1989 Ford F 150 - Answered Questions & Fixed issues

In the link https://www.google.com/search?q=1989+Ford+F-150%2C+4.9+knock+sensor+location ..

try a new filter and possibly fuel pump

My database showed this picture.

Test the wiper moter I believe that may be your problem

Are you talking about the door lock actuator please specify what it is your looking for

If your linkage is jammed also then that's the problem but if you can freely move it to another position and your clutch is working properly disconnect the linkage and manually try to move the pawl with the wheels blocked emergency brake on engine off if it's stuck you might have been rolling foward when you put it in reverse and this jammed the reverse you can try to do it by taking out the drive shaft have someone depress the clutch and try to turn the output shaft with a pipe wrench wrapping the out put shaft with rubber so you don't damage the splines on it tighten the pipe wrench as much as you can with vise grips to get the rubber to grip the splines the pipe wrench and a long piece of pipe will give you the leverage you need to try to free up the sincros if it's possible are you sure your clutch is working properly and is the linkage jammed to check as stated before first but this is an old truck 30-31 years by door sticker date and if you were rolling fowarded when you put it in reverse you might have snapped the sincros inside

This is the PCM engine computer. It is the engineering number off the part itself. The service part number in the catalog will be different. Something like E8TZ-12A650- B.

999 of 100 that are replaced have nothing wrong with them. So, you probably are not oing to fix your issue.
What is the problem?

The cover sheath on the cable is broken allowing the cable to move the linkage in and out of gear

If its low do you fill it back to the right amount and what type of fluid goes in a 88 f250 7.5l

If I remember correctly the engine you have is a model using a ignition module mounted on the outside of the distributor. Then it has a magnetic pickup on the internal breaker plate. These often go bad. Trying starting fluid you could see if the engine will fire. Your truck has an inertia sensor which may have tripped. Another possibility is that the distributor gear turned when you worked on the timing chain and the distributor is out of time with the cylinders. You need to be on compression stroke with distributor rotor pointing to number one cylinder at a few degrees of TDC. Hope this helps.

I tried the DIY service and repair manuals from a website and it actually helped me repair transmission problem in my jcb 3cx site-master. it wont move forward or reverse, engine is good both solenoids for forward and reverse work. I don't have much technical knowledge but I just followed it step-wise, and works perfect! got it from www.reliable-store.com

You have a broken retaining clip in side the transmission .These hold the shifting forks as well as the gears in the correct positions . Drain the oil from the transmission you will see the broken clip

Sounds to me like you need to replace your fuel pressure regulator. Ford vehicles should have 39.15 psi of fuel pressure.

Did you check for vacuum leaks rubber hose collapse when warm

You just have a ground problem between the frame and tank ground. It has to be connected to a clean tab on the tank at the fuel sending unit. Check and clean them, both tanks. It gets confused and don't know what to do without a complete circuit.

Is your battery/connections any good?

Has the. F150 set for a long period.if so the gas is old.add real gas no ethanol with fuel treatment.

the O2 sensor works on one volt .5 is around the running voltage, i would refit the air hose as it will run the converter hotter at idle.

Leaking head gaskets can and do cause this, the combustion gases are very corrosive and rusts the heck out of the cast iron.