Question about 2002 GMC Yukon XL
On a camping trip we were heading down the highway at 65 pulling our camper when the engine just died. Pulled over and waited 10 seconds and it started back up. We made it to camp and while there had the fuel filter replaced and the fule system cleaned. We had no problems on the way home but we now just returned from another trip pulling our camper and it died several times going and on the way home and it seems that it occurs when going uphill only. It always starts back up after sitting for no more than 10 seconds.
You need to have the fuel pressure tested while driving and this can be done, and with the gage. I hook up the gage to the fuel valve and put the gauge facing the windshield and wire tie it to the wipers to see if the fuel pump is bad, if the fuel pressure ranges at 30 PSI I would put a load on it to see if the fuel pressure dropped under those conditions you are driving. I would also test the fuel pressure regulator to see if it gave full fuel that means pulling off the hose and making the fuel rail pressure 50 pounds per square inch. If the regulator passed the test then I WOULD SUSPECT THE FUEL PUMP HAS QUIT. A 2002 is old enough to have this happen they wear out so I hope this helps and gives you an ideal of what to fix.
Posted on Sep 01, 2009
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Posted on Jan 02, 2017
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