1987 Scottsdale PU stalling out under heavy acceleration and now wont hardly run at all.Fuel pump? Distributor? Ignition module??

How To Test The GM Distributor Mounted Ignition Module

could be the fuel pump,check to see if you have power to the pump,if you do undo fuel line and see pressure if none or low replace,if you have no power to the pump check fuses and relay.










TIM............

If there is fuel to the fuel injectors in the top of the throttle body TBI (Throttle Body Injection) but they do not function, then most likely there is no signal or pulse to the fuel injectors. Check the ECM and the Fuel Injection fuses first.

The ignition module and the pick-up coil/stator located inside of the distributor is what generates the signal that the ECM (Engine Control Module) uses to time and fire the fuel injectors, as well as the signal to run the fuel pump and the dwell signal timing to fire the ignition coil, and a faulty ignition module can cause any one of these systems or all of them to malfunction.

That does sound like a malfunction with the ignition module inside of the distributor, and you can remove the ignition module and have it tested for free at most auto part stores. If the ignition module does test out alright then the problem could still be in the pick-up coil/stator, (it can be tested using an ohm meter by dis-connecting the wire connector from the pick-up coil/stator and the ohm reading between the two wires from the pick-up coil/stator should be between 500 and 1500 ohm's, and both of the wires from the pick-up coil/stator should show an open loop or an infinite reading between each wire and ground) and if the pick-up coil/stator is found to be faulty then replace the entire distributor, or the distributor will have to be dis-assembled to install a new pick-up coil/stator.

If you do purchase a new ignition module be sure that it does come with a silicone grease or a die-electric compound because it is a heat sink and the ignition module will burn up without it.

To install the new ignition module first clean out the mounting surface inside of the distributor. Then completely coat the metal contact surface under the ignition module with a thick coat the silicone grease or die-electric compound and do not leave any of the metal contact surface of the ignition module un-coated with the silicone grease or die-electric compound, and be very careful not to over-tighten the ignition module or it will be damaged.

The ignition module located inside of the distributor is what generates the signal that the ECM (Engine Control Module) uses to time and fire the fuel injectors, as well as the signal to run the fuel pump and the dwell signal timing to fire the ignition coil. A faulty ignition module can cause any one of these systems to malfunction.

That does sound like a malfunction with the ignition module inside of the distributor, and you can remove the ignition module and have it tested for free at most auto part stores.

If you do purchase a new ignition module be sure that it does come with a silicone grease or a die-electric compound because it is a heat sink and the ignition module will burn up without it.

To install the new ignition module first clean out the mounting surface inside of the distributor. Then completely coat the metal contact surface under the ignition module with a thick coat the silicone grease or die-electric compound and do not leave any of the metal contact surface of the ignition module un-coated with the silicone grease or die-electric compound, and be very careful not to over-tighten the ignition module or it will be damaged.

No fuel pressure, bad pump or filter. check pressure.. clogged injectors. bad ignition module. Because you siad TPS I assume this is fuel injected, ?? Bad wires or distributor or rotor or cap

Two things, Check the map sensor, Next check the Ignition Control
Module. I just fixed this problem on my 87 Ranver V6 2.9 two days ago.
it drove me nuts until I checked the module attached to the back of the distributor. There is a plug connected to it at the left side of the Distributor. Use a small screw driver to slip under the retainer clip on the rear of the module. Pry out, (be careful so as not to snap the plastic
retainer clip) Pry clip away from the module and pull the plug out.
There are two screws holding the module to the distributor. Ford has a special tool for removing the module. I did not use it. Remove the distributor cap, look inside to the back of the distributer. You will see where the screws are connected. Loosen the distributor locking device,
(retains the timing position) Then rotate until you can access the screws. Replace the module, then reverse the procedure. You will need to re-time the engine, unless you mark the distributor position and someplace below the distributor as a reference mark.
Good luck!
Hugh
[email protected]

there is a two piece control module and pick up in distributor you could replace these or try a used distributor

Have you checked the coil

You say it isn't getting spark either. Have you checked the ignition module?

Try replacing the ignition control module it is located under the distributor cap Cost is around $30.