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Hello all,
I have an issue with my truck that I am hoping you can help with. I have posted in forums like this before and not had very good luck.
I have a 1991 F250, 5.8 L, 125,000 mi. I have owned the truck for about 8 months and would actually like to be able to drive it. I bought it with a check engine light on (almost a death blow in CA because it causes an automatic failure when it is SMOG tested). I ran codes with a jumper wire in the test port. I got a Code 63-TPS low voltage and Code 98-Hard Fault. On the recommendation of a mechanic firend I changed the TPS and IAC Valve. No change. I then went out and bought a tester at the parts store and ran the test again and got the same codes. I tried to complete the code reset procedures and the codes would not clear. I have also read that the Code 98 could also mean that the Neutral Safety Switch could be bad.
I have taken it out on several short test drives (around the neighborhood) and it seems to shift hard into second gear when moving from a start. When I bought it I had it towed home because it would not stay running when put into gear. When I started digging around I found that it was low on tranny fluid. I filled it with about 1.5 gal of tranny fluid and corrected that problem. Hoping that the hard shift is not because of the lack of tranny fluid. Previous owner had stopped using the truck and only drove it a couple of miles from home to service station that I picked it up from.
J
I have an issue with my truck that I am hoping you can help with. I have posted in forums like this before and not had very good luck.
I have a 1991 F250, 5.8 L, 125,000 mi. I have owned the truck for about 8 months and would actually like to be able to drive it. I bought it with a check engine light on (almost a death blow in CA because it causes an automatic failure when it is SMOG tested). I ran codes with a jumper wire in the test port. I got a Code 63-TPS low voltage and Code 98-Hard Fault. On the recommendation of a mechanic firend I changed the TPS and IAC Valve. No change. I then went out and bought a tester at the parts store and ran the test again and got the same codes. I tried to complete the code reset procedures and the codes would not clear. I have also read that the Code 98 could also mean that the Neutral Safety Switch could be bad.
I have taken it out on several short test drives (around the neighborhood) and it seems to shift hard into second gear when moving from a start. When I bought it I had it towed home because it would not stay running when put into gear. When I started digging around I found that it was low on tranny fluid. I filled it with about 1.5 gal of tranny fluid and corrected that problem. Hoping that the hard shift is not because of the lack of tranny fluid. Previous owner had stopped using the truck and only drove it a couple of miles from home to service station that I picked it up from.
J