We took our dedicated 1997 Ford F250 to a mechanic to have him flush the water out of the motor and replace the CNG filter. (A friend of our mechanic, who works for Questar as a fleet mechanic, was the one who told him to flush the water to help with our cold starting issue.) The truck started and ran great for a whole two days. After that, the truck just won't run properly. We've replaced the spark plugs twice, swapped out the mass air flow sensor with a new one, and have beat our heads against the wall to no avail.
The truck will not go over 10-15MPH even with a full throttle and it has absolutely no power.
We have taken the truck to another mechanic who connected the OBD-II computer and cannot find any error codes. The truck was a powerhorse before this. Are we looking at a possible compuvalve issue? Does anyone have any other ideas?
The truck will not go over 10-15MPH even with a full throttle and it has absolutely no power.
We have taken the truck to another mechanic who connected the OBD-II computer and cannot find any error codes. The truck was a powerhorse before this. Are we looking at a possible compuvalve issue? Does anyone have any other ideas?
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