Truck running Rough
#1
Truck running Rough
Just got back from tennesse in my truck about 600 miles round trip ran great on the way there had a quarter of tank of fuel filled up 22 gallons and hauled a car trailer and s10 chevy back truck ran great as i pulled onto my road i got on her a bit nothing to hard and then it started running ruff like i have air in the lines or something but i still have a little below a half tank. would appreciate any incite for tomorrows trouble shooting. Fuel pump? injector pump? Takes forever to start it and then it will not idle you have to keep it running.
#3
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#6
Heres the order of the stuff I would check.
1. Wire to shut off solenoid. The connection can wiggle loose from vibrations.
2. Change fuel filter. I would also dump the fuel out of it into a clear container to check for water.
2a. Check o-rings around the fuel heater for leaks. The best thing to do is just get the filter stud off an 8.3, that does away with the heater.
3. Check fuel pressure.
4. Replace lift pump if its been on there more than a couple years even if the fuel psi is good. Cheap insurance.
5. If none of the above has worked gut the shutdown solenoid. If it still runs bad then run fuel straight to the ip.
1. Wire to shut off solenoid. The connection can wiggle loose from vibrations.
2. Change fuel filter. I would also dump the fuel out of it into a clear container to check for water.
2a. Check o-rings around the fuel heater for leaks. The best thing to do is just get the filter stud off an 8.3, that does away with the heater.
3. Check fuel pressure.
4. Replace lift pump if its been on there more than a couple years even if the fuel psi is good. Cheap insurance.
5. If none of the above has worked gut the shutdown solenoid. If it still runs bad then run fuel straight to the ip.
#7
Well drained the filter no water, ran a hose to fresh fuel that i normally get reprimed everything bled the injectors and she runs good. Fuel pump pulsates as it runs maybe normal but going to get the piston still low pressure pump just to be sure. moral is watch where you fill up i guess. That fuel smelled like it had gas in it but it looked identical to the fuel i normally get, i wonder if the cetane is to low in it and it is reall old fuel? draining tank now
#8
thats what I was just thinking
if it smells like gas git rid of it quick it probly ate the lift pump so you will need a new one filler up and dump half gallon of motor oil 10-40 works fine the additives in the oil will help neutralize the octane in whats left of the gas
Well drained the filter no water, ran a hose to fresh fuel that i normally get reprimed everything bled the injectors and she runs good. Fuel pump pulsates as it runs maybe normal but going to get the piston still low pressure pump just to be sure. moral is watch where you fill up i guess. That fuel smelled like it had gas in it but it looked identical to the fuel i normally get, i wonder if the cetane is to low in it and it is reall old fuel? draining tank now
#9
#10
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