Bypass bad starter solenoid? - 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 CJ Forum > Bypass bad starter solenoid?

ANOTHER Rockridge4wd Creation!! Spare Tire Carrier Delete ROCKRIDGE4WD Introduces a NEW Jeep Wrangler JK *led* tail Engo winches available at www.rockridge4wd.com! Free shipp

Reply
Unread 01-28-2009, 10:52 PM   #1
SeaWulf
Registered User
1983 CJ7 
 
Join Date: Dec 2008
Location: , Colorado
Posts: 994
Bypass bad starter solenoid?

I believe that my starter solenoid has gone bad. Before I replace it I want to be sure its bad. The battery drains in an hour and there is a soft buzz coming from the pass side engine bay. The starter gets power, but not enough to turn over the engine, thus leading me to believe its the solenoid. (already replaced the starter)

Anyway,

Can I bypass the starter solenoid to start the engine?

SeaWulf is offline   Reply With Quote Quick reply to this message
Unread 01-29-2009, 12:08 AM   #2
JeepHammer
Running On Empty...
1973 CJ5 
 
Join Date: Aug 2007
Location: South West Indiana
Posts: 10,445
I'd say starter relay (solenoid) switch.

The Relay is supposed to break the connection clean when you let off the key, but if things go wrong inside.... Who knows!
JeepHammer is offline   Reply With Quote Quick reply to this message
Unread 01-29-2009, 03:36 AM   #3
John Strenk
Moderator
 
John Strenk's Avatar
1976 CJ5 
 
Join Date: Feb 2005
Location: Shalersville Ohio
Posts: 13,160
I use to use the old "Pliers" trick to bypass the relay but it gets exciting with sparks flying and big divots in your pliers handle.

A lot of times the battery cables have corroded to the extent they supply enough power to activate the solenoid but not enough to turn over the engine. I have to change cables evey few years on my CJ because of all the salt I play in.

You could measure the voltage across each cable to identify the bad one. (A resistance check wont work in this case unless your ohm meter uses 20 amps to measure the resistance ) or just pick up a set of new cables. 3ea.
John Strenk is offline   Reply With Quote Quick reply to this message
Unread 01-29-2009, 07:52 AM   #4
SeaWulf
Registered User
1983 CJ7 
 
Join Date: Dec 2008
Location: , Colorado
Posts: 994
Quote:
Originally Posted by John Strenk View Post
or just pick up a set of new cables. 3ea.
I already tried a new battery, starter, and cables, that's why I asked about the starter solenoid.
SeaWulf is offline   Reply With Quote Quick reply to this message
Unread 01-29-2009, 08:18 AM   #5
seagrave
Registered User
1997 TJ Wrangler 
 
Join Date: Jun 2008
Location: Baltimore, Maryland
Posts: 108
It does not hurt to replace the starter solenoid. I just replaces mine last night for about $10 new.
seagrave is offline   Reply With Quote Quick reply to this message
Unread 01-29-2009, 08:26 AM   #6
SeaWulf
Registered User
1983 CJ7 
 
Join Date: Dec 2008
Location: , Colorado
Posts: 994
Can I get a picture of the solenoid showing which two posts to short? I just want to be sure I get it right
SeaWulf is offline   Reply With Quote Quick reply to this message
Unread 01-29-2009, 11:50 AM   #7
John Strenk
Moderator
 
John Strenk's Avatar
1976 CJ5 
 
Join Date: Feb 2005
Location: Shalersville Ohio
Posts: 13,160
Oh you can't miss it.
Just the two biggest post with the biggest cables going to them.

