WHY WONT MY TRUCK START

  • Tiny
  • fixitmr
  • Member

Check engine light. Should come on when you turn key to on and go out when started. Here's another thing to look at.
1994 Chevy Truck K 2500 Suburban 4WD V8-393 6.5L DSL

Fuel Cut Solenoid: Testing and Inspection
An inoperative shutdown solenoid can cause a no-start condition. Disconnect solenoid harness connector and with ignition switch in the "ON"
position momentarily touch solenoid harness connector to solenoid connector. If a "click" sound is heard, the solenoid circuit is operating
properly. If "click" is not heard, the system should be diagnosed as follows: 1. With test lamp connected to ground and the ignition switch in the "ON" position, backprobe the shutdown harness connector. If the test lamp
does not light check for open circuit form the ignition switch to the solenoid.
2. If the test lamp lights, check the ground circuit between solenoid stud and injection pump cover to see if connectors are clean and tight. If the
connections are not clean and tight repair and retest.
3. If the ground circuit is "OK", remove the injection pump cover. Connect a jumper wire between solenoid ground connector and ground. With
the ignition switch in the "ON" position, momentarily touch shutdown solenoid harness connector to shutdown solenoid terminal. If solenoid
operates, check for internal injection pump problem.
4. If the solenoid will not operate, replace the shutdown solenoid.

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Friday, May 11th, 2012 AT 2:01 AM
  • Tiny
  • truckfarmer
  • Member

I think that this is the original injection pump and of it is its got 152000 mile on it

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Friday, May 11th, 2012 AT 2:05 AM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,549 posts

The test tree is something you should follow. Fixit gave you a great chart to follow. I have done it so many times and found it to be the pump in the end that I neglected to give it to you. Sorry, I would follow his chart first before condemning the pump.

Roy

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Friday, May 11th, 2012 AT 2:09 AM
  • Tiny
  • truckfarmer
  • Member

The lite does work haven't checked the codes I dnt have s scanner

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Friday, May 11th, 2012 AT 3:10 PM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,549 posts

Did you check the check valve as I suggested?

Roy

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Friday, May 11th, 2012 AT 3:16 PM
  • Tiny
  • truckfarmer
  • Member

Thanks guys and I haven't had time yet got off late yesterday and am working today gunna try and check out all points y'all have suggested tonite when I get off work around 6 then ill get back with you thanks for all your help thus far y'all know alot more about this truck than I do and your help is very appreciated

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Friday, May 11th, 2012 AT 3:58 PM
  • Tiny
  • truckfarmer
  • Member

Ok guys I checked the check valve no shavings and the solinoid is working im gunna hook up the other pmd I've got and see if that helps

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Friday, May 11th, 2012 AT 10:40 PM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,549 posts

Crack a line at the injector and crank it and see if there is any fuel pressure coming out of the line.

Roy

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Friday, May 11th, 2012 AT 11:18 PM
  • Tiny
  • truckfarmer
  • Member

There's fuel but not much pressure just squirts out a lil

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Friday, May 11th, 2012 AT 11:27 PM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,549 posts

I still think you have a failed injector pump as I first stated.

Roy

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Friday, May 11th, 2012 AT 11:39 PM

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