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73-87 Chevy _ GMC Trucks => Fuel Systems and Drivability => Topic started by: WILDERTHANU on July 14, 2022, 01:16:10 pm
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50k OG miles truck.... 454 TBI
Truck has new tanks/pumps/sending units/dash switch/tank selector valve/ both pump relays. They were replaced over a year ago and everything ran perfect.
About 2 months ago with the right tank selected it would not turn on the pump, left tank pump worked fine, so I just ran w the left side only.
Now last week the left started being intermittent.
In the am.. the left tank fuel pump will go on at key turn and stays on for a while.. weird. The right fuel pump I could not get to turn on still. You can hear them kick on usually when key is turned on( r/l whatever one is selected) standard primer function. Could the heat be doing something here.... this is killing me. Its around 100 during the day and 60s at night. I cant get it to do anything in the afternoon.
(https://i.ibb.co/85Qn0J7/20200404-185601.jpg)