Re: 2003 Grand Cherokee Transmission issues
Thanks for the tip on fixing the wiring. However I did find the black wire, it was actually layered against the orange/red wire, well concealed and it actually does go into the TPS, which is hard to see unless you get close because you can see bare wire if you point a light up into it at the right direction.
The hard part to see on this particular TPS is that it has 3 portals for the wires to go into, and I'm not so sure the wiring was done very professionally.
My plan was to do this. Take the Jeep into the guy who found the bad contact on my negative battery terminal and ask him to do the following.
1. do the test you recommend with the key in the ignition turned to on and measure the voltage in each wire.
2. if step one fails, then figure out what its going to take to replace all 3 wires and run them correctly.
3. If step 3 is successful, reconnect to the current TPS while I investigate the brand of TPS used as a replacement form Advance Auto Parts. The price on the invoice shows to be only $34.00, I know the Mopar TPS runs around $70.00, so maybe switchig out is food for thought also.