Popping noise from tranny hump and floor board

SpenceXJ · Dec 25, 2008

I have a 99 xj with a np242 and aw4. There is a really faint popping sound that will not go away the comes from the center console/ right by the e-brake lever. Kinda sounds like its in the dash too. It happens when starting out from a stop and even when parked but not as bad.

Anyone have the same thing?

xcm · Dec 25, 2008

sounds like motor or transmission mounts...
does it only happen when shifting from park->drive?

like, if you came to a soft stop, then restarted, it wouldnt clunk, but if you shift to neutral, then back to D, it happens EVERYtime? if so... tranny mount or driveshaft ujoints?

ColoradoRaptor · Dec 25, 2008

SpenceXJ said:
I have a 99 xj with a np242 and aw4. There is a really faint popping sound that will not go away the comes from the center console/ right by the e-brake lever. Kinda sounds like its in the dash too. It happens when starting out from a stop and even when parked but not as bad.

Anyone have the same thing?

You need to be a little more specific.........

SpenceXJ · Dec 25, 2008

ColoradoRaptor said:
You need to be a little more specific.........

What is there to be more specific about?

Also, its just wen shifting, it is when it is in park or driving. If I put my hand next on the left side of the hump I can sort of feel a tapping against it. That tapping goes along with the popping so there are more details.

Jess · Dec 26, 2008

The only thing on the left side of the hump is the t-case shift linkage, but I can't think of any reason it would make any noise.

Have you checked the tranny mount?

ColoradoRaptor · Dec 26, 2008

SpenceXJ said:
What is there to be more specific about?

Also, its just wen shifting, it is when it is in park or driving. If I put my hand next on the left side of the hump I can sort of feel a tapping against it. That tapping goes along with the popping so there are more details.

That is a little better............. sounds like tranny, maybe your flexplate.

Pharaoh XJ · Dec 26, 2008

if its on the driver side then it might be the exhaust

agent98 · Dec 26, 2008

Pharaoh XJ said:
if its on the driver side then it might be the exhaust

Drivers side exhaust? :huh:

Muddy Beast · Dec 26, 2008

agent98 said:
Drivers side exhaust? :huh:

Apparently he doesn't realize us American's drive on the right side of the road... :roflmao:

~Scott

SpenceXJ · Dec 26, 2008

Pharaoh XJ said:
if its on the driver side then it might be the exhaust

Last time I checked my exhaust was not on the side haha

Still can't figure it out though guys

Pharaoh XJ · Dec 26, 2008

What I meant was driverside of the center console where the downpipe turns to the passenger side. Loose exhaust mounts caused mine to rattle & have the poping sound when moving & stopped

DRIVER SIDE

mrtosh · Jan 3, 2009

I just replaced my downpipe and it now rattles on the crossmember. The stock one didn't... Anybody ever replace the exhaust mount in the crossmember? Know where to get one?

Popping noise from tranny hump and floor board

SpenceXJ

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xcm

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ColoradoRaptor

Headbanging Hillbilly

SpenceXJ

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Jess

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ColoradoRaptor

Headbanging Hillbilly

Pharaoh XJ

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agent98

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Muddy Beast

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SpenceXJ

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Pharaoh XJ

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mrtosh

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