89 mustang gt not firing on four cylinders?

Question

I bought the car and had to finish putting some stuff back together, like radiator and vacuum lines, ect. I got it running but it will not fire on four cylinders, they are 3,4,5, and 7. I have tried everything, plugs and wires are ok, fuel injectors appear to be geting power and compression is great. And I have redropped the distributor many times. I am lost, I even tried the old 5.0 firing order please please help.

Answer 1

You might need a new trigger, or the sensor. That is if you know the cap is good.

I guess the "trigger" is not a replacement part. It takes a new distributor to fix that.

Take a look and make sure that the piece under the "button" (rotor) is intact for all eight cylinders. My guess is that some of the teeth like parts are broken.

Answer 2

this sounds like a cracked cap. alot of times you cant see the cracks, but when you put a load on the engine (accelerate) it misses on several cylinders. spray water, (windex bottle ) on the cap and wires at night and look for the fireworks. hope this helps.

Answer 3

fuel injectors maybe getting power, but, that doesn't mean they are working