Clicking/tapping Noise

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ebxjbob

NAXJA Forum User

Location

Snowmass, CO

• Jun 16, 2005

• #1

96 4 litre, 163,000 miles, at idle it sounds great, when reved in neutral it sounds great, when accelerating slowly sounds fine, when accelerating hard there is a slight clicking/tapping noise. anyone know what that could be and should I be worried about it??

 

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Dr. Dyno

NAXJA Forum User

Location

Al Ain, UAE

• Jun 16, 2005

• #2

Probably a crack in the exhaust manifold. Check in the area where the two secondary pipes meet the collector because that's the most crack-prone area. Bad engine mounts can make this worse.

 

old_man

NAXJA Forum User

Location

Loveland, Colorado

• Jun 17, 2005

• #3

It could be preignition, ping. Try a tank of premium fuel. If that fixes it, run a can of BG44K through the gas. I run a can every 10K miles in every vehicle I have. It does wonders for cleaning up the injectors and getting rid of carbon buildup.

 

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Chancer

NAXJA Forum User

Location

Bonnie Scotland

• Jun 17, 2005

• #4

What's BG44K? I'd be interested to know since I've never seen it on this side of the pond, and would like to rid my car of that same noise...

 

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Maz

NAXJA Forum User

Location

LaCanada, CA

• Jun 17, 2005

• #5

http://www.bgprod.com/bgprofessional/bgproducts/autofuel.html

Supposed to be the best fuel system cleaner out there. After looking hard, I finally found it at my local gas station, 2 days ago. I haven't used it yet.

-Maz

 

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ebxjbob

NAXJA Forum User

Location

Snowmass, CO

• Jun 17, 2005

• #6

After listening more closley keeping in mind it could be a crack in the header it sounds like that might just be the issue because the engine is running fine and it makes no noises at idle or even when revved in N, i'm going to get underthere and look later this weekend. can anything be done to fix it besides replacing the header if its cracked and thats the problem??

 

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Dr. Dyno

NAXJA Forum User

Location

Al Ain, UAE

• Jun 18, 2005

• #7

Replace the cracked stock manifold with an aftermarket header e.g. Borla, Banks, Thorley, Mike Leach. You'd be wasting your time trying to weld the crack because they invariably crack again.

 

RichP

NAXJA Forum User

Location

Effort, Pa

• Jun 18, 2005

• #8

Quick fix it to take it to a shop and have them weld it, thats a temporary fix at worst. Seems alot of the newer cars and trucks, not just Jeeps, have this problem. Mentioned it to my friend warren who has the shop and thats what he uses his welder for more than anything else, 95% of them he does while still in the vehicle. A new aftermarket header is probably the best way to go for a long term fix, more expensive for sure.