Question about GMC Sonoma

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2001 GMC Sonoma Sputters and dies

Numerous Parts replaced already as in: Throttle Positioning sensor, thermostat, fuel pump, fuel pump relay, fuel filter, spark plugs, ignition control module, downstream 02 sensor, a vacuum leak was found and repaired, the air filter is good and the catylic converter is good. It was throwing out the code po179 (low circuit imput) and we replaced the flex fuel sensor and I still have the same issue. I am about at a loss.

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  • GMC Master
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Alcohol in Fuel Test and Reset 2006 Flex Fuel Chevy Impala
you need to reset the PCM ,you need to find a guy like this.

Posted on Jul 16, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 231 Answers

SOURCE: 2001 GMC Sonoma Engine stopped while driving

sounds like it could be plugged injectors or a timing problem.

Posted on Oct 27, 2008

  • 1 Answer

SOURCE: 1999 Yukon cold start problems.

1999 Yukon Start Issue - I have replaced the octopuse, battery, fuel filter, fuel pump, still having problems starting in cold weather, sometimes after a heavy rain.

Any suggestions?

Thanks

Posted on Dec 08, 2008

csmock132
  • 4669 Answers

SOURCE: Mustang, 1992 2.3L dual point OBD 1 error codes problem

Have you checked for spark on all 8 plugs? Unplug the exhaust side coil pack and run the engine. Does it run on all 4 cylinders?

Posted on May 27, 2009

iambanshee74
  • 3489 Answers

SOURCE: 1998 Jeep Grand Cherokee Laredo 4.0 6cyl, when i

Have you checked the coolant temp sensor. They also have something called a MAP(manifold absolute pressure) sensor that could be causing this issue. This sensor will have a 4 pin connector and 1 vacuum line going to it. Should be on the firewall, just behind the engine.

Posted on Feb 22, 2010

  • 11 Answers

SOURCE: I have a chevy silverado - 5.7 engine. It runs

Fuel Pressure/Pump?
Injectors?
Fuel Pressure Regulator?
Are there any codes/check engine light?
Ignition coil?
Just off the top of my head.

Posted on Mar 11, 2010

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GMC Sonoma Maintenance & Repair Questions - CarGurus

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can you bypass the fuel pump relay on a 1997 gmc sonoma

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GMC Sonoma Questions - wiring diagram for a 1995 gmc ...

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Dec 12, 2015 | 1991 GMC Sonoma

1 Answer

94 silverado 1500 5.7 runs then dies like if the ignition key was turned off new fuel pump new fuel filter new pump relay new plugs


Check air filter and housing to see if airflow is obstructed.
Check Throttle positioning sensor, replace as needed.
Check plug wires, replace as needed.

Jan 21, 2013 | 1988 Chevrolet Silverado 2500

1 Answer

1996 gmc sonoma, wont start, if i prime it it will start then it dies, already replace the fuel filter and fuel relay...help


Have you hooked up a preesure gauge, if youre priming it by turning the key a few times i would say you have a fuel pump thats low on pressure and probably should be replaced.

Aug 04, 2010 | 1996 GMC Sonoma

1 Answer

I have a 2001 GMC Sonoma 4.3L that stalled while driving. Will turn over but wont start. Have spark, new battery, and the back spark plugs are dry. No error codes. Has fuel to manifold.


SOUND LIKE FUEL PUMP BAD. CHECK FUEL PUMP RELAY AND FUSE.MAKE SURE YOUR ENGINE IS NOT OVERHEATING.SCAN IT FOR IDLE SPEED CONTROL AND ENGINE COOLANT TEMPERATURE SENSOR FAULTS.

May 12, 2010 | 2001 GMC Sonoma Extended Cab

2 Answers

2001 GMC Sonoma won't start


The battery may have went completely dead, even though it was just changed.

Feb 24, 2010 | 2001 GMC Sonoma Extended Cab

1 Answer

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

2 Answers

2001 gmc sonoma fuel pumpeplaced,ot starting now


check to see if you removed the fuel pump solenoid, which is one of the steps you should have done when changing the pump.

Jan 15, 2009 | 2001 GMC Sonoma Extended Cab

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