How to Change fuel pump in 1991 gmc sonoma - 1991 GMC Sonoma

SOURCE: where is the fuel shutoff switch on a 1996 gmc sonoma?

no fuel shut off switch on pickups that i know of possibly bad fuel pump find your red bypass wire at relay to test pump

SOURCE: How do I change a water pump on a 2002 GMC Sonoma?

Visit autozone.com and register the vehicle. It doesn't cost anything and will give you access to an online repair manual for the truck. The steps for replacing the water pump should be available there. Hope this helped and best wishes.

SOURCE: I need to know how to change the fuel filter in a

Changing filters is on of the easiest at home jobs you can do.
Just locate the the fuel filter housing, take a look and figure it out.
Its as easy as putting air in your tire if you find were its located.
Get The complete tear down and rebuild book for the 98 sonoma @ any parts store and look it up.

SOURCE: what is the fuel pump pressure for a vortec 4.3l

2.2L Vin 4.... 41-47 psi Ignition switch is on and fuel pump running
2.2L Vin 5 ... 55-60 psi " "
4.3L Vin W .. 60-66 psi " "
4.3L Vin X ... 60-66 psi " "

SOURCE: gmc sonoma 4.3 1991 rough start up occasionally

check to see if your egr vave is sticking. if so you will need to replace it.