popping under floorpan, what is it?

cmb91LX

New Member

Apr 20, 2004

432

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Memphis

Apr 27, 2004

#1

• Apr 27, 2004

• #1

Alright, here is the deal. I have recently purchased a 91 LX5liter and I have some woes. The one addressed in this thread is the fact that when i let out of the clutch and apply throttle, there is a noticeable pop under the driver side floor pan. It also seems to thump under there when I am turning a corner from a stop and applying throttle. I have a feeling the endlinks could be the culprit BUT, would it be the endlinks or actually some bushing making this popping noise. Has anyone else experienced this thump and if so please share your remedies.

 

blkstangman88

New Member

Apr 6, 2004

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Apr 27, 2004

#2

• Apr 27, 2004

• #2

i had a somwhat same problem, mine was my passanger side motor mount was shot so when i gave the car gas the engine would lift and put the driveshaft in a funky possition making the u-joints pop, after i replaced the motor mount and new k-member with new nuts for the tranny it all stopped. if its a poping like a backfire, then your pipe could just be loose and all the pressure is leaking from there. just a thought.

 

Legendary

Founding Member

Oct 10, 2002

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City of Angels

Apr 27, 2004

#3

• Apr 27, 2004

• #3

Also the ripping of the floor pan can make lots of noise when the car is twisting.

 

cmb91LX

New Member

Apr 20, 2004

432

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0

Memphis

Apr 27, 2004

#4

• Apr 27, 2004

• #4

Motor mounts are good/new, no exhaust leaks. It feels almost like a CV joint going out in a FWD car, the popping feels the same. Any other ideas?

 

Stump1000

New Member

Apr 5, 2003

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Morristown Tn

Apr 27, 2004

#5

• Apr 27, 2004

• #5

what kinda wheels does your car have? Weld wheels are known for that, if they are doing that then they need to be tightened

 

Stump1000

New Member

Apr 5, 2003

495

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Morristown Tn

Apr 27, 2004

#6

• Apr 27, 2004

• #6

it sounds more like a clicking sound though... like a cv joint almost

 

Iowa91LX

Founding Member

May 6, 2001

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Grundy Center, Iowa

Apr 27, 2004

#7

• Apr 27, 2004

• #7

Have you checked out your tranny mount bushings? Check and make sure that all your mounts are tight and bushings are still in good shape.

 

blkstangman88

New Member

Apr 6, 2004

646

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0

Apr 27, 2004

#8

• Apr 27, 2004

• #8

check the U-joint on the drive shaft, may be shot.

 

9

91_4ourBanger

New Member

Feb 8, 2004

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Apr 27, 2004

#9

• Apr 27, 2004

• #9

im not sure how the undercarriage of your car looks like, but my friends 02 V6 had the same problem, it turned out his exhaust pipes were hitting against something. if you have a lift put your car on it, and have someone look under your car and start the car, if the pipes hit something, then you have to push the pipes back into place.

 

S

Scorcher2005

Member

Apr 17, 2004

883

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16

South Carolina

Apr 28, 2004

#10

• Apr 28, 2004

• #10

my car (91 gt) has the same problem, but only on the passenger side. I think it may have something to do w/ the suspension such as the spring isolators...