Truck wont run!!!
#1
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Truck wont run!!!
I have a 94 cummins and i cant get it to start? About three years ago i replaced the fuel transfer pump, heater/strainer, injection pump, and overflow valve. I changed the fuel filter today to see if it had gone bad and the truck ran fine for about 5 minutes and then when the filter ran out of fuel it died. So then i changed the fuel lift pump and filled the filter again with fuel and it ran fine for five minutes until it ran out and died. I checked the fuel shutdown solenoid and its working fine. Im stuck on what else to do, any opinions will help, Thank you.
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#8
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Well, the only things I can think of would be fuel lines(maybe a dry rot crack just got bigger?), hand pump/lift pump might have a problem, overflow valve maybe. Usually if it will run thirty seconds, mine will go on and stay running. I dont fill the filter, just pump the hand pump real good. Sometimes maybe fifty or more pumps.
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I checked all the fuel lines they looked ok no leaks but i will probably end up changing them, lift pump is new and i primed it until my arm went numb(didnt help), i didnt check the overflow so ill make sure to do that also.
#11
Originally Posted by nvillagrana
I have a 94 cummins and i cant get it to start? About three years ago i replaced the fuel transfer pump, heater/strainer, injection pump, and overflow valve. I changed the fuel filter today to see if it had gone bad and the truck ran fine for about 5 minutes and then when the filter ran out of fuel it died. So then i changed the fuel lift pump and filled the filter again with fuel and it ran fine for five minutes until it ran out and died. I checked the fuel shutdown solenoid and its working fine. Im stuck on what else to do, any opinions will help, Thank you.
#12
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i looked in the tank plenty of fuel, it all started with a small leak from the banjo bolt above the fuel filter. I fixed that then it just got worse. It ran for one day after that before it just completely died. I changed the fuel filter after it failed. I thought it was the lift pump so i changed that again yesterday, still no luck. Also checked the overflow valve this morning and it was ok. This whole problem spans 2 days. First day was the leak above the fuel filter. Second day it ran ok for the day aside from difficult starting and at the end of the day it stopped running altogether.
#13
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i know u mentioned the fuel shut off solenoid and said it was working fine but do check it again...check to see that it is staying up and not fallign down prematurely killing the motor...blue wire likes to corrode or fall off leading to it
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