Truck Lost Prime
#1
Truck Lost Prime
I have a 1994 Dodge Diesel...that has ran/started fine up to 2 weeks ago. One morning (85 degrees) it wouldnt start......not even fire. I checked the fuel solenoid and it worked fine. Next, a friend suggested I pressurize the fuel tank. I did and the truck started and ran fine. The next morning (after setting all night) it wouldnt start again. This leads me to believe the check valve in the X-fer pump isnt working. Can anyone tell me if my thinking is correct or offer another idea......THANKS?
#2
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Lift pump
Originally Posted by Merle
I have a 1994 Dodge Diesel...that has ran/started fine up to 2 weeks ago. One morning (85 degrees) it wouldnt start......not even fire. I checked the fuel solenoid and it worked fine. Next, a friend suggested I pressurize the fuel tank. I did and the truck started and ran fine. The next morning (after setting all night) it wouldnt start again. This leads me to believe the check valve in the X-fer pump isnt working. Can anyone tell me if my thinking is correct or offer another idea......THANKS?
#3
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Most likely your return fuel line is leaking air. It can allow air in without leaking fuel out. Less than 2 feet of 5/16" diesel rated hose will fix it right up. Definitely try this before replacing the pump, I know of several lift pumps that have gone over 500k.
In red below.
In red below.
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It could be the fuel return line that runs behind the fuel filter real close to the block. The rubber breaks down from being so close to the engine heat. Do a search on here and you'll find what you're looking for.
#7
I just did my return line near the block last week on my 95 ,also I did not like what I saw when I looked at all the lines,they all appear to be on there way out,so you may whant to think about that also.....
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