Question about 1994 Buick Century
I have replaced the fuel pump but it will not stay running, it acts like its not firing
If you have already replaced the fuel filter, measure the fuel pressure at the fuel rail. It should be around 35-40 psi when running. If it is not in this range, consider replacing the fuel pressure regulator.
Posted on Apr 16, 2014
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Posted on Jan 02, 2017
The only way the pump will run is if it has a live 12v dc supply to one side and an earth return to the other.
Most cars have the earth side of the pump grounded down to the chassis so I would go for the fact that you have a short on the loom or a faulty ignition barrel.
An auto electrician would isolate the pump wiring to see where the feed was coming from then repair the fault
Posted on May 25, 2009
SOURCE: 1989 buick century 3.3 car starts idles but wont run when giving gas it acts like running out of fuel but fuel pump stay running and has pressure new fuel filter spray carb cleaner it will stay runnin
have you put a fuel pressure gauge on it if so how many ponds of pressure does it have also if this is a distributerless car turn engine with a socket see if there is slack in rotation if you turn counter clockwise 1/4 turn stop and turn clockwise if so you more than likely have a stretched timing chain or jumped time
Posted on Apr 01, 2012
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