Jeep makes popping noise - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 06-08-2013, 04:42 PM   #1
Jeeper
 
Jrgarcia715's Avatar
 
Join Date: Mar 2013
Posts: 141
Jeep makes popping noise

When I am driving my jeep and I run up the RPMs and the go back down its making a popping noise and it sounds like its coming from the exhaust does anyone have any idea what it could be.

Thanks in advance

Jrgarcia715 is offline   Quote Quick Reply
Old 06-08-2013, 06:10 PM   #2
Jeeper
 
indirocz28's Avatar
 
Join Date: Feb 2013
Location: Fort Hood/ BCS, TX
Posts: 1,044
Do you have any exhaust leaks?

It is common for a small bit of "popping" to come from manual jeeps in low gears.

__________________
MY1990 "Little YJ" Build: http://www.wranglerforum.com/f8/brou...ay-242064.html
Come wheel with us at Brazos Valley Off Road Ranch! http://www.wranglerforum.com/f53/bra...tx-237657.html
indirocz28 is offline   Quote Quick Reply
Old 06-08-2013, 06:21 PM   #3
Jeeper
 
jughead2.5's Avatar
 
Join Date: Oct 2012
Posts: 21
Probly have an exhaust leak mine does it because of a small exhaust leak I just call them jeep farts ill fix it one o these days
jughead2.5 is offline   Quote Quick Reply
Old 06-08-2013, 09:00 PM   #4
Jeeper
 
Jrgarcia715's Avatar
 
Join Date: Mar 2013
Posts: 141
Quote:
Originally Posted by indirocz28 View Post
Do you have any exhaust leaks?

It is common for a small bit of "popping" to come from manual jeeps in low gears.
I know for sure that I have a leak in my intake and exhaust manifold gaskets so could that be the problem then?
Jrgarcia715 is offline   Quote Quick Reply
Old 06-08-2013, 10:41 PM   #5
Jeeper
 
Redrider94's Avatar
 
Join Date: Aug 2010
Posts: 633
A burnt out muffler will make popping sound when you let off the gas or when going down hill coasting. That's where I'd start looking.
Redrider94 is offline   Quote Quick Reply
Old 06-08-2013, 11:04 PM   #6
Jeeper
 
indirocz28's Avatar
 
Join Date: Feb 2013
Location: Fort Hood/ BCS, TX
Posts: 1,044
I would START by fixing the intake leak, then your exhaust leak.

Then go from there..

Having a vacuum leak on the intake side will cause it to run lean. Bad for engine.
__________________
MY1990 "Little YJ" Build: http://www.wranglerforum.com/f8/brou...ay-242064.html
Come wheel with us at Brazos Valley Off Road Ranch! http://www.wranglerforum.com/f53/bra...tx-237657.html
indirocz28 is offline   Quote Quick Reply
Old 06-08-2013, 11:11 PM   #7
Jeeper
 
Jrgarcia715's Avatar
 
Join Date: Mar 2013
Posts: 141
Quote:
Originally Posted by Redrider94 View Post
A burnt out muffler will make popping sound when you let off the gas or when going down hill coasting. That's where I'd start looking.
Ok will do thanks
Jrgarcia715 is offline   Quote Quick Reply
Old 06-08-2013, 11:12 PM   #8
Jeeper
 
Jrgarcia715's Avatar
 
Join Date: Mar 2013
Posts: 141
Quote:
Originally Posted by indirocz28 View Post
I would START by fixing the intake leak, then your exhaust leak.

Then go from there..

Having a vacuum leak on the intake side will cause it to run lean. Bad for engine.
Ya definitely but according to the mechanic I took it to he said that in order to fix one you have to do the other as well is that true or no?
Jrgarcia715 is offline   Quote Quick Reply
Old 06-08-2013, 11:35 PM   #9
Jeeper
 
indirocz28's Avatar
 
Join Date: Feb 2013
Location: Fort Hood/ BCS, TX
Posts: 1,044
You might as well. It will be the "Correct" way to repair your jeep. It does no good to allow fresh air into the intake system un metered, nor fresh air into the exhaust system before the o2 sensor, or directly after it. Those will make it run lean, burn fuel, and cause other issues as well.

