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Fuel pressure specs for gmc sonoma 4.3 - Sonoma GMC Cars & Trucks

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2001-2004 gmc sonoma 4.3 [X, W Eng.] fuel system specs: 60-66 psi when you turn the ignition key (fuel pump) on without starting the engine. If fuel pressure drops back down quickly after fuel pump stops working (works for only 5 sec.) then you have a bad fuel pump or leaking injector spider.

Posted on Aug 10, 2012

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6ya6ya

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Posted on Jan 02, 2017

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tim mcgrath

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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 " "

Posted on Feb 07, 2010

Peter Toth

  • 159 Answers

SOURCE: how do i chang the fuel pressure regulator .

Should be attached to the fuel rail. The fuel rail connects all of the fuel injectors. The regulator will have a vacuum line on it.

Posted on Dec 09, 2009

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Anonymous

  • 71 Answers

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

Posted on Mar 29, 2009

inspectmycar

Chris Biddle

  • 233 Answers

SOURCE: 2002 gmc yukon fuel pressure spec

that would be 52-60 psi

Posted on Sep 17, 2009

A Miller

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SOURCE: How to change a fuel pump in a 1996 Gmc Sonoma

drop the tank ... use a brass punch to loosen the ring ... to find/replace the pump.

the relay is operated by the computer ...

Check for volts on the outgoing side of the relay ...

check for signal on the input side

check the pressure regulartor ...

If you are still interested ... there is lots more to this. If you are getting weak knees ... remember after you drop the tank and remove the fuel pump ... you are stuck

Posted on May 02, 2010

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2 Answers

Where is the schrader valve for testing fuel pressure on a 2000 gmc sonoma 4-cyl


it is going to be located on the top of the engine driver side between the front of the engine and the firewall on the fuel rail

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1 Answer

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You'll need to check the fuel pressure with a pressure gauge to see if the pressure is within specs. Also check to see if it holds pressure after the motor is turned off. There is a fitting on the fuel rail to connect the pressure gauge to.

May 15, 2010 | 1996 GMC Sonoma

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What is the fuel pump pressure for a vortec 4.3l engine on a 2000 Sonoma gmc


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 " "

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1 Answer

No fuel pressure on 94 gmc sonoma s10. replaced


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2001 GMC Sonoma Ext cab 4.3l, quit while running


Pull plug wire and install a philips screwdriver into the plug wire get it 1/4 inch away from a good ground and crank the engine over, is there spark? if so check that you have fuel pressure buy renting a fuel pressure test kit from schucks or auto zone and turn the Key to run position with the gage hooked up, it should read 50 PSI turn key off and wait 20 seconds should still have 20 PSI of fuel pressure, if no fuel pressure check fuel pump relay, then check fuse to pump. if you have a bad relay and are not getting fuel then check the oil pressure switch to see if you have oil pressure at the switch if no pressure then the oil pressure safety switch has died and needs to be replaced and should stark after replacing. If you have fuel then check the timing to see if you slipped timing belt.

Jun 12, 2009 | 2001 GMC Sonoma Extended Cab

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