car wont turn over no spark

[AsharC]

i have 1985 325e the car ran good for a few months then one night kinda gave it a good beat. it ran fine on the way home next morning go to start wont turn over. i need help bad

THE CAR CRANKS BUT WONT TURN OVER.

i tried everything changed the crank sensors out tried a different ecu got brand new distributor cap and rotor. new battery,new coil tried different main relay fuel pump relay. changed out the ignition switch still nothing then started checking for power. TURNS OUT NOT GETTING ANYTHING TO THE COIL. what do you guys think can be causing this problem

all help is appreciated thank you.

[M-power1989]

has a similar problem try the crank pulley

[jlevie]

It is usually helpful to get the terminology correct. The starter turning over the engine means that the engine is cranking or turning over. A failure to start means that the engine doesn't fire.

Three things are necessary for the engine to fire while turning over. Spark, fuel, and the proper amount of air. The first check is to see if spark is produced at the coil output. A broken timing belt, bad ignition wires, bad distributor rotor or cap can confuse the issue if you check for spark at a plug.

In this case no power at the coil when the ignition is on would indicate a problem with the ignition switch or wiring between the switch and the coil.

[AsharC]

It is usually helpful to get the terminology correct. The starter turning over the engine means that the engine is cranking or turning over. A failure to start means that the engine doesn't fire.

Three things are necessary for the engine to fire while turning over. Spark, fuel, and the proper amount of air. The first check is to see if spark is produced at the coil output. A broken timing belt, bad ignition wires, bad distributor rotor or cap can confuse the issue if you check for spark at a plug.

In this case no power at the coil when the ignition is on would indicate a problem with the ignition switch or wiring between the switch and the coil.

i have already replaced the ignition switch and its still the same issue

[jlevie]

Trace the wiring from the switch to the coil.

[603Racing]

+1 ^

[AsharC]

when i trace the wires what should i look for?

[jlevie]

What you are looking for is a break in the circuit. One possibility other than a simple break in the wiring would be an alarm system.

[AsharC]

thats exactly what i came across there are two black 4 pin harnesses that are just hanging under the dash they are coming from the ignition switch loom. i will get a picture up tomorrow for you're clarification on what they are.

[AsharC]

bump

[vandol]

Kinda confusing, have you checked for fuel?

Is there gas in the tank?.. Its happened a lot.