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02 F350 7.3 surging and missing

2K views 11 replies 4 participants last post by  rodcollett 
#1 ·
I was driving in town, everything was fine. Stopped at a light and when I took off, about 2nd gear it started missing and loss of power. Checked oil and added 1 1/2 quarts and it still acted up. Next morning it ran rough, but after a stop at 7-11 it started and ran fine. Next day it ran bad and up to now has not improved. I have changed the filter, cps sensor and unhooked batts. for about 30 mins. and added Lucas add. to fuel tank. What next.... wires inside valve cover or scan?
 
#2 ·
bump for ya and welcome!:ORG welcome:
 
#3 ·
check your HPOP to make sure its full and not leaking -- expecially if you had to add some oil..

also, could be something in the tank?? the fuel pickup may be clogged???

just some ideas!
 
#5 ·
I am wondering if it isn't something in your fuel...

I had a situation where dirty fuel was run through my engine. The truck surged and acted like it was having a seizure. Ended up completely draining the fuel system and replacing the fuel filter numerous times until the engine was back and running smoothly.
 
#6 ·
When I changed the filter, I looked in the bottom of fuel housing and there was what looked like Lucas gear oil additive (sticky and like honey) so I cleaned what I could and installed the new filter. Don't know what it was, but it was dark red! Also, where the heck do I find the HPOP and what does it look like? I just bought this truck on my birthday 9-10-07 and still trying to locate things under the hood! Truck has 184,000 on it and superclean, but didn't know it was so temperamentallllllll!
 
#7 ·
I was thinking maybe something in the tank blocking the fuel pickup -- like algae

just a thought...
 
#9 ·
If there was something sticky in the fuel housing there's a chance that stuff has made it to your injectors which would also make for a poor running engine. Whatever that stuff was, I bet it is throughout your fuel system. I'd find a good diesel injector cleaner and see what happens.
 
#10 ·
or wait for Scuffy828 to get in here (or any of the other techs) to answer your questions..

also, are you throwing any codes at all?
 
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