Question about 2002 GMC Yukon XL

2 Answers

Won't start after being shut off in hot weather

Any ideas why a 2002 yukon 5.3L V8 runs fine, starts fine initially, but after running for a while in hot weather (90+), then shut down and try to restart after a little while (hour or so) wont' start. Put Ziplock bag with ice on fuel line along drivers side of engine for 20 minutes and it starts fine. Any ideas if this just vapor lock, or possibly fuel regulator or pump? Where is fuel reguulator located? I know the pump is in the tank (Ughh!)

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2 Answers

Try a new gas cap

Posted on Sep 11, 2008

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Replaced Fuel Pressure Regulator. So Far SO Good

Posted on Aug 05, 2008

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1 Answer

My 2002 jeep liberty starts and after a period of running and driving and when shut off and immediatly try to start again it will not till its cooled down does anyone have any idea


Its a hot start issue.
Can be related to low fuel pressure or problem with crank sensor.

Also it can be weak battery or starter.

But possibilities are to be inspected to confirm what exactly it is.------

To troubleshoot and confirm the issue,i suggest you refer few solved help links with similar types of problem like yours:------

Click the link below:------

1991 Toyota Trecel: Engine Starts fine but dies when gets Warm? http://whatisbyme.blogspot.in/2012/05/1991-toyota-trecel-engine-starts-fine.html

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1994 Toyota Pickup: Starts fine but dies in few seconds?


http://howtobyme.blogspot.in/2012/05/1994-toyota-pickup-starts-fine-but-dies.html

------------
1995 Lexus LS400: Running Hot? http://whatisbyme.blogspot.in/2012/05/1995-lexus-ls400-running-hot.html

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2002 Toyota Camry: Puff of Blue or White Smoke while Starting? http://whatisbyme.blogspot.in/2012/05/2002-toyota-camry-puff-of-blue-or-white.html

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Multiple problems on car: Car runs hot, A/C blows hot and car starts surging? http://schematicsdiagram.blogspot.in/2012/04/multiple-problems-on-car-car-runs-hotac.html

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Delay starting on Toyota Prius?


http://schematicsdiagram.blogspot.in/2012/02/delay-starting-on-toyota-prius.html
----------- Honda car will not start intermittently? http://technoanswers.blogspot.in/2012/02/honda-car-will-not-start-intermittently.html

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Vehicle Starts, Runs and Loses Power http://whoisbyme.blogspot.in/2012/07/vehicle-startsruns-and-loses-power.html

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Intermittent starting issues on Volvo 760? http://schematicsdiagram.blogspot.in/2012/02/intermittent-starting-issues-on-volvo.html

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Car starts and cuts off immediately? http://repairhelpcenter.blogspot.com/2012/01/car-starts-and-cuts-off-immediately.html

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Car won't start when cold? http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-when-cold.html

===========
These details will help.
Thanks.

Nov 26, 2012 | Cars & Trucks

1 Answer

My 96 yukon wil not start. Sounds like it will crank over but won't. It is not the fuel. I changed the ignition coil still won't start.


try spraying some carb cleaner into a vaccum hose and see if it will run. If so then you have ignition but no fuel delivery. If not then you have an ignition problem. make sure you hear the fuel pump hum when you turn the key to the run position. It should run for +/- 5 seconds then shut off. remove gas cap and listen for fuel pump operation through the fill hole. If you can hear the pump then you have a fuel injection issue. If the engine starts and runs for a few seconds then shuts off then you can suspect the crank or cam position sensor. The fuel pump runs through the oil pressure switch which could also be an issue.

Are you able to start the truck with application of the gas pedal?

Sep 22, 2011 | 1996 GMC Yukon

1 Answer

Vehicle chokes, sputters, and then shuts off


Start with the simple and replace the fuel filter. The fuel filter may have reached the end of it's life time and is dirty causing the issues you have. The worst is the fuel pump it self has gone bad and needs to be replaced, the fuel pump should be producing 62 to 65 PSI when the engine is started and should drop no more then 5 PSI when the engine is running. You can check the fuel pressure at the shredder valve with a fuel pressure gauge. Good luck and keep me posted, be glad to help get your Yukon running 100% again.

Nov 16, 2009 | 2002 GMC Denali

1 Answer

2002 Yukon XL 6L won't start or starts rough on


Have the fuel pressure switch checked.

Sep 08, 2009 | 2002 GMC Yukon XL

1 Answer

My yukon will start but won't stay running. When


Check air filter, maybe clogged. Check leaks of vacuum on the intake manifold, maybe a broken hose.

Aug 11, 2009 | 2002 GMC Yukon XL

4 Answers

96 ford explorer v8 wont start all the time


try replacing the fuel pump reley
they are a little bit funny in fords
i had a ford 1 time thet ran fine for hours in the driveway but go 2 blocks and the truck would die dam reley took me 2 monthes to diagnose once i did i had a great vechiale untill a dui hit me broad side

Jul 25, 2009 | 1996 Ford Explorer

3 Answers

Car not starting after car runs for a while and weather is hot


have the starter tested because it sounds like a bad solenoid in the starter and it makes it get hot so it won't start

Apr 26, 2009 | 1991 Lincoln Town Car

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