The next thing to do is replace whatever else in your exhaust system is bad, your catalytic converter on back.

I just replaced my cat, muffler, and tail pipe, and it all sounds great now.
__________________
MY1990 "Little YJ" Build: http://www.wranglerforum.com/f8/brou...ay-242064.html
Come wheel with us at Brazos Valley Off Road Ranch! http://www.wranglerforum.com/f53/bra...tx-237657.html
indirocz28 is offline   Quote Quick Reply
Old 06-09-2013, 02:24 AM   #10
Jeeper
 
Jrgarcia715's Avatar
 
Join Date: Mar 2013
Posts: 141
Quote:
Originally Posted by indirocz28 View Post
You might as well. It will be the "Correct" way to repair your jeep. It does no good to allow fresh air into the intake system un metered, nor fresh air into the exhaust system before the o2 sensor, or directly after it. Those will make it run lean, burn fuel, and cause other issues as well.

The next thing to do is replace whatever else in your exhaust system is bad, your catalytic converter on back.

I just replaced my cat, muffler, and tail pipe, and it all sounds great now.
Thanks for the advice I'm gonna talk to the mechanic on Monday about pricing hopefully it won't be too steep
Jrgarcia715 is offline   Quote Quick Reply
Old 06-09-2013, 05:22 AM   #11
Jeeper
 
indirocz28's Avatar
 
Join Date: Feb 2013
Location: Fort Hood/ BCS, TX
Posts: 1,044
Depending on his labor rates, expect 6-8 hrs on the manifolds, and 2hrs on the rest of the exhaust, plus parts.

To give you some help, you can buy a replacement cat, muffler, and fail pipe from advance for under $150 yourself. Saves you the mechanic parts mark up.

Depending where you're at, in the past year or so, I have been hearing shops tell me mark up prices on parts from 50-300% ! I blame this on the economy, but it is very common now.
__________________
MY1990 "Little YJ" Build: http://www.wranglerforum.com/f8/brou...ay-242064.html
Come wheel with us at Brazos Valley Off Road Ranch! http://www.wranglerforum.com/f53/bra...tx-237657.html
indirocz28 is offline   Quote Quick Reply
Old 06-09-2013, 11:21 AM   #12
Jeeper
 
Jrgarcia715's Avatar
 
Join Date: Mar 2013
Posts: 141
Quote:
Originally Posted by indirocz28 View Post
Depending on his labor rates, expect 6-8 hrs on the manifolds, and 2hrs on the rest of the exhaust, plus parts.

To give you some help, you can buy a replacement cat, muffler, and fail pipe from advance for under $150 yourself. Saves you the mechanic parts mark up.

Depending where you're at, in the past year or so, I have been hearing shops tell me mark up prices on parts from 50-300% ! I blame this on the economy, but it is very common now.
Do you have the website I can find the cat, muffler, ect.
Jrgarcia715 is offline   Quote Quick Reply
Old 06-09-2013, 12:06 PM   #13
Jeeper
 
indirocz28's Avatar
 
Join Date: Feb 2013
Location: Fort Hood/ BCS, TX
Posts: 1,044
advance auto parts. But go into your local store and get the magnaflow cat, the Thrust Welded muffler, and a standard tail pipe.
__________________
MY1990 "Little YJ" Build: http://www.wranglerforum.com/f8/brou...ay-242064.html
Come wheel with us at Brazos Valley Off Road Ranch! http://www.wranglerforum.com/f53/bra...tx-237657.html
indirocz28 is offline   Quote Quick Reply
Old 06-09-2013, 10:10 PM   #14
Jeeper
 
Jrgarcia715's Avatar
 
Join Date: Mar 2013
Posts: 141
Quote:
Originally Posted by indirocz28 View Post
advance auto parts. But go into your local store and get the magnaflow cat, the Thrust Welded muffler, and a standard tail pipe.
Ok will do do you know what big chain stores hold those items I'm new to my area and don't really know where I could go

Jrgarcia715 is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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.



Thread Tools

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 Off
Refbacks are Off




» Featured Product

All times are GMT -5. The time now is 02:11 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