gas pedal vibration from 1200-1600 rpm
#1
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gas pedal vibration from 1200-1600 rpm
Hey Guys,
Have a 91' LS400 and it has vibration through the gas pedal when the revs are between 1200-1600. so around 40-50 kph...
Looking through some of the old receipts I got from the previous owner there was a driveshaft replacement, and it was taken back after that and it was "adjusted"... but still the vibration is there.
What things should I be checking here? Tried to do a search but everything I came across was related to braking vibration, not gas pedal vibration.
Thanks!
Have a 91' LS400 and it has vibration through the gas pedal when the revs are between 1200-1600. so around 40-50 kph...
Looking through some of the old receipts I got from the previous owner there was a driveshaft replacement, and it was taken back after that and it was "adjusted"... but still the vibration is there.
What things should I be checking here? Tried to do a search but everything I came across was related to braking vibration, not gas pedal vibration.
Thanks!
#4
Instructor
Does this vibration happen in Park or Drive, or both? If you are in Park or Neutral, the driveshaft will not be rotating, which would eliminate any problems with the driveshaft. If you notice it at all times, than it could possibly be related to the driveshaft, but I would be skeptical....
I would be looking at the engine mounts if it is not present in Park or Neutral. As stated above, the gas pedal is connected to the intake manifold, if the whole engine is shaking, it could cause the pedal to shake. But usually motor mounts would cause the rest of the vehicle to possibly shake a little bit, depending on how bad the mounts are worn.
I would be looking at the engine mounts if it is not present in Park or Neutral. As stated above, the gas pedal is connected to the intake manifold, if the whole engine is shaking, it could cause the pedal to shake. But usually motor mounts would cause the rest of the vehicle to possibly shake a little bit, depending on how bad the mounts are worn.
#5
I have a similar thing on my 92 in overdrive hits 75ish slight sometimes intermittent vibrations around the same rpm 1700. Higher it fades off some. Feel it in steering wheel and thru floor. Have done replaced all the front end stuff over the past year. Has gotten lots better. Ordered my engine mounts today so thats the next step. Already did trans mount.
#6
Instructor
I have a similar thing on my 92 in overdrive hits 75ish slight sometimes intermittent vibrations around the same rpm 1700. Higher it fades off some. Feel it in steering wheel and thru floor. Have done replaced all the front end stuff over the past year. Has gotten lots better. Ordered my engine mounts today so thats the next step. Already did trans mount.
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