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I have 1995 gmc 2500 truck with a 6.5 turbo diesel, the problem is that it doesnt accelerate when I press on the gas pedal but i will turn the truck off for a few minutes and I will crank it again and then I'm able to accelerate with no problem. Is it something with the fuel or something electronic ?

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Bill Boyd

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  • Cars & Trucks Master
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Electronic
either the accelerator position sensor, throttle position sensor or fuel control module on the pump

Posted on Jan 18, 2018

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5 Related Answers

Anonymous

  • 57 Answers

SOURCE: Chevrolet 2500 Not Running, May Be Fuel Filter Sensor

That red wire is only for the fuel heater.will not cause a no start.try pumping the primer pump on top of the fuel flter hsg. but first open the bleed screw,which is black plastic also located on the top.this will eliminate any trapped air that might have entered the fuel intake system.if the pump does not get firmer and harder to push, then you have a leak in the fuel supply lines or the ck valves in the fuel filter hsg or stuck open. Still no start have it scanned to ck fuel pressure while cranking.it should be close to 5000 lbs

Posted on May 14, 2008

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darin brown

  • 393 Answers

SOURCE: engine stalls when acceleration

sounds like poss throttle pos sensor prob./ could also be problem w/fuel pump not pumping enough fuel at high speed. poss fuel filter clogging also. have someone check pump pressure.

Posted on Nov 11, 2008

Anonymous

  • 3 Answers

SOURCE: My 1995 Lexus ls400 will not accelerate properly when you press

possiblyclogged(or almost clogged) fuel filter,ive ran into this quite a few times,if not clarify w/more detail?

Posted on Feb 28, 2009

USfalcon

anwar alkhaldi

  • 197 Answers

SOURCE: clutch pedal won't go down at all

maybe the clutch forke not in the right place

Posted on Mar 17, 2009

Molson02536

Harvey N Tawatao

  • 3854 Answers

SOURCE: 1993 Lexus Ls400 loss of power at 2500-3000rpm

Check your MAF and MAP sensor. The first 80% of your throttle signal from the TPS works with the O2 sensor to try to keep the air fuel ratio to 14.7 to 1 with the ECM controlling the fuel injector spray time and timing the ignition. After the 80% to WOT the ECM puts the O2 sensor in to an open loop and takes the Reading form the MAF and MAP sensor to run the engine richer so there will not be any Detonation to the engine and burning holes in the valves for running too lean. That is why it always feel like you get a little more when you ease off on the gas peddle from WOT. Recap check the TPS, MAF,and MAP sensor and wires to those sensors, if you can get the car scanned that would be great and you may find out which sensor may have gone bad, the other thing to is the fuel pressure regulator may be going bad and at WOT the pressure may be to high causing it to run to rich causing the loss of power. Good luck and hope this helps. 

Posted on Jul 04, 2009

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