Engine vibrations when its given gas.

94RedGt · Feb 12, 2012

Hey guys ever since i got my car i have always had this weird vibrations when ever i drive the car hard, as in WOT , pass 2000 rpm and u can feel the vibrations coming all the way to the shifter , i have looked at the engine while its running and have noticed that my harmonic balancer wobbles while the engine is running, when looking at it from the side u can see the flat face of the balancer wobble pretty bad and i have not touched it cuz my brother told me its suppost to be like that but i dont think a thing like a balancer is suppost to rotate that way, i know the back part of the balancer is not flat but the front is and it does not rotate flush when the engine is running.

Under hard throttle u can actually hear the engine vibrate and its kind of scare like its about to fucking explode, i got a lot of vibrations on the shifter but its from the transmission that its about to go its going to get rebuild in a month.

Should i replace my balancer if its wobbling ? Also i had the tranny out of the car once to change a bad rear main seal at my friends shop and we did not mark the position of the driveshaft when we took it out , ever since that day i get a strange vibration also under hard throttle . Can the driveshaft also be causing problems ? I get no vibrations at all when cruising at 70mph so i dont think my driveshaft or anything down there is out of balance or it would vibrate horribly all the time.

Stang331 · Feb 12, 2012

Crawl under the car and check balancers, to see if the rubber is coming out. Does it do it with the car in neutral or driving?

Addermk2 · Feb 12, 2012

stop driving the car and replace the balancer... your brother is a moron

94RedGt · Feb 12, 2012

The engine does vibrate when in neutral also and im sure its nothing wrong internally like a rod going cuz it makes no funny noises , it revs with no problem it just feels like its going to explode lol. And yes i told me brother hes a moron plenty of times

. Is an autozone or advance autoparts balancer ok ?

g36 monkey · Feb 12, 2012

Make sure it isn't crank walk. What looks like a wobble could be your crank moving in and out, which could mean your thrust bearing is toast.

hoping its just the balancer though

Musturd · Feb 12, 2012

Lol this is so common on these cars. Had a customer come in yesterday to get his mid pipe tightened and I saw the rubber coming out , I told him he needed a new one he drove it home only for it to get hella bad like I said then he paid me extra to do it at his house Cus it was getting really bad.. Kid scored a power bond for 75 bucks new

94RedGt · Feb 12, 2012

It is not crankwalk, i can see the front part of the balancer wobble while the pulley in front of it is nice and flush, plus the crank does not move when pressing the clutch.