No start?

Hi,

When I first read your post, I was thinking there was an issue with a relay sticking, but there isn't one.

I attached the wiring schematic below for the starter circuit, so you have a reference. Based on what I am seeing, either the ignition switch is faulty or there is a mechanical issue with the starter/flex plate. Did the original starter do the same thing?

Let me know.

Joe

See pic below.

Hi,

It sounds like you found the issue. By chance, do you know if this has the 4L60E or the 4L80E transmission?

Also, the reverse lights work off this switch as well. If you want to make adjustments, place the parking brake on and block the wheels. With the key on/engine off, place the vehicle in reverse. Move the safety switch until the backup lights turn on and tighten it in that position. See if that will work for you.

Let me know.

Joe

Hi,

Do you mean the starter won't engage or it does, but the engine doesn't start?

As far as adjustment, I attached the directions below. Try this and let me know if it helps.

Take care,

Joe

See pics below.

Hi,

I believe the connector has two wires to it. You can use a jumper wire between the two for testing. However, the neutral safety switch wouldn't cause the starter motor to stay engaged. If I recall, that was the original problem. Is that correct?

Joe

Hi,

If you want to check the ignition switch, there will be two red wires to it directly from the battery that should have power at all times. Confirm that first.

If they are good, turn the key to the start position and check the purple wire at the switch for power. It should have power only when the key is in the start position.

Have you checked the 5-amp crank fuse under the dash?

Also, I attached the schematic again and highlighted things, so you have a reference.

Let me know what you find.

Take care,

Joe

See pics below.

Hi,

Yes, the purple wire will have continuity with the starter. I'm not sure what you meant above.

You said, "and purple wire not power it reads.18v." Could you explain?

Joe

Hi,

The purple wire should only receive 12v when the key is in the start position. Is that how you checked it? If the key is just in the on position, you won't see B+ power.

Let me know if that is how it was checked. If it wasn't, try that. If it was, considering how many things you replaced, the purple wire itself may be bad.

Let me know.

Joe

Hi,

The movement of the gauge is normal when the signals are on. Is the starter doing anything? For example, does it click? Does it engage and not release from the flywheel?

The only thing that triggers the starter is the ignition switch. You replaced that, correct? Is the security light staying on or flashing?

Here is the thing: If the purple wire is getting 12v with the key in the start position, either the starter has failed, or you aren't getting a solid 12v from the black wire direct from the battery. If the starter works when you have it removed, it should work when it is in the vehicle getting the same voltages unless the engine isn't grounded.

Let me know. I need to clarify if the starter is working and getting stuck on the flywheel or if it isn't working at all.

Take care,

Joe