Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum > 4.2l starting/idle problems

Join Wrangler Forum Today

Thread: 4.2l starting/idle problems Reply to Thread
Post Icons
You may choose an icon for your message from the following list:

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.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
08-30-2010 10:14 PM
Remove and clean the stepper motor and carb. Check your vacuum lines and make sure you don't have any leaks.
....then do the nutter bypass on it. The "Nutter" Bypass
08-30-2010 09:58 PM
4.2l starting/idle problems

I have an 89 with a 4.2L inline 6. It was running a little rough and had trouble with cold starts. and friend told me to clean carburator with carb cleaner and spray it in there while it was running. did that. and seemed fine that day.

but now, not only does it have trouble starting, but now it will not idle. even when hot.

i already changed fuel filte, new plugs and wires..but no luck. dies when i come to a stop.

any ideas?

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

All times are GMT -5. The time now is 07:32 AM.

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