20 Most Recent 1989 Ford Thunderbird Questions & Answers

You need to run a fault code test of the EEC4 (AKA OBD1) engine control system, this can be related to the ignition control module or the distributor pickup, both are a problem in this year, I have replaced hundreds of them. Use Ford OEM parts if the problem is the two parts I mentioned. To do a fault code test follow the link below. EEC IV Self Test Ford Fuel Injection and EEC IV Electronic Engine Control...

35-40 psi. Have to remove the tank to replace. Did you replace the fuel filter and check that the vacuum line to the fuel pressure regulator is okay? don-ohio

I would go after the door lock first. Older fords have a switch on the door lock that disables the alarm. They tend to break and fall though. I have replaced them with a momentary on/ff switch.But the alarm would go off when opening the door. On some older ones(85,87)(no keypad) I could disconnect the security module and it did just fine.

This model T-bird has a brake light switch that commonly wears out...also, how it attaches is suspect to failure...the bracket and the switch are attached by an adjustable nut, and could just have slipped. I have had this problem before, and had to jimmy-rig mine with a bit of flexible wire to keep it in place.

Put a piece of cardboard under the car. Then look down at the cardboard from above the the area. You can see where the drops are in relation to the hose or water pump or other spot. I do that for locating oil leaks. Hope this helps.

remove one plug and placed it next to a grounded metal surface and spin the engine over and you should see a spark

locate your fuse box then after locating it find the charge label because it is the fuse of the charging system..unplug the fuse and replace it with a new one,,thats it,it will already charge for sure

lighter coils can be bought t any auto spares shops If it is the base unit they can also be got from an auto spares shop but you will have to fit it after you unscrew the nut holding it in place.

where is, where to buy, how to test ? just a hint.

sounds to me like the computer is acting up on you. i would have it checked