i believe not 100% but sounds like a Jeep 4.0 liter throttle body and probably 1992 or around there.
Yes it had a throttle body to control the amount of air getting into the engine.
The TPS ( Throttle position sensor ) is on most newer vehicles. They are located near the throttle body or the throttle cable near the cylinder head. Its purpose is to keep the vehicle at idle speed without having you keep your foot on the gas pedal. when a TPS goes bad, normally your check engine light will come on and your vehicle will not idle properly.
It is possible
throttle body
Hows your altenator?That could be it. Its not the alternator. Its the air intake on the throttle body. If you have a newer F-150, instead of a carbeurator it has a throttle body. Take off the air intake hose from the throttle body and open the butterfly shaped flaps and spray throttle body cleaner inside the throttle body and outside the flaps. This will clean carbon deposits and buildup. Your engine will run smooth and all functions will be normal and your instrument lights will not come on again. Do not let a mechanic talk you into costly repairs. I had the same problem with my F-150 and all it was was a dirty throttle body.
heads
180 horses come from the throttle body injected 5.0L V8.
Powertrain issue. Commonly a problem with the throttle body or accelerator pedal
Your TPS is located toward the bottom of your throttle body. If lucky, you can remove it with an offset screwdriver, otherwise you will need to remove the throttle body so you can turn it over and have access to the TPS. I had to unplug my MAS, EGR, IAC, and TPS, remove the air inlet between the air filter and throttle body, remove throttle cable mount and remove two brackets, 1 under and 1 behind the throttle body before it would come off and allow access to the TPS screws. A lot of work for 2 little screws. If there is a simpler solution out there, I would really love to hear about it. I would rather work smarter than harder.
If your failsafe engine light comes on you need to clean your throttle body and have the electronics rebuilt. To remove the throttle body first disconnect the battery. Then disconnect the air cleaner held on by one clamp. Remove the two electrical harnesses from the throttle body. Make sure to move the red tabs to be able to depress the other tabs. Then remove the two engine coolant hoses. The throttle body is held on by four bolts connected to the intake manifold. Remove these bolts and the throttle body should come off. Clean the throttle body thoroughly with throttle boby cleaner and a rag. If you have heavy carbon build up, then either the "special coating "is no longer there, or it's still on and not worth the dam. In either case you can't hurt anything by cleaning it. Go on E Bay in the throttle body catagory and look up BBA remanufacturing in MA. Ther will charge you $320.00 to rebuild the electronics. That includes shipping both ways. When you get it back install it using a new gasket. Connect the battery and you have to reprogram the computer. They will send you instructions on how to do it. It's very easy. That should take care of your failsafe engine light. P.S. I sprayed some silicone in the throttle body, and wiped it out. Good luck.
Use the paperclip method found at Saturnfans.com to get the SES Code. Clean your throttle body and EGR
the iac is on the throttle body. take the cover off of the throttle body to get to it theres 2 screws to take out for it to come off. clean off the old gasket be careful not to damage the gasket mating. and they recomend that you not use any solvent on them