Intermittent whirring/grinding/rubbing sound and vibration while stationary
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Joined: Jun 2010
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Intermittent whirring/grinding/rubbing sound and vibration while stationary
1995 f150, 2wd, straight 6, 5 speed manual transmission
Whirring, grinding, rubbing sound.
It just started about a month ago.
Feel it in the gas pedal. A vibration.
Intermittent, occasional. Sometimes won't hear it for a day or 2.
If I hear it I'm probably going 25-35 mph.
Heard it once for a few seconds after going over a bump
Heard it once for a few seconds while taking a left turn
Heard it once immediately upon starting the truck, while stationary. Lasted about 5 seconds. Went away when I tapped the gas pedal a bit.
Seems to be coming from the engine compartment.
When it happens the speed of the truck seems to be affected. It slows down a little, like the brakes are being pushed slightly. Might be my imagination.
A belt going bad?
A bearing going bad?
Whirring, grinding, rubbing sound.
It just started about a month ago.
Feel it in the gas pedal. A vibration.
Intermittent, occasional. Sometimes won't hear it for a day or 2.
If I hear it I'm probably going 25-35 mph.
Heard it once for a few seconds after going over a bump
Heard it once for a few seconds while taking a left turn
Heard it once immediately upon starting the truck, while stationary. Lasted about 5 seconds. Went away when I tapped the gas pedal a bit.
Seems to be coming from the engine compartment.
When it happens the speed of the truck seems to be affected. It slows down a little, like the brakes are being pushed slightly. Might be my imagination.
A belt going bad?
A bearing going bad?
Last edited by makandajohn; Jun 7, 2010 at 04:09 PM.
Senior Member
Joined: Oct 2009
Posts: 2,581
Likes: 6
From: Corona, Crazyfornia
Start at the front of the motor. Fire it up and let it ldle look at all the pullys and the fan, you are looking for any signs of wobbles. Next shut it off and release the tension on the belt and spin/wiggle all the pulleys. Then with the belt still loose grab the fan and see if there is any play as you try to move the top blade front to back on the truck.
This should tell you if it is belt/pully related. I had the tensioner bearing go on my Expy and it sounded like something was being tortured!
If that stuff doesn't yeild any results then the next time it makes the noise/vibration try pushing the clutch to the floor and see if that changes anything. If the clutch being disingaged quiets it down then it is may be in the trans or drive train.
Hope that helps---good luck.
This should tell you if it is belt/pully related. I had the tensioner bearing go on my Expy and it sounded like something was being tortured!
If that stuff doesn't yeild any results then the next time it makes the noise/vibration try pushing the clutch to the floor and see if that changes anything. If the clutch being disingaged quiets it down then it is may be in the trans or drive train.
Hope that helps---good luck.