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adamis's avatar
adamis
Nomad II
Oct 27, 2017

De-Chipped my 7.3

I was having problems with my TS 6 Position performance chip for my 7.3 in that it wasn't starting about 60 percent of the time. I would have to cycle the keys before the chip would successfully work and the truck would start. Other than a bit of annoyance, the performance gains were well worth the hassle but my storage yard wasn't excited about having a truck that was difficult to start so the chip had to go until the problem is fixed.

I'm in the process of shipping the chip back to have it reprogrammed and tested. In the meantime I had to drive my truck, camper and cargo trailer back to the storage yard. It had been quite a while since I drove the truck without the chip and I was shocked at how much slower it was. At one point I was going up just a small incline after a stop light and found myself maxed out at 40mph! Throttle response was nearly non-existent either, having to mash the pedal to the metal to get rolling. My estimate is between the truck, camper and trailer I was moving ~15,000lbs so it stands to reason the 7.3 in stock form isn't going to be winning any drag races. It is also impressive at just how much performance can be unleashed with a simple chip mod I bought for $160 on Amazon. Even with all of that weight, driving it was no problem.

Needless to say, I'm hoping to get the chip back and everything working correctly as soon as possible!
  • My 7.3 isn't chipped (far as I know at least). I believe Ford SVO reprogrammed the ECM while they had it in 1998. I have the OEM rubber plug in the port above the e-brake pedal. I know the transmission has be remapped because everything inside was changed and it shifts hard and quick all the time.

    I've read quite a bit of bad press on aftermarket chips and how they advance the injection timing and what that eventually does to the engine and I'm planning on my truck outliving me so no chips on mine. Mine hauls butt the way it sits.

    Mine is hard on U joints and carrier bearings but I think it's because of the abrupt way it upshifts.

    Been so long since I had a payment book I wouldn't know what to do with one....

    Just put it to bed for the winter. Added biocide to both fuel tanks and Archoil fuel additive and topped them off and fogged the fender wells and wheel arches with oil. Have the battery tender on it and it's sitting next to the camper in a heated garage. It won't come back out until April other than starting it every few weeks and circulating the oil. In the spring it's getting all new hoses, new serpentine belt and a spin on water filter with a potassium permagnate block in it. That will save me from adding DCA4 every few months and using test strips to check the silicate levels.
  • Drove a 7.3 for a few years as a company supplied work truck. Yea, it was no powerhouse.