Thumping sound under seat when in gear???
09-09-2011, 12:02 AM
#1
Three Wheelin'
Thread Starter
Thumping sound under seat when in gear???
Summary: When in gear at 2200 rpm there is a loud thumping under the passenger seat. Is it the exhaust?
I just had the tailpipe of my exhaust welded (see second pic) and I think the exhaust pipe runs under the seat? The problem started after the shop worked on my car.
What scares me is that the rattle only happens in gear and in all gears. Any suggestions? The sound is a rhythmic thumping as if something with mass is repetitively slamming into the floor board. I can feel the sound if I touch the seat. inb4 you need new tires
If I need to I will ask the shop to fix the noise.
Also, cool/funny photo thread!
I just had the tailpipe of my exhaust welded (see second pic) and I think the exhaust pipe runs under the seat? The problem started after the shop worked on my car.
What scares me is that the rattle only happens in gear and in all gears. Any suggestions? The sound is a rhythmic thumping as if something with mass is repetitively slamming into the floor board. I can feel the sound if I touch the seat. inb4 you need new tires
If I need to I will ask the shop to fix the noise.
Also, cool/funny photo thread!
09-09-2011, 01:03 AM
#2
Late Porkchops
Rennlist Member
Rennlist Member
I cant say about the muffler but it should be easy to tell with the car on a rack if that is the problem.
A thumping in gear sounds like it could be a drive axle is going out. If nothing apparent is seen in examining the pipe and muffler I would have a look at the drive axle and CV and maybe the wheel bearing.
A thumping in gear sounds like it could be a drive axle is going out. If nothing apparent is seen in examining the pipe and muffler I would have a look at the drive axle and CV and maybe the wheel bearing.
09-09-2011, 03:24 AM
#4
Three Wheelin'
Thread Starter
They just welded the severed piece, show in the first post. They also replaced a rubber support piece that was missing.
The thumping started when I left the shop. It was not there before. I just don't understand why the thumping noise is there only when I'm in gear. It could just be a coincidence.
The thumping started when I left the shop. It was not there before. I just don't understand why the thumping noise is there only when I'm in gear. It could just be a coincidence.
09-09-2011, 06:45 AM
#5
Three Wheelin'
when I saw the title I immediately thought exhaust as had a similar problem in another car, and after reading what has happened before knock started, I think exhaust is most likely. The reason it only happens in gear is the extra movement in the motor under load maybe enough for exhaust to touch body, but not when motor isn't under load.
I would be heading back to were work was done and explain the situation in a calm manner, and more than likely, they will suss it out and hopefully fix the problem. Don't go in all guns blazing as it might get there back up. Most repairers will happilly fix these sorts of problems, as I know mine did, and I had to go back a couple of times, as problem reappeared, and the second time was several months later
peace
Cyberpunky
I would be heading back to were work was done and explain the situation in a calm manner, and more than likely, they will suss it out and hopefully fix the problem. Don't go in all guns blazing as it might get there back up. Most repairers will happilly fix these sorts of problems, as I know mine did, and I had to go back a couple of times, as problem reappeared, and the second time was several months later
peace
Cyberpunky
09-09-2011, 10:04 PM
#6
Three Wheelin'
Thread Starter
when I saw the title I immediately thought exhaust as had a similar problem in another car, and after reading what has happened before knock started, I think exhaust is most likely. The reason it only happens in gear is the extra movement in the motor under load maybe enough for exhaust to touch body, but not when motor isn't under load.
I would be heading back to were work was done and explain the situation in a calm manner, and more than likely, they will suss it out and hopefully fix the problem. Don't go in all guns blazing as it might get there back up. Most repairers will happilly fix these sorts of problems, as I know mine did, and I had to go back a couple of times, as problem reappeared, and the second time was several months later
peace
Cyberpunky
I would be heading back to were work was done and explain the situation in a calm manner, and more than likely, they will suss it out and hopefully fix the problem. Don't go in all guns blazing as it might get there back up. Most repairers will happilly fix these sorts of problems, as I know mine did, and I had to go back a couple of times, as problem reappeared, and the second time was several months later
peace
Cyberpunky
