'02 Liberty almost stalled. Ideas? - JeepForum.com

 
LinkBack Thread Tools
post #1 of 9 Old 11-12-2013, 10:26 AM Thread Starter
Jetplane19
Registered User
2002 KJ Liberty 
 
Join Date: Jan 2013
Location: Grand Rapids
Posts: 4
'02 Liberty almost stalled. Ideas?

Hi All, thanks in advance for your help.

'02 Liberty Sport 3.7L
137K, original owner

Last year it stalled for the first time, while slowly tooling around a parking lot, stopped, shifted into reverse, stall. Started back up fine.

Yesterday after 20min of city driving, came to a stop for 10 sec (still in Drive). Headlights & interiour lights dimmed. Engine almost stalled.
Shifted to park & problem went away.
Shifted to drive, problem returned.
Put it away in the garage overnight.

Today it started up & ran 100% fine, tooled around town a bit, then put a multimeter on the battery. 12.5V engine-off, and 14.4V engine running. Turned on lights & blower, goes down to 14.0V, then back up to 14.3V.

Any ideas where the gremlin might be?
Thanks!

Jetplane19 is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 11-12-2013, 10:57 AM
tjkj2002
Registered User
2002 KJ Liberty 
 
Join Date: Dec 2009
Location: Colorado
Posts: 8,385
Plugs? Ever clean the throttle body? Speedo work? Need more info.

'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case
tjkj2002 is offline  
post #3 of 9 Old 11-13-2013, 12:44 AM
Billwill
Registered User
2002 KJ Liberty 
 
Join Date: Jul 2007
Location: Hoedspruit, in the Bush, South Africa
Posts: 1,311
Fuel Filter clean?

2002 2.5 Export CRD Manual 5 speed.
Billwill is offline  
post #4 of 9 Old 11-13-2013, 12:42 PM
2007LIB
Registered User
2007 KJ Liberty 
 
Join Date: Sep 2013
Location: Ajax
Posts: 57
Throwing any trouble codes?

If it ain't broke don't fix it.....Enjoy it.
2007LIB is offline  
post #5 of 9 Old 11-13-2013, 07:25 PM
Chosw
Registered User
 
Join Date: Mar 2013
Posts: 92
Plugs are the first thing I would check.
Chosw is offline  
post #6 of 9 Old 01-08-2014, 02:13 PM Thread Starter
Jetplane19
Registered User
2002 KJ Liberty 
 
Join Date: Jan 2013
Location: Grand Rapids
Posts: 4
I want to follow-up this thread by explaining what was done to solve the issue.
Spark plugs were installed at a local shop a few years back during a 100K tuneup.

Today, Chrysler guys said the plugs are the wrong types (Autolite) and have the wrong gaps.
New plugs & tune-up.

Also, they discovered a faulty throttle position sensor & replaced it.

Thanks folks for your input on this.
Jetplane19 is offline  
post #7 of 9 Old 01-08-2014, 03:24 PM
tommudd
Registered User
2004 KJ Liberty 
 
Join Date: Aug 2008
Location: Central OH/ Kilimanjaro,Tanzania
Posts: 5,615
Glad you got it repaired
but you were over due on the plugs even if they were the right kind

04 KJ 4.5 JBA lift, 03 KJ 2.5 JBA coilovers,
tommudd is offline  
post #8 of 9 Old 01-08-2014, 06:48 PM Thread Starter
Jetplane19
Registered User
2002 KJ Liberty 
 
Join Date: Jan 2013
Location: Grand Rapids
Posts: 4
Hi tommudd,

Just to clarify - I had the plugs replaced about 4 years ago at 100K miles.
Today, Chrysler dealer replaced them at 134K miles. (my "137K" number at the beginning of this thread was wrong).
So.... it has been 4 years and 34K miles. Shouldn't *proper* plugs last longer than that?
Jetplane19 is offline  
post #9 of 9 Old 03-23-2014, 10:41 AM
kc2mrg
Web Wheeler
 
kc2mrg's Avatar
2004 WJ 
 
Join Date: Sep 2008
Location: Poca
Posts: 1,169
jeep usually recommends a 30k mileage replacement on spark plugs for the 3.7, they usually take an NGK copper plug, they run the best on them

2004 Grand Cherokee Laredo 4.0
Rusty's 2.5" coil/shock lift
265/70/16 General Grabber AT2's
Superchips 3875 Flashpaq
Flowmaster exhaust


West Virginia Jeep Club member
JEEPINWV.COM
kc2mrg is offline  
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.



Email Address:
OR

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.




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