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WHAT ARE SOME OF THE CAUSES FOR VEHICLE TO*****
1999 GMC Yukon
Between 45-50 mph truck****** while going uphill or overpasses
Monday, December 5th, 2011 AT 7:58 PM
Do you have a check engine light?
What exactly is it doing?
Monday, December 5th, 2011 AT 8:02 PM
No engine light When taking off when the truck reaches 45-50 it****** then levels off. When going uphill or over bridges it****** or acts as if getting no fuel
Monday, December 5th, 2011 AT 8:31 PM
Could be caused by one of the following below
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Manifold absolute pressure sensor.
Fuel pressure regulator leaking or defective fuel pump.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.
Note: If it doesn't apply disregard it and keep testing.
Monday, December 5th, 2011 AT 11:30 PM
Hattsy, did you get this fixed yet?
Saturday, February 11th, 2012 AT 6:47 AM
to post a reply.
When i turn my ignition my fuel dont come on and when i pull the fuel relay out and put it back in it turns on
Does not go over 25miles can put gas padel all the way to the ground and does not go
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Where is idel control secsor located
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How do i determine which 4 wheel selector switch to get for my 2004 yukon w rpo code np1 or code np8
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