Question about 1991 GMC Sonoma
Sounds like you have defective spark plug wires or low fuel pressure maybe.
Posted on Feb 09, 2012
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Posted on Jan 02, 2017
Hello. The GMC Sierra has an electric fuel pump so you should ensure that its fuses and relays are working before checking it. You may need to clean your fuel pump or replace it if your gas tank is not empty, but your vehicle has difficulty getting fuel. The GMC Sierra comes in a variety of styles and trim levels that can affect the replacement fuel pump you choose.
Posted on Mar 02, 2010
SOURCE: Vehicle idle's fine but when
Sounds like it might be caused by low fuel pressure to the injectors. Maybe the fuel filter needs to be replaced. If that doesn't help, then it might also be the electric fuel pump in the gas tank.
Posted on Mar 13, 2011
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