Just make sure your not in gear before you short them together.
John Strenk is offline   Reply With Quote Quick reply to this message
Unread 01-29-2009, 12:31 PM   #8
479AZ
Registered User
1978 CJ7 
 
Join Date: Jan 2008
Location: Tucson, AZ
Posts: 194
If you jump power from the battery side of the solenoid to the small terminal closest to the front of the vehicle that should engage the solenoid. Inside it's just an elctromagnet that closes a big contact. If you jump across both large terminals you need to use a heavy cable since it will carry the total amperage needed to spin the starter. The other way just closes the switch.
479AZ is offline   Reply With Quote Quick reply to this message
Unread 01-29-2009, 06:57 PM   #9
SeaWulf
Registered User
1983 CJ7 
 
Join Date: Dec 2008
Location: , Colorado
Posts: 994
thanks for the tips guys!

Unfortunately I won't have a chance to look at the jeep again for a few day.
SeaWulf is offline   Reply With Quote Quick reply to this message
Unread 01-29-2009, 09:28 PM   #10
mcurcio1989
Registered User
1976 CJ7 
 
Join Date: Jan 2009
Location: Toledo, ohio
Posts: 456
I am not sure if you live near any auto zones but I picked up a rebuilt stater for 20 dollars after the core return. They also have a life time warranty for about ten dollars so basically I'm set for life for thirty dollars. It's almost unbelievable. I would recomend just putting a new or rebuilt starter in i tant hurt and for 20 dollars its almost not worth the time of trying to verify that it is the starter. Just a thought. . .
mcurcio1989 is offline   Reply With Quote Quick reply to this message
Unread 01-29-2009, 10:11 PM   #11
SeaWulf
Registered User
1983 CJ7 
 
Join Date: Dec 2008
Location: , Colorado
Posts: 994
Quote:
Originally Posted by mcurcio1989 View Post
I am not sure if you live near any auto zones but I picked up a rebuilt stater for 20 dollars after the core return. They also have a life time warranty for about ten dollars so basically I'm set for life for thirty dollars. It's almost unbelievable. I would recomend just putting a new or rebuilt starter in i tant hurt and for 20 dollars its almost not worth the time of trying to verify that it is the starter. Just a thought. . .
First thing I did along with a new battery and cables.
SeaWulf is offline   Reply With Quote Quick reply to this message
Unread 03-03-2012, 09:22 PM   #12
klr650
Registered User
 
Join Date: Mar 2012
Location: richmond hill, ga
Posts: 1
[QUOTE=SeaWulf;6464095]First thing I did along with a new battery and cables.[/QUO

sounds like it could be the voltage regulator check on that
klr650 is offline   Reply With Quote Quick reply to this message
Unread 07-11-2013, 12:25 AM   #13
Millerlite13
Registered User
 
Join Date: Jul 2013
Location: Mason, Mi
Posts: 1
Really?

Ok man it's not what you think it is, really surprised no one has told you it's your alternator. Easy to check
1: get it runnin
2: disconnect the battery.
If it dies ,its the alternator. If you hear a clicking when you start it that mean the solenoid is ok and doing its job.
Millerlite13 is offline   Reply With Quote Quick reply to this message
Unread 07-11-2013, 04:36 AM   #14
BagusJeep
Web Wheeler
 
BagusJeep's Avatar
1981 CJ7 
 
Join Date: Jul 2009
Location: Bali, Indonesia
Posts: 4,628
Quote:
Originally Posted by Millerlite13 View Post
Ok man it's not what you think it is, really surprised no one has told you it's your alternator. Easy to check
1: get it runnin
2: disconnect the battery.
If it dies ,its the alternator. If you hear a clicking when you start it that mean the solenoid is ok and doing its job.
I think in the last 4 years he may have fixed it.
__________________
BagusJeep lives in Bali, the Land of Temples.
With a Jeep every prayer counts.

1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1995 Cherokee 4.0 - CHEROKEE
BagusJeep is offline   Reply With Quote Quick reply to this message
Unread 07-11-2013, 10:43 AM   #15
texas1al
Registered User
1984 CJ7 
 
Join Date: Mar 2013
Location: Arlington, VA
Posts: 62
Be careful, a bad solenoid can eat up ignition modules if it's stuck. Might be a good idea to replace it soon.
texas1al 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.