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Unread 09-09-2010, 11:09 AM   #1
SBTlauien
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'93 Jeep Cherokee will not start

My 1993 Jeep Cherokee 4.0 6 cyl. will not turn over. The check engine light isn't on. All lights work. It has a new battery and altenator.

When I turn the key to start it, the temp gauge rises as usual but it doesn't even try to turn over.

A few days ago I noticed when starting it, that it was just barly turning over. Could it be a spark plug?

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Unread 09-09-2010, 11:40 AM   #2
callmebobbyt
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a spark plug wouldnt cause it to not turn over. check your starter, make sure its got power. the solenoid could be bad and you may need to replace the starter assy.
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Unread 09-09-2010, 12:01 PM   #3
Mikeand
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Check your connections to/on the starter. Take the cables off the starter and clean the cable ends and the starter posts.
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Unread 09-18-2010, 02:29 AM   #4
deimos_barret
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check you battery terminal connections too. there was another thread similar to this and i've had those same symptoms in other cars due to a loose negative cable.
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Unread 09-18-2010, 07:05 AM   #5
tjwalker
It's the crank sensor!
 
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1. Connections are suspect. Remove battery cables and clean those and the battery posts until they are SHINY.

2. Try wiggling the shift lever when you crank it or try starting it in neutral. If either of these techniques work, you probably have a problem with the NSS (neutral safety switch). SEARCH

3. If it cranks over, but slowly. Load test the battery (yes, I know it is newer but they can fail too) and if that checks out, then put a meter on the starter itself. If you have approx. full battery voltage at the starter with the key in the ON position, then the starter is suspect. If you don't have full battery voltage, then you need to start working your way back into the engine bay to find out why.

Let us know what you find!
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Unread 09-18-2010, 12:38 PM   #6
dukie564
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jesus we really need a comprehensive sticky on this, maybe i'll make one up later this weekend.

I'll add to what TJwalker has started...

4. Remove the trigger wire running to the started solenoid, attach a multimeter to the wire and to battery -. Check for voltage when you crank the engine. Yes = starter connection or starter/solenoid bad.

5. Put one end of multimeter on starter post, one end on engine block (ignition "on") - if no voltage, you need to remove the starter and clean the contact surfaces between the starter and the engine block. I had this problem and this solved it (starter was not getting a good ground to the block)

6. Check starter relay for proper operation and voltage (search)
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Unread 09-19-2010, 11:49 AM   #7
SBTlauien
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After making my initial post, I tapped a wrench on the starter, turned the key, and it started fine. It was starting alright until now. It was starting a little slow...kind of a weak turning over. It's not starting now unless I tap the starter with a wrench or hammer.

The last time my starter was going out(about 5 years ago), I remember that tapping on the starter would solve the problem.

There is an oil leak that leaks oil onto the starter.
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Unread 09-19-2010, 05:12 PM   #8
tjwalker
It's the crank sensor!
 
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Quote:
Originally Posted by SBTlauien View Post
f It's not starting now unless I tap the starter with a wrench or hammer.
Replace your starter........
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Without "data", all you have is an opinion!
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Unread 09-19-2010, 11:22 PM   #9
SBTlauien
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I replaced the starter and it starts fine now. Thanks everyone.
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Unread 09-20-2010, 06:10 PM   #10
tjwalker
It's the crank sensor!
 
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Another happy Jeep Forum ending!
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Unread 12-14-2011, 11:56 AM   #11
natecutlip212
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my jeep is doing the same thing but i replaced the battery i replaced the starter too and when i trun the key nothing happens
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Unread 01-31-2012, 03:46 PM   #12
msgvas61
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i'm in the same boat, no start, no gauges, just the lights and the beeping noise when the key is in and the door is open. I had the CPS replac ed and it runs fine but the ignition cylinder locked up the other day so i took it apart got it unlocked. turn the key and nothing. i can get it to crank but not start, with a screw driver on the starter. I'm lost any ideas out there.
New to the forum but i'm original owner of thie 1999 cherokee and refuse tro get rid of it. 196000 miles and still going if i can start it.
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Unread 01-31-2012, 04:34 PM   #13
tjwalker
It's the crank sensor!
 
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Quote:
Originally Posted by msgvas61 View Post
i'm in the same boat, no start, no gauges, just the lights and the beeping noise when the key is in and the door is open. I had the CPS replac ed and it runs fine but the ignition cylinder locked up the other day so i took it apart got it unlocked. turn the key and nothing. i can get it to crank but not start, with a screw driver on the starter. I'm lost any ideas out there.
New to the forum but i'm original owner of thie 1999 cherokee and refuse tro get rid of it. 196000 miles and still going if i can start it.
Start a new thread. It is less confusing and will provide you with more accurate answers; people don't want to wade through an old thread for a new problem.
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Without "data", all you have is an opinion!
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