Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > General Jeep Discussions > General Jeep Discussion > Interesting - and cautionary - experience with fuel system

Join Wrangler Forum Today


Thread: Interesting - and cautionary - experience with fuel system Reply to Thread
Title:
  
Message:
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:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
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.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
06-30-2013 08:53 AM
PeteH
Interesting - and cautionary - experience with fuel system

On my 2000 Wrangler (4.0, auto, mainly a road car)... normal highway mileage with the hardtop on is 19+ (never quite broke 20).

A few weeks back, it started cranking a bit longer when starting. Not much, it just didn't fire on the first couple of turns. I figured "dirty injector, or some water in the gas" and poured in a can of cleaner.

Then I took the Jeep on a 300-mile round trip to pick up a camper. On the way out, without the trailer, the mileage was 23.4 and I figured "tailwind". On the way back, I thought the Jeep was a little sluggish, but that was because I was towing 1000+ pounds. Mileage on the return was 17, what I generally get around town. OK, happy time.

Next morning the thing barely started at all, so I brought it to my mechanic (local independent guy). OB reader said low fuel pressure, lean mixture, and Cyl.#2 missing fire. Fuel pressure at idle was 29 psi, book calls for 49. Long and short of it, I had a dying fuel pump.

SO... the moral of the story is, if you notice a sudden increase in fuel mileage, get ready to replace the fuel pump (and the filter, and the regulator, since they're all in one unit inside the tank).

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 05:24 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC