Ignition issues. CJ7 won't start. - JeepForum.com
LinkBack Thread Tools
post #1 of 6 Old 10-02-2013, 11:57 AM Thread Starter
Registered User
1993 YJ Wrangler 
Join Date: Oct 2012
Location: Littleton
Posts: 12
Ignition issues. CJ7 won't start.

My 86 CJ7 has decided to give me another headache. Driving it the other day my wife stalled it and couldn't get it going again. When I got there, there was no response at all when turning the ignition on. No noise, no click, nothing. Hooked it up to jumpers and it fired right up. Drove it a few times and then today it happened to me in the driveway (thankfully). It started at first but then I turned it off for a second and tried it again. Nothing. I noticed that when switched to "Accessory" I have power to the radio, cig lighter and clock. When I switch it to "On/Ignition" the I lose all power, put it in "Off/Lock" and the clock still runs. Open to suggestions. I'm pretty sure the battery and Alternator are ok but who knows. Thanks in advance!

copeakbagger is offline  
Sponsored Links
post #2 of 6 Old 10-02-2013, 04:52 PM
Registered User
1985 CJ7 
Join Date: Jul 2010
Location: The Mojave Desert - Palmdale, Ca. U.S.A.
Posts: 6,786
How old is the battery?
Pull the alt. out and have it load tested for amps.
Also(after charging)have the battery load tested.
You'll have to take it to a shop to have this done 'rite'.
Volts mean nut'n here. Amps are where it's at.

Have'n you along, is like loose'n 2 good men
LumpyGrits is offline  
post #3 of 6 Old 10-02-2013, 08:37 PM
Corripe Cervisiam
Ken4444's Avatar
1985 CJ7 
Join Date: Oct 2005
Posts: 7,023
Originally Posted by LumpyGrits View Post
Volts mean nut'n here. Amps are where it's at.
x2. Volts is nothing more than a measurement of electrical potential. 0 volts is no potential, 600 is a lot of potential.

Amps, or amperes, is the literal amount of electrons passing a point in a given amount of time.

It is certainly possible that the battery has enough amps to operate the radio but not enough to turn the starter.

As suggested, I'd have your battery tested first. If that's good, have the alternator tested.

"I give you a republic, if you can keep it." - Benjamin Franklin
Ken4444 is offline  
post #4 of 6 Old 10-02-2013, 08:48 PM Thread Starter
Registered User
1993 YJ Wrangler 
Join Date: Oct 2012
Location: Littleton
Posts: 12
I checked and the battery is actually 3yrs old so you may be right (I'm getting my jeeps mixed up). Plus my wife flooded it after she stalled so she may have drained it. Just like me to try to make the simple problems more complicated. I'm leaving town for a few days and will have to check it out next week. Thanks
copeakbagger is offline  
post #5 of 6 Old 10-02-2013, 08:57 PM
Registered User
1981 CJ7 
Join Date: Jul 2009
Location: Bali
Posts: 5,836
Could equally be the battery cables and clamps or connection of cable to solenoid or engine block. A corroded connection at the clamp or insecure clamp would give this kind of behaviour as soon as you tried to put a heavy load on it, sometimes working and sometimes not.

If the battery is fine if you can load it up for say 20 seconds and the voltage remains above 10.6 Volts. Any less and it is crapolaed. What does your voltmeter say? (Dash gauges are unreliable but best you have)

BagusJeep lives in Bali.

1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1951 Willys CJ3A/MB/M38 - Little Willy
1995 Cherokee 4.0 - CHEROKEE
BagusJeep is offline  
post #6 of 6 Old 10-07-2013, 07:36 PM Thread Starter
Registered User
1993 YJ Wrangler 
Join Date: Oct 2012
Location: Littleton
Posts: 12
Ok, simple solution to a simple problem. Got home from my trip tested the battery and yep... bad on Amps. Put a new one in and she fired right up. Now on to my next problem I discovered immediately after starting it up. I'll start a new thread for it and will again welcome any help. Ugh! I love owning Jeeps.
copeakbagger is offline  

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail 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.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

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 On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome