump is likely worn out. If the pump runs at all, the fuse and relay are ok. You can check fuel line pressure (rent a test kit) at the test port (looks like a tire valve) on the fuel rail just above the injectors. You should read about 45 PSI--anything much lower, suspect the pump or pressure regulator.

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