Frank02261979

I am getting a rhythmic (to the engine) vibration. It is low frequency, and only is present for the first five-ten minutes of driving. I initially thought it was loose trim, and checked around for any panels, covers, etc that my be loose, none visible. It sounds to be coming from rear-seat area, or back seat. It does not effect the driving feel of the car. Something of note, that may or not be related, I put the car in "4" on the transmission to see if it could be the bushing on the transmission linkage, and then had a hard time getting it out, and into park.

Could any one shed some light, or ideas as to what it could be, or where to look? I have had the flex disks done, etc...so any insight would be great.

Thank you.

Regards,

oldsinner111

if you had flex disk put in maybe cover loose,or bad muffler hanger.Motor,and trans mount time to do also.remember buy good german parts,don't buy made in china.

oldsinner111

the 5 speed electric shifter,can get stuck,mine won't go to lower gears.One day I will pull it out,and lube the bushing.Video on youtube about it.

Frank02261979

I was thinking the muffler hanger could be a culprit, or something loose in that regard. Do you think that could transmit through to sound as if it were in cabin (ish)...

Yeah, i always to OE part, especially with major components (flexdisks, transmission mount) .... I am really hoping it is just a muffler hanger that needs replacing...lol

oldsinner111

could be,raise car up a little and bang around with a rubber hammer.My exhaust sheilds made noise,so i cut mine off.I cut cats off too.The fuel filter can bang around to,under its cover.

Frank02261979

I will raise it up and bang around.

Thanks for the fuel filter tip...i wouldn't have even thought.

When you cut your CAT shields, did you notice a throatier note than prior? I had my cats replaced, it was aftermarket because they didn't have the factory readily available, it is a throatier exhaust note...i prefer the quieter....but don't think that there is anything I can do to change it at this point...

BTW, thank you for your help/suggestions. I follow the forum pretty closely, generally read all of your posts, you have some great stuff out there, so I appreciate your help on mine.

oldsinner111

yeah engine ran better with all cats gone,and one muffler at rear.I got rid of the loud borla,and bought a thrush turbo muffler.

Frank02261979

i rattled the muffler, tail pipe around real good and didnt get any movement...do you think that it could be the b-pillar covers? its making me nuts..lol

oldsinner111

vac pump under rear seat?

Frank02261979

@oldsinner111, wanted to thank you for your help. It turned out to be the exhaust hanger(s). It had allowed the muffler to sag and hit that cross member slightly. I ordered new ones and put them in, so.... thank you for pointing me in the right direction and helping me out...

oldsinner111

Frank glad i could help