When I turn key, battery gauge pegs, but engine doesn't turn over - JeepForum.com

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post #1 of 31 Old 12-14-2007, 09:34 AM Thread Starter
part.changer
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When I turn key, battery gauge pegs, but engine doesn't turn over

76CJ7

When I turn the key, my battery gauge pegs like it's pulling juice, but the engine doesn't budge.

Sometimes, if I roll the Jeep, it'll start after that.

What's the deal?

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post #2 of 31 Old 12-14-2007, 09:46 AM
JoonHoss
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sounds like the starter is hanging up or not engaging. does it do it all the time? (after it starts, will it start right up?).

Hoss

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post #3 of 31 Old 12-14-2007, 09:59 AM Thread Starter
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It does not do it all the time. I don't quite know what you mean by "after it starts, will it start right up?" But, I think that it is more likely to start if I had just before started it and turned it off, if that's what you're asking.

How do I cure a hanging starter?
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post #4 of 31 Old 12-14-2007, 10:02 AM
LSUtiger
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A parts store can check the starter if you take it to them.

1980 cj5 401, t-176, p/s., YJ p/b, tfi/hei hybrid, 3.73 30/44
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post #5 of 31 Old 12-14-2007, 10:09 AM Thread Starter
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OK. Let's say the starter is hanging but works occasionally. Is that fixable without replacement? If so, anyone know how?
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post #6 of 31 Old 12-14-2007, 10:19 AM
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Easier to replace. You've probably got a dead spot on the windings. Had an old chevy that would do this from time to time.

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post #7 of 31 Old 12-14-2007, 10:27 AM
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Quote:
Originally Posted by part.changer
How do I cure a hanging starter?
whack it with a BFH (seriously)

Hoss

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post #8 of 31 Old 12-14-2007, 10:40 AM Thread Starter
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I thought that comment was coming. Will do (seriously too).
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post #9 of 31 Old 12-14-2007, 11:04 AM
JeepHammer
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Didn't mean to insult you by trying to help...

Last edited by JeepHammer; 12-14-2007 at 02:08 PM.
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post #10 of 31 Old 12-14-2007, 11:14 AM Thread Starter
part.changer
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Quote:
Originally Posted by JeepHammer
What is a 'Battery Gauge'?
Do you have one of those 'Battery Minder' gauges that were popular a few years ago?
OR,
Do you mean an Ammeter? or Voltmeter?

Does the gauge let up when you let up on the key?

Do you hear a 'Click', 'Clunk' or hear the starter try and turn?

Does it happen EVERY time you try and start the engine, or just part of the time.

What engine do you have?
A battery gauge is the common term for a gauge that monitors a battery, whether it monitors amps or volts. A search for "battery gauge" in Google will explain more if you're actually confused and not being unnecessarily sarcastic and technical.

The gauge does let up when I let up on the key.

It only happens part of the time.

I have a 304V8.

Quote:
Originally Posted by JeepHammer
Since your engine stops in the same 2 or 4 places on the ring gear each time you kill the engine,
(Compression cycles actually stop the crank, and on a V-8, there are 4 four places your engine stops at every time, on an I-6, or I-4, there are Two.)

SO,
Your starter drive is probably binding with a bad spot on the ring gear, stopping the starter before it can spin the engine.

If you have a very old starter, you can add in very worn brushes and brush springs that don't allow the electrical current to reach the motor armature correctly,
bushings or bearings worn out and starter drive gear wear.

When you 'Rock' the vehicle, you loose the starter drive, and introduce it to a spot on the ring gear it normally doesn't 'see', and it can turn the engine from there.
Now that is a hard-core explanation, but I like it. I'll simmer on that one and try to do some research to conceptualize those words. Thanks, though.

Quote:
Originally Posted by JeepHammer
Remove starter and have it Inspected/Tested.
If it's very old, just replace with known good part.

Inspect the ring gear closely.
Rotate and use a file to clean up teeth that have been 'Hammered' on by the drive gear nose.

If the ring gear is in really bad shape, you should replace it also.
Will do.

Quote:
Originally Posted by JeepHammer
Low budget solution to ring gear problem.
If you have a manual trans, you can,
Clean up any teeth that are hammered on badly,
Remove the ring gear from the flywheel,
Turn it over, reinstall,
And reuse the clean tooth mating surface.

If you have an automatic,
Flex plates are cheap, get a new one.
Manual. I'll take the cheap route.

Quote:
Originally Posted by JeepHammer
Beating on a starter with a hammer does nothing except for ruin your trade in core, and increase your total expense for repair.
And vents frustration properly.
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post #11 of 31 Old 12-14-2007, 11:51 AM
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Quote:
Originally Posted by JeepHammer
Beating on a starter with a hammer does nothing except for ruin your trade in core, and increase your total expense for repair.
with respect to your expirience- it CAN get you home.

Hoss

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post #12 of 31 Old 12-14-2007, 12:38 PM
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Quote:
Originally Posted by part.changer
A battery gauge is the common term for a gauge that monitors a battery, whether it monitors amps or volts. A search for "battery gauge" in Google will explain more if you're actually confused and not being unnecessarily sarcastic and technical.

The gauge does let up when I let up on the key.

.
Well it's important if it's amps or volts pinning the gauge. Is this the factory volts gauge? Because it's not working as I expect it to. If it's an amp meter. then it's hooked up wrong.

What were you working on just befor it stopped working. Was every think OK or one start and failed the next?

My first thought is bad cables. but first, do you hear the starter solenoid going 'clunk'? no clunk and nothing is going to start your jeep.

Do you have a test light?
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post #13 of 31 Old 12-14-2007, 12:54 PM
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You have a dead short in your starter, replace it and be good to go.
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post #14 of 31 Old 12-14-2007, 01:32 PM Thread Starter
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Quote:
Originally Posted by John Strenk
Well it's important if it's amps or volts pinning the gauge. Is this the factory volts gauge? Because it's not working as I expect it to. If it's an amp meter. then it's hooked up wrong.

What were you working on just befor it stopped working. Was every think OK or one start and failed the next?

My first thought is bad cables. but first, do you hear the starter solenoid going 'clunk'? no clunk and nothing is going to start your jeep.

Do you have a test light?
I still don't see how knowing whether it's a volt-meter or ammeter has any relevance to fixing the problem of my Jeep not starting.

If it's a volts meter, how would you expect it to behave?
If it's an ammeter, what would this behavior tell you, specifically, about how it's not hooked up correctly?

Everything was OK on one start, and it failed the next.

I do not hear the starter solenoid going clunk until it finally clanks.

I have a test light.
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post #15 of 31 Old 12-14-2007, 01:58 PM
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Well, if your meter is going to "0" and it is a volt meter it means that something (your starter) is drawing lots of current. If it is an amp meter wired correctly and it goes to "0" it means no current is being drawn from the battery. If it goes to '0" and current is being drawn from the battery it is wired wrong.

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