Question about 2003 GMC Yukon

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2003 gmc yukon stalls under heavy acceleration fuel pressure drops to under 20 psi and then engine stalls

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Posted on Jan 02, 2017

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SOURCE: my 2003 gmc yukon stalls

Had similar problem with my 2001 pontiac grand prix. replace engine coolant temperature sensor. Vehicle may start , but run very poorly, blowing black smoke, running very rough and misfiring. Cost $15 autozone.

Posted on Feb 03, 2009

  • 1 Answer

SOURCE: The Heater fan in my 2003 GMC Yukon XL will not turn off

I don't know if you already fixed it, but I had the same problem on my 03 yukon, TysonRicky is right. In my case it was the blower control module. You can find it right under the glovebox. It cost me close to $100 for a new one, but very easy to replace. Can't even imagine how much it would've cost me if I had a mechanic do it.

Posted on May 19, 2009

  • 1055 Answers

SOURCE: 1998 GMC Sierra- runs rough then stalls when

had this problem on my neighbors 98 chevy truck with the same engine !!
it turnd out too be the fuel pressure regulator,you have too pull the upper intake too replace it!!

Posted on Jun 06, 2009

  • 117 Answers

SOURCE: Gmc yukon stuck in park.

possible brake switch not sending signal to shifter solenoid to allow shifter movement. possible broken shifter knob/relay rod in shifter assembly

Posted on Nov 15, 2009

  • 112 Answers

SOURCE: The 4wd is not working on my 2003 gmc yukon,

Does the truck have a push button selector on the dash? If so, you need to replace the drive motor on the transfur case.

Posted on Jan 03, 2010

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1 Answer

What should the cold start oil psi and the 190 degree warm up oil psi be on a 2000 to 2002 gmc Yukon with a 5.3 eng

Different engines can show different values. Sometimes it is the sensor itself that causes the variation. The pressures that you are witnessing are well within operation norms and are nothing to be worried about. As long as you don't experience severe drops in oil pressure during acceleration and deceleration, then the oil pressure system is working well.

Mar 03, 2015 | GMC Cars & Trucks

1 Answer

Fuel pressure psi engine kpa 269

Your fuel pressure at 269 kpa is equal to 35 psi your fuel oressure is to low you need to have 448 kpa or 65 psi. Kpa is a metric measurement liqud pressure.

Jan 26, 2014 | 2003 GMC Yukon XL

1 Answer

Fuel pressure

FUEL PRESSURE Command the fuel pump ON with a scan tool.Observe the fuel pressure gage with the fuel pump commanded ON.VIN Z335-375 (48-54 psi)Except VIN Z385-425 kPa (55-62 psi)

Nov 11, 2013 | 2003 GMC Yukon XL

1 Answer

2001 gmc Yukon xl stalling

Could be your fuel pump relay.Here's a link to what it looks like.
  • The Fuel Pump relay on this vehicle is located in the under the hood fuse block. It is labeled "F

Jan 21, 2013 | 2001 GMC Yukon XL

1 Answer

99 yukon cuts out on the highway when accelerating but continues to run. replaced fuel pump and problem dramaticaly improved but still occures

Did you also replace the fuel filter when you replaced the fuel pump? A partially clogged filter will make the engine 'bog down' and lose power under heavy acceleration.

May 09, 2011 | 1999 GMC Yukon

1 Answer

Oil pressure falls and vehicle stalls(oil pressure is good 45 psi)

The most commopn cause of this is that the oil pressure sending unit on the engine is defective, if the pressure drops to far the fuel pump is shut off.

Dec 27, 2010 | 2003 GMC Envoy

1 Answer

1994 LT1 Engine "balks" under acceleration intermittently

Your fuel pump or your catalytic is plugged. have it tested with a infrared gun it will tell you if the cat is bad and if it is replace it test the fuel pump for fuel rail pressure it should read 50 psi then hold to 20 psi for 1 minute.. Also check to see if the intake plate is dirty and if it is do a top engine clean, buy GM's top engine cleaner and run it threw the engine, if you have carbon buildup the compression and cause the car to run bad and the knock sensor will not be able to adjust time. I know this sounds silly but these three things will cause your problem and so will a bad fuel filter.

Jul 22, 2009 | 1994 Chevrolet Corvette

1 Answer

2003 yukon

Check your fuel pressure, could be a faulty fuel pump. Could also be a cracked spark plug wire or ign coil.

Really need to take to a shop or diagnose yourself. As the saying goes, the prob is "Fuel or Fire"

Jun 01, 2008 | 2003 GMC Yukon XL

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