xhifer

My car is a all stock z28 ls1 m6. When I'm in idle sitting at a light or traffic, I feel a shake/tremor once in a while. When I look under the hood, the motor would be steady and then 5 seconds later it would tremor and shake a little bit then it's steady again. I feel the shake in my seat and it's annoying. The RPM is steady and never fluctuates. There is no shake when I'm moving. It only happens at idle when car is warmed up.

What should I look for? Mounts? Tranny or Motor? Misfire? My scangauge did not pull any codes.

jaxcam02

iTrader: (1)

may just be normal, mine does the same thing, its really subtle and only noticeable to me and not passengers, my brother said the car felt like it was carburated on his first ride in the car.

LS-ONE_DAY

Most likely mounts. If they are stock rubber mounts they might be cracked, broken. Might need replaced.

xhifer

Where can I buy rubber mounts for a decent price? I assume OEM is expensive.

xhifer

This is quite minor but it has kept me from driving the car. Lol

2000***camaro***ss

iTrader: (3)

Ive heard this is normal for LS1's but dont quote me on that. i wouldnt worry bout it...

Latch

iTrader: (8)

Mine does the same thing, I figure it's not a Lexus it's a muscle car, so I don't let it bother me.

sams02Z28

^^this..mine does to but I gave up tryin to cure it!! An as far as mounts,go poly,it wont help the vibration at all,but I would highly recommend them over stock mounts!!

LS1121

iTrader: (17)

I get this also but mine is because I installed Poly Motor mounts. There is nothing wrong with my car I just fell the vibration from the motor a little. Do you have Poly motor mounts?

513camarors91

iTrader: (5)

its the motor mounts...replace them with some pollys and be done with it

xhifer

I don't know if I have polys. Anyone know where I can get the cheapest rubber mounts? Kragen cost 80 a side.

sams02Z28

http://www.ws6project.com/user_stor/...on-mounts-kit/ Poly tranny an motor mount kit for alittle less than 80 bux!! I'm sure you can find some cheap rubber mounts somewhere but you'll be raplacing them again..do it once,do it right!!

Latch

iTrader: (8)

Many people who have installed poly trans mounts have found they dramatically increase vibrations, not reduce them.