Question about 1999 GMC Yukon
Getting good fuel pressure and fire to plugs
This problem you are having sounds like a crankshaft sensor going bad. Do you have a check engine light on, in your dash? Have your computer scanned, and cars computer will tell you what the problem is. GOOD LUCK FRIEND.
Posted on Dec 01, 2014
Well is the fuel pressure maintained after shut down it could be a anti-theft issue known as starts runs and dies with a factory style scanner on data screen shows gas enable yes/no or theft on/off theses are related to the ignition system watching the security light if blinking while running or after dies may indicate a broken wire in steering column.
Posted on Dec 03, 2014
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Posted on Jan 02, 2017
SOURCE: 1999 chevy blazer fuel problem
probably not fuel filter . probably going to have to remove the upper intake and replace the fuel injector spider(fuel inj assebly) if it is droping fuel pressure it is leaking into the upper manifold
Posted on Nov 30, 2008
IF U HAVE A BAD FUEL PUMP OR A FUEL
FILTER BUT THE FUEL PUMP BAD BECAUSE OF THE FILTER MORE THAN LIKELY SO I WOULD REPLACE BOTH IF THE PRESSURE IS NOT BETWEEN 45 PSI AND 55 PSI. GOOD LUCK CHEAPEST PLACE FOR A PUMP AND FILTER IS ADVANCE AUTO PARTS JUST REPLACED THE ONE IN MY TAHOE.
Posted on Sep 02, 2009
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
replcace filter? ,you say you have good pressure.have you checked your pressure with a guage? i had pressure but not enuff,really 96 4.3 vortex needs to be pretty high(check requierments at parts store) fuel pump is in the tank, cheapest one @ 235.00
Posted on Dec 18, 2010
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