Crank no start

Tiny
BREEHONDA
  • MEMBER
  • 2000 CADILLAC ESCALADE
  • V8
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
Truck sat for the winter. I went to start and had drained battery. Threw on battery charger and have power. Try to start it cranks twice then you hear what sounds like the starter disengage and free spin. Once in a while it’ll give a third crank that almost sounds like it wants to start. Was low in gas when parked so added fuel. Can hear the fuel pump click on when key is turned on. Sprayed starting fluid in intake and that didn’t help. I have not done a spark test but since I hear it try to fire sometimes when cranking I believe there’s spark. When I get frustrated and walk away something under the dash just clicks and clicks thill the battery drains again. I’m at a loss, please help.
Tuesday, February 22nd, 2022 AT 8:41 AM

11 Replies

Tiny
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Here’s a video to hear what it’s doing.
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Tuesday, February 22nd, 2022 AT 9:46 AM
Tiny
JACOBANDNICKOLAS
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Hi,

What I'm hearing is a weak battery. It may have failed from sitting through winter. Here is what I suggest. Follow this simple guide for load testing the battery at home, or remove the battery, charge it, and have it load tested at a parts store.

If the battery is too weak, it won't start. They need to be able to maintain a minimum of 9.6v while cranking for the ignition system to work properly.

Here is the link:

https://www.2carpros.com/articles/car-battery-load-test

Let me know what you find. I'm interested in knowing.

Take care,

Joe
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Tuesday, February 22nd, 2022 AT 7:58 PM
Tiny
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The battery was getting low in the video but still tested at 11.8v after several starting attempts. Battery test is good. We’ve been keeping on a trickle charger while trying to diagnose here’s another video from this afternoon after battery had time to charge back up. I can run a voltage test while cranking tomorrow morning. I really don’t think this is a battery issue as it doesn’t start even when being jumped by another v8.
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Tuesday, February 22nd, 2022 AT 8:42 PM
Tiny
JACOBANDNICKOLAS
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Hi,

I did hear it. It sounds like the starter Bendix is bad and allowing the starter to disengage from the flywheel while the starter is still turning. Have you removed and inspected the starter and gears on both the starter and flywheel?

I attached the directions below for removal. Let me know.

Joe
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Wednesday, February 23rd, 2022 AT 2:56 PM
Tiny
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I have not. I’ll pull it in the coming days and let you know. Thanks.
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Wednesday, February 23rd, 2022 AT 7:26 PM
Tiny
JACOBANDNICKOLAS
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Hi,

Sounds like a plan. Please understand that I am hearing this on a computer, so it may not sound the same in person. However, it sounds like a starter issue.

I will watch for your reply.

Take care,

Joe
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Wednesday, February 23rd, 2022 AT 7:37 PM
Tiny
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It definitely sounds like you’re hearing what I’m hearing. It cranks over like twice and then the starter free spins. If it’s not something in the starter, then I would assume it would be a computer issue the way it is acting like it is sent a signal to disengage (but that doesn’t answer why it would free spin). I’ll definitely keep you updated when I get it out and inspected.
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Thursday, February 24th, 2022 AT 6:53 AM
Tiny
JACOBANDNICKOLAS
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Hi,

The starter engagement happens at the same time as the starter motor gets power. Both are triggered by the same power supply and wire. So, if you hear it free spin, which tells me the motor still has power, and the Bendix should still be engaged (it has no choice).

In this case, if the Bendix drops out and the motor continues, it isn't a wiring issue within the vehicle. Instead, the Bendix is likely bad and disengaging when it shouldn't.

You could remove it and have it bench tested at a parts store. However, based on what I hear and what you describe, it needs to be replaced.

If you look at the attached pic below (sorry it's so sloppy), I attached the wiring at the starter solenoid (Bendix) and starter motor.

Note there is a black wire. That wire is a heavy gauge wire direct from the battery. It has 12v at all times. The smaller purple wire is the "Trigger" wire. It will receive 12v only when the key is in the start position.

When the purple gets power, it engages both the Bendix and the starter motor. So, if one has power, they both do.

I hope that makes sense. Note: I put a K+ on the one that only gets power with the key in the start position.

Pics 2 and 3 are the entire circuit. I circled the battery in pic 2 and showed how it goes to the B terminal on the starter. And purple goes to the S terminal.

Let me know if this helps or if you have other questions. Also, if you replace it, let me know if that takes care of the issue.

Take care,

Joe

See pics below.
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Thursday, February 24th, 2022 AT 6:27 PM
Tiny
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Finally had time to get the starter out. Fiancé is off having it bench tested and getting a new one. Hopefully that’s all it was and no more issues once it’s back in.

Notice some wear on the flywheel but hopefully I’m just over stressing about it and it’ll be fine.
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Sunday, March 6th, 2022 AT 4:18 PM
Tiny
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Starter was bench tested and passed. Back to square one.
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Sunday, March 6th, 2022 AT 6:06 PM
Tiny
JACOBANDNICKOLAS
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Hi,

If it passed the bench test, try switching the starter relay with a different one having the same part number. Maybe the relay is failing.

As far as the pics, they look normal. There is a little wear, but nothing to worry about. Is there any difference since the starter was reinstalled?

Joe
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Sunday, March 6th, 2022 AT 7:48 PM

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