Slow start now no start . - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on
Old 05-15-2011, 07:00 PM   #1
Join Date: Mar 2010
Location: Oakland. Ky
Posts: 361
Slow start now no start .

Started Friday fine . Saturday turn key and was slow crank yet started up . I thought was battery going weak . Later that day same thing . Sat night it acted like was gonna start yet didn't then acted like dead battery , turn key and click .
Already had wife pick up new battery so I waited for her to bring it up me .
Whild waiting a buddy saw me and said he would jump my batt . We tried right away and just click . Waited 30 min while we ate , then same thing .
Wife was still hour away so we push my jump to start it .then I drove it home . Alt is charging fine .
Got home tried to start and just click . Put new battery in and same thing .
So this morning I pull the starter and use jumper cable to check it . All seems good , yet took it to Advace auto then Oriely and they both agree it's good .
I cleaned cables ( they all new anyways 6 month old ) put starter back in and same thing .
What's the thing on the firewall ? Relay ? How to I test that ? And how much they run ? Any upgrade for it. Incase that's it ?


VoodooShot is offline   Quote Quick Reply
Old 05-15-2011, 07:24 PM   #2
Wrangler Haven's Avatar
Join Date: Jun 2010
Posts: 310
Starter relays do have moving contact points inside that can wear out. I would start there with a new one. You can't really test them effectively. Also, if you have a test light hook it up to the wire going to the starter solenoid and have a buddy turn the key to the crank position. Since we already know the starter is good. We need to start from the solenoid and work backwards.

Wrangler Haven is offline   Quote Quick Reply
Old 05-15-2011, 07:47 PM   #3
Join Date: Mar 2010
Location: Oakland. Ky
Posts: 361
Ok Ty . It'll be Friday when I get back home I'll pick up new one and do that then.
VoodooShot is offline   Quote Quick Reply
Old 05-15-2011, 10:57 PM   #4
CMEvans79's Avatar
Join Date: Oct 2009
Location: Granite City, IL
Posts: 3,391
I'm having battery problems too, but I haven't had anything tested ... sucks being stuck on a Sunday night, nothing's open ... commenting to follow the post. Good luck Voodoo
CMEvans79 is offline   Quote Quick Reply
Old 05-16-2011, 10:51 PM   #5
Bren88's Avatar
Join Date: Sep 2010
Location: San Francisco
Posts: 66
i had pretty much the same thing on thursday night trying to get home from college, jump start did not work, ended up being my starter solenoid. you could try hitting the starter with something heavy. test the starter relay by placing one of the other ones that is the same in its place and see if it starts. I picked up a refurbished starter from kragen 70 bucks easy install and fixed everything. Hope it works out for ya!
Bren88 is offline   Quote Quick Reply
Old 05-17-2011, 01:01 PM   #6
Join Date: Mar 2010
Location: Oakland. Ky
Posts: 361
Thnx guys . It's not the starter I tested it as good , and so did 2 parts stores . Not battery , so Friday night I'll figure the wires out and just put in a new relay .35$ for peace of mind works for me .
I've already did new ignition switch ( and diff steering column ) .
Worse case I'll do a push button
VoodooShot is offline   Quote Quick Reply
Old 05-17-2011, 02:36 PM   #7

WF Supporting Member
jk'n's Avatar
Join Date: Jan 2009
Location: First Quadrant in the Land of the Free
Posts: 4,790
Originally Posted by VoodooShot View Post
Ok Ty . It'll be Friday when I get back home I'll pick up new one and do that then.
If it sounds like a low battery but the battery isn't low (since it has been replaced) then the voltage reaching the starter solenoid coil (mounted right on the starter) isn't enough to pull the solenoid in. Since you described clicking noises, I suspect low voltage to the solenoid coil. Measure on the small terminal to ground while someone attempts to start it. It should measure near 12 volts. If it doesn't, then the first suspect is the starter relay circuit mainly the contacts on the starter relay. If you are not able to locate the starter relay, perhaps a typical mechanics book will zero you in on where it is located but it typically is on the fire wall. This is an inexpensive device to replace if you just want to shotgun it to test if it is the problem.

Participate in life....Keep movin'....Go there....JK'n it.........Do it! Jeep #1: Red Rock 08 JK Rubicon 4dr, 6 sp manual, Stock Mud Tires, MyGIG Upgrade, Hard Top, after sale BestTop SunRider Soft Top, Congo Cage Rack, Mopar slush mats Jeep #2 Black 08 JK Rubicon 2dr, 6 sp manual, both tops, some chrome...uggg (my wife's jeep) Jeep #3 White 92 YJ (my son's jeep) A great quote from a good friend: "All hail click clack and master jk'n." Click and clack are my idols!
jk'n is offline   Quote Quick Reply
Old 05-17-2011, 08:12 PM   #8
Join Date: Mar 2010
Location: Oakland. Ky
Posts: 361
Ty .

Ya I found the relay Sunday . I just didn't know it was called starter relay .
I just cleaned all the wires I could find in between starter/battery . They was all new just covered in oil ;$) . Relay looked old so I'm hoping that's it . I don't wanna pull the ignition switch again .
VoodooShot is offline   Quote Quick Reply
Old 05-20-2011, 10:10 PM   #9
Join Date: Mar 2010
Location: Oakland. Ky
Posts: 361
Well changed relay , tested all wires , still nothing . Went got new starter anyways . And all is fine . Took old starter to a buddy , because I tested it fine along with 2 parts stores .
He tested and said wad bad . It wasn't turning strong enough . Go figure .

VoodooShot is offline   Quote Quick Reply

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


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
Will not start ssgggtom YJ Tech Forum 2 05-10-2010 12:10 PM
Jeep wont start.. Kodysteeler43 TJ Tech Forum 0 05-06-2010 01:30 PM
01 won't start Jeepguy TJ Tech Forum 1 03-01-2010 01:15 PM
Turns But Won't Start... Not an easy answer Cryptos TJ Tech Forum 18 06-25-2009 08:12 AM
Help! My YJ won't start 93YJowner YJ General Discussion Forum 5 05-20-2006 12:17 PM

Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 04:34 PM.

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