Exhaust problem? - JeepForum.com

 
LinkBack Thread Tools
post #1 of 4 Old 12-08-2011, 02:55 PM Thread Starter
gloaming
Registered User
1996  
 
Join Date: Oct 2011
Location: Albuquerque
Posts: 19
Exhaust problem?

I've been having another problem with my '96 Jeep Grand Cherokee Laredo since replacing my PCM last week. About ten days ago, my Jeep backfired (which it did often until I replaced the PCM) and suddenly the engine noises were EXTREMELY loud. It sounds almost like a jet taking off when I accelerate, and there seems to be loss of power. Could there be an exhaust leak somewhere? Thanks!

gloaming is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old 12-08-2011, 03:40 PM
Fishsammich
Registered User
 
Join Date: Nov 2011
Location: Elkhart
Posts: 6
Yes backfire and after-fire create an amazing amount of excess pressure on an exhaust system and 1 or more of these can and will destroy the exhaust system.

Almost all vehicles '90 give or take and newer are quite sensitive to exhaust leaks, lose of back pressure, o2 sensors not coming up to or maintaining temperature and sending the ECU into a fault mode that allows the vehicle to run rich (a little extra fuel for the same amount of air) for over heat protection and the fuel economy and power suffer.

Not to mention the CO2 and other noxious gasses that might find a way into the interior space is amplified,,,
VERY UNHEALTHY. GET YOUR EXHAUST inspected and fixed asap
Fishsammich is offline  
post #3 of 4 Old 12-08-2011, 03:56 PM Thread Starter
gloaming
Registered User
1996  
 
Join Date: Oct 2011
Location: Albuquerque
Posts: 19
Thanks for the reply!
gloaming is offline  
post #4 of 4 Old 12-08-2011, 04:13 PM
JasonStebbins
Registered User
1997 ZJ 
 
Join Date: Jan 2009
Posts: 3,138
The jet taking off and loss of power sound like a malfunctioning fan clutch.

Poop
JasonStebbins 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



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
continuous exhaust problem Freestyle713 ZJ Grand Cherokee Forum 3 02-24-2011 04:27 PM
a small exhaust problem Wuzz ZJ Grand Cherokee Forum 3 06-27-2009 06:38 PM
Kolak Exhaust Problem micifus ZJ Grand Cherokee Forum 15 07-20-2007 08:48 PM
exhaust problem/rattle SouthernboyWJ ZJ Grand Cherokee Forum 10 04-29-2007 07:51 PM
Exhaust problem Bryan ZJ Grand Cherokee Forum 10 02-22-2002 03:07 PM

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