Slight cut out under load
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Posting Guru
Joined: Oct 2006
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From: New London, Mo
Slight cut out under load
96 f250 7.3 5 spd. Has a PHP hydra with stock hydra tunes. Havent driven the truck a lot since I got it. Truck ran fine last summer but set and was only started a couple times till now. Been driving the truck to work lately and it runs fine under 1/4 throttle but past that it acts light it is slightly missing under a load. Will injectors cause this? Buzz test passed. IPR duty cycle was around 40 with pump pressure at 2900 psi in the highest tune. Fuel pressure is good. What else can i check for this issue? Been awhile since ive messed with a 7.3
Lead Driver
Joined: Mar 2006
Posts: 5,098
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From: western SD
My 97 started to do this a couple of years after replacing one of the injector wiring plugs to the valve cover. I was in kind of a hurry and got lazy and used butt connectors to do the repair. It started out as a random miss, then progressed to a miss when loaded, then all the time. I removed the butt connectors and soldered the wires and covered the splice with heat shrink tubing, and all is well.
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Posting Guru
Joined: Oct 2006
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From: New London, Mo
The previous owner had replaced the UDVC harnesses and the pig tails and they did use butt connectors on the new connectors. I will check all of those connections this weekend and may solder them all if I get time.
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