Question about 2003 GMC Yukon Denali

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Put new fuel pump in a 03 yukon cranks but wont start

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: my 2003 gmc yukon wont start

fuel pump is bad change unit

Posted on Jul 27, 2008

  • 22 Answers

SOURCE: Yukon wont start

sounds like the fuel pump you should change the fuel filter

Posted on Dec 03, 2008

Molson02536
  • 3854 Answers

SOURCE: 2003 GMC Yukon - fuel pump

Check your ECM fuse. There should be 2 fuses for your ECM. It's the ECM that controls the function of the fuel pump. Good luck friend and it's also common for the wire harness from the frame to the fuel pump to go bad due to corrosion from the bad weather we get in the winter and rainy spring and fall. 

Posted on Sep 04, 2009

  • 142 Answers

SOURCE: need to change fuel pump on 2004 GMC Yukon XL

well i hope its not full of fuel, remove the filler neck from the car should be 3 bolts by the fuel door, there will also be a ground cable up by thefuel door to remove, next you will have to remove the two straps that hold the fuel tank up slowly lower it as you will have fuel lines and elctrical plugs that need to be detached, the fuel lines have quick fittings, you can buy a tool at auto stores to make removing them easier, un plug the wires., once the tank is out there is a snap ring holding hte fuel pump in the tank. taking a hammer and small drift turn the ring this will release the sending unit, so that you can instull the new one, now reassemble

Posted on Sep 27, 2009

  • 1509 Answers

SOURCE: OK i have a 1999 gmc Yukon i just changed the fuel

I suppose that you mean it starts but doesn't continue to run. And if you try to start it right away it'll just crank. The fuel pump is on in crank but not in run ( maybe ). Find the fuel pump relay in the underhood fuse relay panel and use a test light to cheak the pins for power and ground. First with the test light hooked to a good ground, check to see if it works first ( touch the battery positive ) then touch all the pins of the relay ( removed ) One should be hot all the time ( if not the fuel pump fuse is blown) another should be hot with the key on. one of the others will be hot only in crank ( this is the fuel pump) The last other is ground with the engine running after started. The one thats hot in crank put power to it with a jumper wire and start the engine ( it'll run ) the fuel pump also gets turned on by the oil pressure switch and the fuel pump fuse is blown it'll also not run the engine. But it'll run right after it's cranked and quit

Posted on Nov 16, 2009

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We bought a 03 chevy venture have had it two weeks an it wont start......we put new fuel pump in it. Drove it around it was fine went to store it wont start....i am wheelchair bound could use help


There are numerous reasons for a vehicle not to start. You need to determine if the engine is getting fuel and spark. If one or the other is not present, there will be a no start. Remove a spark plug wire and ground it to the engine. Crank engine over and you should see a spark coming from the boot to the engine. If no spark present, possible crank sensor/ignition module/wiring/computer problem. If spark present, suspect fuel delivery problem. Fuel pump/relay/injector problem/wiring/computer. There can be a considerable amount of diagnostics needed to isolate the problem and correct it.

Feb 22, 2016 | Cars & Trucks

1 Answer

03 saturn view cranks but wont start


first of all, check the fuel pump relay to see if it is going bad. if it is ok! also try this, Have a person turn key to on,, and put your hand on bottom of fuel tank. if the pump is turning on, you will feel a vibration in tank. you may have to do this a few times. the pump only turns on for a few seconds to pressurize system, or to get fuel to the engine. just keep turning key on and off to recycle fuel pump. Good-Day! Hope this helps! relay for pump may be bad.< Check this first.

Jul 25, 2014 | 2003 Saturn VUE

1 Answer

2002 yukon denali xl wont start


Does the starter crank the engine over? If so, check for spark on a spark plug wire when cranking. If you have a strong blue spark, ignition is probably good. Check fuel pressure. Do you hear the fuel pump turn on for 2 seconds when turning key to on?

Dec 15, 2013 | Cars & Trucks

1 Answer

I have 03 GMC Yukon. It began not starting sometimes. I was told it was the fuel pump (but i hear it whinning when i put the ignition to the on position). Then it began starting when i turned the ignition...


sounds like fuelpump check valve or regulator not holding residual pressure you need to check if fuel pressure is holding with engine off approx. 40 psi

Nov 02, 2013 | 2003 GMC Yukon XL

1 Answer

What are the symptoms when fuel pump goes bad on 2003 yukon danali


When a fuel pump goes bad,you wont start,the signs before a failing fuel pump is excessive cranking, and the engine cough through the intake, a check engine light stating lean bank one and lean bank two.You would have a MAF (Mass air flow code).

Mar 28, 2012 | 2003 GMC Yukon Denali

1 Answer

Hoo.commy 01 yukon will not start after sitting for 12 hrs. i have replaced the battery and alternator and the proble is still there.


Alternators wont cause a starting problem. so it cranks? or not? cranks but wont run? the first thing to verify is fuel pressure. If its not 55-60 psi, it will not run. you may need a fuel pump.

Sep 14, 2011 | 2001 GMC Yukon Denali

1 Answer

My 99 yukon just shut off while driving and wont crank back up


If the engine cranks. Possible fuel pump not working.. Turn key and have someone listen at the filler cap to listen for the fuel pump buzz.. If no buzz fuel pump bad

Jan 06, 2011 | 1999 GMC Yukon

1 Answer

2000 gmc yukon turns over not getting gas wont start i replaced fuel pump 1 year ago i checked relay it seems good gas is full ive got spark it sure seems like the fuel pump somebody tell me it something...


i have an 03 yukon and i just replaced the fuel pump and it ran for 2 hours then it just died on the highway. it turns over but will not start. whats wrong with it???

May 30, 2010 | 2000 GMC Yukon XL

3 Answers

99 yukon 180,000 mi. doesn't start. cranks forever, but won't start. Should I be able to hear the fuel pump when I turn on the key?


yes you should be able to hear the fuel pump run for about 5 seconds once the key is turned to the on pos. check to make sure you have spark. if you do try having someone spray air intake or carb cleaner into intake manifold while you crank. If the truck starts right up for a second (or stays running as you keep spraying) Id say you have a bad fuel pump and id change the sending unit also. (First check the fuel pump fuse and fuel pump relay) GMC and Chevy are nororiously known for having bad fuel pump/sending unit problems. I have prob changed over 60 myself.

Nov 30, 2009 | 1999 GMC Yukon

1 Answer

My GMC yukon XL 2001 engine runs after 4 times of cranking.


Try turning key to on only, not start, 2 or 3 times first then try to start. If it starts good first try, then I'd change my fuel filter & then have fuel pressure tested if fuel filter didn't help. You may be looking at a new pump, but lets do filter & test fuel pressure first.

Jul 06, 2009 | 2001 GMC Yukon XL

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