1990 YJ starting problem! - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > 1990 YJ starting problem!

Rockridge 4WD IS Taking Zone Offroad Suspension Lift Kits ZONE 4.25" combo lift for TJ available at Rockridge4wG2 Disc Brake Conversion Kit for Jeep Wrangler YJ TJ LJ Ch

Reply
Unread 03-06-2010, 12:02 PM   #1
YJ_Dan
Registered User
1990 YJ Wrangler 
 
Join Date: Mar 2008
Location: Colts Neck, NJ
Posts: 25
1990 YJ starting problem!



I replaced the starter in my YJ because when I turn the key I get one click and nothing else? So I replace the starter and same thing?????

Any ideas what I should check next?

YJ_Dan is offline   Reply With Quote Quick reply to this message
Unread 03-06-2010, 12:25 PM   #2
pman
Web Wheeler
 
pman's Avatar
1988 YJ Wrangler 
 
Join Date: Aug 2005
Location: Charleston, SC
Posts: 1,270
Have you checked battery voltage and connections??
__________________
88 Wrangler Laredo 258-999-NP231
81/76 CJ5 304-t150-Spicer 20
82 Wagoneer 360-727-NP208
82 CJ8 Scrambler 258-t5-Dana 300
http://www.jeepforum.com/forum/f8/cj...-lulu-1350563/
pman is offline   Reply With Quote Quick reply to this message
Unread 03-06-2010, 12:40 PM   #3
YJ_Dan
Registered User
1990 YJ Wrangler 
 
Join Date: Mar 2008
Location: Colts Neck, NJ
Posts: 25
I don't think it's the battery everything else works, even tried jumping it to make sure. Would it be the ICM if when I turn the key I only get one click and the starter won't turn?

Plugs, wires, distributor are all about a year old.

It would not start intermittently and now nothing?
YJ_Dan is offline   Reply With Quote Quick reply to this message
Unread 03-06-2010, 01:27 PM   #4
pman
Web Wheeler
 
pman's Avatar
1988 YJ Wrangler 
 
Join Date: Aug 2005
Location: Charleston, SC
Posts: 1,270
Dan-

I would still pull your batt. cable connections, clean them for good measure, and replace. Many times it's the simplest things that cause problems (ask me how I know!!). Your battery can measure 12v and if the battery cable connections are poor, you can have similar problems.

The Ignition modules on the 4.2L rigs are notorious for crapping out (I'm on my 3rd one). My personal experience with ICM problems has just been loss of fire to the coil (engine will turn over but never start and won't receive juice to the coil). Still could be a possibility, as I believe the ICM on your 4cyl is different than mine.

In your last sentence, you say "It would not start intermittently"...does this mean it always started right up, or did you mean to say "It would start intermittently"?

Did you have the original starter bench tested? I'd still check for proper power to the starter before moving on.
__________________
88 Wrangler Laredo 258-999-NP231
81/76 CJ5 304-t150-Spicer 20
82 Wagoneer 360-727-NP208
82 CJ8 Scrambler 258-t5-Dana 300
http://www.jeepforum.com/forum/f8/cj...-lulu-1350563/
pman is offline   Reply With Quote Quick reply to this message
Unread 03-06-2010, 01:46 PM   #5
YJ_Dan
Registered User
1990 YJ Wrangler 
 
Join Date: Mar 2008
Location: Colts Neck, NJ
Posts: 25
It used to start fine and once in a while this would happen. But it would eventually start. I'm going to bring the starter and ICM down to have it bench tested.
YJ_Dan is offline   Reply With Quote Quick reply to this message
Unread 03-06-2010, 01:54 PM   #6
pman
Web Wheeler
 
pman's Avatar
1988 YJ Wrangler 
 
Join Date: Aug 2005
Location: Charleston, SC
Posts: 1,270
Ahhh...hmmm. I think you're doing the right thing by taking both parts to have them tested, then. I know on one occassion my ICM would give me intermittent problems (literally would kill my engine while riding down the road, then would take a few minutes to crank back up) before finally giving up the ghost.

