Hi guys
My 1988 Ford F350 7.3 is rattling and missing badly and blowing blue gray smoke at rpms over 2000, it has new filters and lift pump. It does this on both tanks, and higher altitude makes it much worse. Fuel shows no sign of contamination. Help!!!
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88 F350 CC Dually, 7.3 normally aspirated. 100 gallon tank in the box, converted to WVO. HIH, Fleetguard coolant and 12V heated filter, frybrid and pollack valves. C-6, 4:10 fond, very fond of fuel...Out cruising the West and South.
It seems to be worse at load, and going down hills. the truck has 157k on it and acts like it's starving to death....could an insufficient amount of fuel from the lift pump cause this? i replaced the mechanical with an electric pump not too long ago....
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88 F350 CC Dually, 7.3 normally aspirated. 100 gallon tank in the box, converted to WVO. HIH, Fleetguard coolant and 12V heated filter, frybrid and pollack valves. C-6, 4:10 fond, very fond of fuel...Out cruising the West and South.
How far over 2000rpm, like 3200rpm+ if that is it then the governor could be cutting in and killing fuel flow to save the engine.
Is the electric is a 28gph plus pump with 5+ psi.....is it working when your driving, some members wired their pumps and they either do not work on start or not in run. IPs have the ability to pull fuel in some cases but performance is poor.
__________________ http://photos.thedieselstop.com/show...0/ppuser/28329
93 F250 7.3 IDI S/C XLT 4X4 E40D 3.55LS, Captains chairs, Tutone Mocha, Leer 48" Hiboy cap, FR & RR hitches, full DeeZee running boards. Factory ordered/delivered Jan 93 has 160K+, it's basically a stock truck with all the Ford options, just no disc player.
Toys: 26'Jayco FK TT, 18'Sylvan Pro Fish.
it starts at 2000 and gets worse up to 2800, really breaking up at that speed. the pump is a facet posi-flo, and I 've read some really bad things about that pump. I'm going to swap in another pump in the am, test my theory.
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88 F350 CC Dually, 7.3 normally aspirated. 100 gallon tank in the box, converted to WVO. HIH, Fleetguard coolant and 12V heated filter, frybrid and pollack valves. C-6, 4:10 fond, very fond of fuel...Out cruising the West and South.
Nope, didn't help....taking the beast to a diesel shop tomorrow. I suspect IP.
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88 F350 CC Dually, 7.3 normally aspirated. 100 gallon tank in the box, converted to WVO. HIH, Fleetguard coolant and 12V heated filter, frybrid and pollack valves. C-6, 4:10 fond, very fond of fuel...Out cruising the West and South.
Shop advanced the IP, said the pump was worn but would last a while longer. I'll replace it and the injectors at home. they did fix the rattling and smoking. [img]/ubbthreads/images/graemlins/smile.gif[/img]
BZ
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88 F350 CC Dually, 7.3 normally aspirated. 100 gallon tank in the box, converted to WVO. HIH, Fleetguard coolant and 12V heated filter, frybrid and pollack valves. C-6, 4:10 fond, very fond of fuel...Out cruising the West and South.
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