help truck won't start

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Feb 20, 2009 | 06:29 PM

#11

underpressure!

Diesel Fan

Joined: Aug 2008

Posts: 66

Likes: 2

From: Circleville,Ohio

Sounds to me that the computer on top of the pump took a crap......they are known for the computers going out before anything internal happening.

Feb 20, 2009 | 06:42 PM

#12

wake26

Thread Starter

Diesel Fan

Joined: Feb 2009

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is there any way to know for sure I hate to throw down $1200 buck if I don't have to.

Feb 20, 2009 | 06:53 PM

#13

mishkaya

Diesel Bomber

Joined: Oct 2008

Posts: 2,618

Likes: 108

From: Iowa

Quote:

Originally Posted by wake26

is there any way to know for sure I hate to throw down $1200 buck if I don't have to.

You can test it by hotwiring the pump, pins six and seven, and cranking the starter. If you get no fuel to the injectors this way, the pump is dead.
mishkaya

Feb 20, 2009 | 07:23 PM

#14

wake26

Thread Starter

Diesel Fan

Joined: Feb 2009

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was out looking at the truck again had my son in trying to start it a heard a clicking noise coming from the air do relay but it is still pumping this wouldn't have anything to do with the problems?

Feb 20, 2009 | 07:34 PM

#15

mishkaya

Diesel Bomber

Joined: Oct 2008

Posts: 2,618

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From: Iowa

Quote:

Originally Posted by wake26

was out looking at the truck again had my son in trying to start it a heard a clicking noise coming from the air do relay but it is still pumping this wouldn't have anything to do with the problems?

I doubt it if it was still pumping, it pumps at a reduced rate while cranking the engine, and that's probably what causes the noise.
mishkaya

Feb 21, 2009 | 01:16 PM

#16

wake26

Thread Starter

Diesel Fan

Joined: Feb 2009

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well I run power to 7 and grounded 6 crack 3 of the injector lines and only get a slow flow of fuel out of 2 of the lines, it is buy no means is coming out under pressure. dead pump?????