3.7L V6 Misfire HELP! - 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 Liberty Forums > KJ Liberty Forum > 3.7L V6 Misfire HELP!

Grizzly Lockers available at Rockridge4wd.comThe ULTIMATE "Selectable" Locker System! BroughYukon Ultimate 35 axle kit for c/clip axles with Yukon Zip

Reply
Unread 03-03-2013, 01:26 PM   #1
Chris011887
Registered User
2003 KJ Liberty 
 
Join Date: Mar 2013
Location: Port Deposit, MD
Posts: 1
3.7L V6 Misfire HELP!

I have a 03 Liberty V6 3.7L and When I got it it had a Misfire on Cylinder 4.I just thought it needed a spark plug change no big deal it ran great.I changed all spark plugs and the Check Engine light went off and it ran like a dream.About a day and half later the light came back on.It now had a shake to it so I went out and got a replacement coil and put it in did not go away and the Light started blinking.Went to go put it into a garage to work on it with a friend and smelt something burning looked under the hood and the coil pack was melted in half I figured it might have been a faulty coil pack so I put the old one back in to get to the house and by the time I got there it had already started melting this coil pack.I checked the spark plug to see if it was fouled and it looks like it did when i put it in.I do not know what to do at this point as I dont have the money to put it in a shop and dont know alot about engine work has anyone else had this problem?Ive read alot about these engines breaking valve springs?

Chris011887 is offline   Reply With Quote Quick reply to this message
Unread 03-06-2013, 11:49 PM   #2
Durango_USMC
Registered User
2002 KJ Liberty 
 
Join Date: May 2010
Location: IN
Posts: 70
Check the spark gap on that plug, after that look for a short in the wiring or a bad ground. You can also check the resistance of the coil packs and see if its uniform. I wish I could be of more assistance.
Durango_USMC is offline   Reply With Quote Quick reply to this message
Reply

Tags
3.7l , liberty , missfire , valve spring

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






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.