No Crank, I'm baffled. - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 07-20-2009, 08:39 PM   #1
Newb
 
Join Date: Apr 2008
Posts: 3
No Crank, I'm baffled.

Alright I'm sorry to post another issue like this, but I'm not finding the answer I need with searches.

I have a stock 2000 TJ sport with the 4.0L and manual transmission. 186,000 miles and have owned it since new. Never had to replace anything in the starting system.

A couple weeks ago I started having an intermittent starting problem. About every 10-15 starts it would not crank. The instrument cluster would light up when the key was put to run, but would not crank when put to start. No matter what it did (twist the key harder, yell, curse, etc.) it would not crank.

So, I could push start it or get pissed off and go away. If I came back hours later it would start just fine. I installed a 20 amp fuse in fuse block behind glove box to defeat clutch interlock switch. So the damn thing starts fine for two weeks and then wont crank again. So...

Cleaned my battery cables and checked the connections to the PDU, ground, and starter. I replaced the starter relay in the PDU, still every 10-15 starts it wont crank. So I replaced the starter and still intermittent starts. So I replaced the starting switch in the steering column and I checked that nylon/plastic part that links the lock tumbler to the starting switch, which seemed fine. At this point it starts great for a couple days and then today nothing.

So as I'm yelling and cursing I'm slamming the clutch up and down and twisting the key and it starts. I had tested the clutch interlock defeat last week and it would start with the clutch out.

Does a manual transmission have Neutral Safety Switch? Can my clutch interlock switch break and the defeat not work? After my experience today I think this has something to do with the clutch interlock switch, but I'm a lame mechanic so I don't know. What have I missed? Keep me from kicking my dog and crying myself to sleep in the corner.

pilotjay is offline   Quote Quick Reply
Old 07-21-2009, 06:27 AM   #2
Jeeper
 
06jeep's Avatar
 
Join Date: Apr 2009
Posts: 56
Check or replace your neutral safety switch on your clutch..................

06jeep is offline   Quote Quick Reply
Old 07-21-2009, 09:55 AM   #3
Hacks off Parts while Lit
 
whitebuffalo's Avatar
 
Join Date: May 2005
Location: The Sandhills of South Texas
Posts: 2,290
why not just bypass the clutch safety switch for a week or two and see if that solves your problem? that will help narrow it down. mine has been bypassed for years. in fact, i used my starter to drag me across a parking lot to a gas pump when i ran out of gas one time
__________________
'90 YJ, ford 8.8, SOA, lincoln front, aussie rear, 4.88s, swampers.
whitebuffalo is offline   Quote Quick Reply
Old 07-21-2009, 10:27 AM   #4
Jeeper
 
Loic's Avatar
 
Join Date: Jun 2009
Location: LAS VEGAS
Posts: 794
Quote:
Originally Posted by whitebuffalo View Post
why not just bypass the clutch safety switch for a week or two and see if that solves your problem? that will help narrow it down. mine has been bypassed for years. in fact, i used my starter to drag me across a parking lot to a gas pump when i ran out of gas one time
where is that switch? i want to bypass it.
Loic is offline   Quote Quick Reply
Old 07-21-2009, 10:52 AM   #5
Newb
 
Join Date: Apr 2008
Posts: 3
If you are talking about the 20 amp fuse in the the #20 spot, I have done that and my Jeep would start with the clutch out. However, when I was pumping the clutch and twisting the key I got it to start. My question is, is there a Neutral Safety Switch on the transmission or is this for automatic transmissions only. If my clutch interlock is broken and I bypass it with the fuse, then should it not be the problem?
pilotjay is offline   Quote Quick Reply
Old 07-21-2009, 11:50 AM   #6
Jeeper
 
Join Date: Jun 2009
Location: Houston, TX
Posts: 57
Since the fuse bypasses the clutch safety switch, I would have to think that it starting while you were pumping the clutch is just a coincidence. It might very well have stared that time if you had not been pumping the clutch. Sounds like it might be a wire issue. Have you tried jumping the starter? Also, get someone to help you and have them turn the key while you listen to hear if the relay in the PDC makes a click when the key is turned to the start position. If it does then there is probably a problem with the starter or the wires going to it. If not then there is a problem farther up (i.e. from the ignition switch).
Mike Phifer is offline   Quote Quick Reply
Old 07-21-2009, 12:12 PM   #7
Newb
 
Join Date: Apr 2008
Posts: 3
Roger that, I'll give it a try. Thanks.
pilotjay is offline   Quote Quick Reply
Old 07-23-2009, 01:39 AM   #8
Jeeper
 
Join Date: Jan 2009
Location: Factoryville, PA
Posts: 383
Just a guess, try the ECU/PCM...my YJ had a semi-similar problem. Replaced the CPS, nothing. Replaced the Ignition Coil, nothing. Ended up needing a new computer, which wasn't too bad..$180+ some change, really easy to install.
Pylonpounder is offline   Quote Quick Reply
Old 07-25-2011, 11:01 AM   #9
Jeeper
 
Garlandxj's Avatar
 
Join Date: Jun 2011
Location: Garland
Posts: 171
search on the post stuck in a parking lot. I just went through it and am about to pick up the part today. Ignition actuator switch.. Stupid little part that goes between the ignition cylinder and the ignition switch. It tends to break and not allow the jeep to crank.

Garlandxj is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Good Crank w/o start, dead gages joepowles TJ Tech Forum 21 03-16-2013 04:12 PM
No crank, no start Mike Phifer TJ Tech Forum 4 07-18-2009 01:07 PM
jeep wont crank rebelBullDawg325 YJ Tech Forum 9 04-14-2009 01:41 AM
94 yj will crank but wont start Devil Doc YJ Tech Forum 1 08-09-2007 05:33 PM
Window Crank woes, did any one else have this problem? virtual_verve11 JK Tech Forum 2 04-07-2007 09:57 AM



» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 03:26 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC