20 Most Recent 1999 Ford F150 Regular Cab - Page 2 Questions & Answers

Under the hood on left fender will long black box remover cover relay is the first one closest to fender and front in box.

problem torque converter clutch servo/ solenoid check wiring and connections

It's ******* to put an old engine into a newer vehicle. You can do it the other way around, but not this way. Chances are it won't have places for all the sensors.

https://s21.postimg.org/wwpncpluf/pcm_power_relay.jpgClick on the link.Voltage for fuse 18 comes from, pcm power relay.Terminal 30, load side of relay is fuse protected and hot all the time. If you unplug that relay and use jumper wire between terminal 30 and 87, fuse 18 should go hot. That should mean, the control side of relay has a problem, The control side needs voltage and ground.

Check that the battery cable ends (where the wire goes into the clamp) are clean with no corrosion, and that the other end of those cables are securely connected - especially where the ground cable connects. Also check any ground strap that connects the engine with the frame or body.

The P1131 means that your upstream oxygen sensor (the one closest to the engine) is not switching rich to lean and back as frequently as it should. This could be due to a vacuum leak, a failing oxygen sensor, or a rich fuel mixture. Rich mixture - Too much fuel, not enough air. Lean mixture - Too much air not enough fuel.

I would check sparkplugs, plug wires, vacuum hoses to map sensor, check to see if exhaust is strong out pipe, may be a catalytic convertor stopped up , bad O2 sensor will cause starting and idling problems.

This truck has spark plug wiring. Have you REPLACED all spark plugs and wires with new? Have you cleaned the MAF sensor? don-ohio

Could be valve body problems, shift solenoid or the TCM. If all check out good then I'd overhaul the transmission.

You can make a free account on autozone.com and enter the vehicle info and then look for the free repair guides. If you cannot locate anything they have all data which is not free.

Disconnect alternator and replace blown power fuse and see if it is the actual alternator short or harness related. Always check your ground wire for corroision. Ground wires cause resistance problems and cause premature failures of electrical components.

Lifters

Should not if you use 10% or less alcohol. Regular pumps are often labeled "may contain up to 10% ethanol" even if the actual percentage of alcohol is 5% or less; you can badger your local authorities for the exact mix in your area or find it online.

Check the hand book in the glove box ,should be in it.

Is the fluid full ? Pull the transmission pan an check for junk in the bottom . Metal specs an friction material . If you see piles of material an metal , time for a rebuild .

Clutch pack in trans burnt out.

Thermostat, low coolant, or heater control problem