biggy238
Active member
- Joined
- Aug 3, 2008
- Messages
- 10,983
My 96 is doing something I can't fully explain.
It is going neutral in gear, and the only thing I have noticed that coincides is the volt meter being at 12v rather than 14v like it should be.
I think this ties in with the grid heater function as it seems to be shortly after I start the truck.
The other issue is that several times while running ~80mph (according to the GPS) on my way home the transmission was trying to drop out of overdrive, and judging by how high it was trying to Rev, I think it was trying to downshift to 2nd.
The only other time I had it downshift like that was when I had first bought the truck and a battery cable was dead shorting the entire electrical system.
Plenty of good clean transmission fluid in it.
I think it's the electrical supply to the PCM but what specifically should I look for? I'm curious about the excitation of the alternator and the fact that the voltage stays low as long as it does.
I do have a pot for TPS and the percentage is pretty high. It isn't attempting to shift OD until 60mph right now.
Thanks for any input
Kyle
It is going neutral in gear, and the only thing I have noticed that coincides is the volt meter being at 12v rather than 14v like it should be.
I think this ties in with the grid heater function as it seems to be shortly after I start the truck.
The other issue is that several times while running ~80mph (according to the GPS) on my way home the transmission was trying to drop out of overdrive, and judging by how high it was trying to Rev, I think it was trying to downshift to 2nd.
The only other time I had it downshift like that was when I had first bought the truck and a battery cable was dead shorting the entire electrical system.
Plenty of good clean transmission fluid in it.
I think it's the electrical supply to the PCM but what specifically should I look for? I'm curious about the excitation of the alternator and the fact that the voltage stays low as long as it does.
I do have a pot for TPS and the percentage is pretty high. It isn't attempting to shift OD until 60mph right now.
Thanks for any input
Kyle