Question about 2001 GMC Jimmy

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Fuel guage goes to empty as i turn key to start engine 2001 gmc jimmy no start

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Sounds like you have a bad ignition switch, not the lock cylinder but the switch itself. Electrical power should continue to go to the gauges and to the ignition module even with the key in the Start position.

Posted on Dec 07, 2016

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My fuel guage will go from full to empty a few times while at an idle or with the key on engine off thensettle into the correct level. It happens erratically.


sounds like a loose connection somewhere could be ground connection or corrosion problem check connections and clean if that does not solve could be sending unit getting ready to fail replace as nessary

Oct 13, 2013 | 2001 GMC Jimmy

1 Answer

2001 jimmy sle. I just replaced the fuel pump. Fuel guage works. Pump does not. Checked fuel pump relay- its ok. Trucks turns over but won't start. Whats next?


Test for ground and power at your fuel pump connector. Also, the sending units sometimes come without the pump itself wired in. You have to actually splice in connections sometimes. If you get stuck, dropping the tank again and removing the sending unit to inspect could be your next step.

Jan 29, 2012 | 2001 GMC Jimmy

1 Answer

On my 2001 GMC jimmy sls,when the fuel guage gets near half full it drops to empty and lately when really full it reads empty until a few gallons are gone. What is the problem and how do I fix it?


you probably have a bad fuel level sensor in the fuel tank.you will have to remove the fuel tank to replace the sensor.the contacts on the sensor will break causing the fuel gauge to be inacurate.you can buy the sensor without having to buy the whole fuel pump assembly.

May 31, 2011 | 2001 GMC Jimmy

2 Answers

I have a gmc jimmy that will not run it keeps flooding out we replaced the spider under the intake and the fuel presure reg. but still dumps fuel like a stuck pig any suggestions


put a fuel pressure guage on it and turn the key to on, the pressure should build and hold if not you may have a leaking injector or injector seal

Nov 20, 2010 | 1994 GMC Jimmy

1 Answer

My 01 GMC Jimmy wont start. It was running fine yesterday. Today when I out the key in, all the lights and guages work. I can hear the fuel pump working, and turning the key does nothing. The amps draw...


Starter or ingition switch problem. Let me guess, you live in a cold region? If yes, then I'm betting money on the starter. The cold does a number on starters. The colder it gets the more likely they go out. Lol, happened to my friends truck Tuesday and mine this morning. That's what we get for living in -10 degree weather right?

Jan 30, 2010 | 2001 GMC Jimmy

1 Answer

Have 2001 GMC Yukon XL, and noticed fuel guage acting eratic and this afternoon car would not start at all...cannot hear fuel pump running


the fuel pump is inside the tank and i have seen trucks that the pump wiring harnes inside goes bad! when you turn the key on you should hear the pump running,if not i bet it is the wiring inside

Jan 15, 2010 | 2001 GMC Yukon XL

1 Answer

Have a 2001 gmc jimmy...drove home gas gauge read 1/4 tank..next day cranked over but wont start..gas gauge reads empty...put $10.00 from spare gas can..cranked over but no start ..gas gauge still reads...


chevy and gmc trucks have an on going problem with this,turn the key on,and get a rubber mallot or a hammer and hit the bottom of the fuel tank a couple of times,this will unstick something in the fuel pump/sending unit.

Jan 05, 2010 | 2001 GMC Jimmy

1 Answer

2000 gmc jimmy wont start fuel pump comes on and cuts off but will not start.I have changed the fuel filter and that did not work. Is the pump not building the pressure it needs to start or would my...


When you hook the pressure test guage to shrader valve on fuel rail what it reads is what the pressure is from pump, around 60 p.s.i. all you need to do is hook up the guage and turn on key, you do not have to turn engine over, and if pump is good it will shoot up to 58 or 60 right now.

Feb 14, 2009 | 1999 GMC Jimmy

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