I hope I don't sound like I'm questioning your intelligence, but I really would pull the battery cables off, clean and reinstall. It can't hurt. Keep us posted.
__________________
88 Wrangler Laredo 258-999-NP231
81/76 CJ5 304-t150-Spicer 20
82 Wagoneer 360-727-NP208
82 CJ8 Scrambler 258-t5-Dana 300
http://www.jeepforum.com/forum/f8/cj...-lulu-1350563/
pman is offline   Reply With Quote Quick reply to this message
Unread 03-06-2010, 02:09 PM   #7
YJ_Dan
Registered User
1990 YJ Wrangler 
 
Join Date: Mar 2008
Location: Colts Neck, NJ
Posts: 25
That's what I'm going to do in a minute, parts store closed for the day. I'm open to any and all suggestions, so no worries.
YJ_Dan is offline   Reply With Quote Quick reply to this message
Unread 03-06-2010, 03:37 PM   #8
YJ_Dan
Registered User
1990 YJ Wrangler 
 
Join Date: Mar 2008
Location: Colts Neck, NJ
Posts: 25
Ok, so I jumped both starters I have and nothing. I bypassed the solenoid (spelling?) and both engaged and spun. So i have to go buy a new solenoid and will sell the other starter with the stipulation that it needs a solenoid, unlike they guy who sold me his.
YJ_Dan is offline   Reply With Quote Quick reply to this message
Unread 03-09-2010, 04:06 PM   #9
YJ_Dan
Registered User
1990 YJ Wrangler 
 
Join Date: Mar 2008
Location: Colts Neck, NJ
Posts: 25


I had my ICM tested today and it is shot, so hopefully that will do it. Now on to find one that isn't $150.

Thanks for the help everyone.
YJ_Dan is offline   Reply With Quote Quick reply to this message
Unread 03-09-2010, 04:48 PM   #10
giggityjeeper
Registered User
1990 YJ Wrangler 
 
Join Date: May 2007
Location: British Columbia
Posts: 4,024
for future reference if your starter is toast you wont even get a click..unless it has a dead spot, but you will notice that as it will prolly graon..
__________________
Started with some rust repairs ended in a SOA...

http://www.jeepforum.com/forum/f12/h...-jeep-1050879/

family roll bar swap/upgrade..

http://www.jeepforum.com/forum/f12/f...grade-1054753/

1990 YJ. SOA, OME 36R 3.5" lift springs, OME 5/8 greasable shackles, OTT high steer, Custom cage, team Rush, Posi, 33 TSL swampers
giggityjeeper is offline   Reply With Quote Quick reply to this message
Unread 03-09-2010, 06:08 PM   #11
YJ_Dan
Registered User
1990 YJ Wrangler 
 
Join Date: Mar 2008
Location: Colts Neck, NJ
Posts: 25
Cool thanks.
YJ_Dan is offline   Reply With Quote Quick reply to this message
Unread 04-01-2010, 12:19 PM   #12
YJ_Dan
Registered User
1990 YJ Wrangler 
 
Join Date: Mar 2008
Location: Colts Neck, NJ
Posts: 25
I had the ICM tested and it was bad. Spent $110 for a new one and still nothing? I'm thinking it might be the coil but am having a hard time finding a place to bench test it. Any ideas?
YJ_Dan is offline   Reply With Quote Quick reply to this message
Unread 04-01-2010, 01:26 PM   #13
Uberjeep
Registered User
1989 YJ Wrangler 
 
Join Date: Nov 2007
Location: BC Canada
Posts: 230
Quote:
Originally Posted by YJ_Dan View Post
I had the ICM tested and it was bad. Spent $110 for a new one and still nothing? I'm thinking it might be the coil but am having a hard time finding a place to bench test it. Any ideas?
I have a 91 4.0 that uses the crank position sensor (on the bellhousing), and the cam position sensor(on the distributor) to activate the ICM. Had an issue with a bad connection to the CPS that resulted in the same condition. Any idea if your motor has both of these sensors? I have no experience with 4.2's to know, but maybe worth a check?
__________________
Quote:
Originally Posted by 2003Rubi View Post
Make sure you get a sticker that says "Jeep" in Japanese lettering, that mod is good for about 20-25 hp right there.
My Jeep has only ever killed three things. A deer, a dog, and my wallet.
*retired* Low Output Jeep Club # 135
Uberjeep is offline   Reply With Quote Quick reply to this message
Unread 04-01-2010, 03:39 PM   #14
88YJtoCJ
Registered User
1988 YJ Wrangler 
 
Join Date: May 2009
Location: Sarasota, FL
Posts: 260
is that FI or Carb'd... I would say check your ground cables, especially for the starter and coil.

Also, have you thought about replacing the ignition switch?
88YJtoCJ is offline   Reply With Quote Quick reply to this message
Unread 04-01-2010, 05:51 PM   #15
tonylax48
Registered User
1990 YJ Wrangler 
 
Join Date: Jun 2009
Location: NJ
Posts: 201
i had this same problem there is a connection that is bad ill run out and snap a pic of it for you.
__________________
1990 YJ 4.2L, auto, HEI, Weber 34, d30 4.11 w/ spartan locker, ford 8.8 4.11 open, sye, 4in RC 2in BL
tonylax48 is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
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


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.