Engine / Transmission Shakes the entire car

[drodecker]

1998 Toyota 4Runner with 210k miles.

I don't use the car as much recently (now that I have a 2013 model), and it seems to have deteriorated. IT starts up right away, but the entire car shakes in unison with the engine.

It pretty much shakes all the time :guitar3:; interesting to observe that the shaking stops when:

• In neutral, when idling with a little gas, around 1200+ RPM.
• When driving 35+ MPH, it suddenly stops.
• When the car is moving and then put into neutral -- note that the shaking comes back when the car comes to a stop.

Am I missing an basic fastener or did something more serious break. Note that the car has never had any major maintenance performed.

Video of car:
https://plus.google.com/photos/100194751819592202377/albums/5856367638987370721/5856367637848363458

 

[jc1kz]

Have you checked the motor mounts? My honda civic would shake somrthing fierce changed the motor mounts and that took care of it....just my two cents.

 

[KidVermicious]

Are you sure it's not missing on one or more cylinders? Pull your spark plug wires one by one while it's running - if you pull one and it doesn't get worse, you've found a cylinder that isn't firing.

 

[drodecker]

Good suggestions. I'll go test that.

 

[drodecker]

Are you sure it's not missing on one or more cylinders? Pull your spark plug wires one by one while it's running - if you pull one and it doesn't get worse, you've found a cylinder that isn't firing.

The spark plug replacement was the trick. It turned out that the spark plug line has a broken off metal end that remained attached to the spark plug. Took a few minutes on getting that carefully removed, but after getting all the new lines and plugs in; everything ran smoothly.

Thanks!:banana:

 

[KidVermicious]

Glad it was easy.