buzzing vibration noise
New User
Joined: Feb 2001
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buzzing vibration noise
Hi,
I've got this buzzing noise that seems to be coming from under the dash near the windshield. It starts when I hit around 65 MPH regardless of RPM's. I tried banging on and pulling on the dash with this going on with no noticable effect. Anyone seen anything like this ? I've got a 90 f150 302 4x4 with a super cab and automatic tranny.
Thanks,
TJ
I've got this buzzing noise that seems to be coming from under the dash near the windshield. It starts when I hit around 65 MPH regardless of RPM's. I tried banging on and pulling on the dash with this going on with no noticable effect. Anyone seen anything like this ? I've got a 90 f150 302 4x4 with a super cab and automatic tranny.
Thanks,
TJ
Senior User
Joined: Mar 2000
Posts: 425
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buzzing vibration noise
Mine does that also, but its from my exhuast, if I put the clutch in the resonations stops...heh, price you pay to set off car alarms is how I personally feel.
1995 F-150XL SC/SB
http://members.sounddomain.com/blind
5-Star Rated F-150 (Big Stereo)
1995 F-150XL SC/SB
http://members.sounddomain.com/blind
5-Star Rated F-150 (Big Stereo)
Posting Guru
Joined: Nov 2000
Posts: 1,475
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buzzing vibration noise
Hi, you could check all the penetrations in the firewall sounds like air is blowing in on something and making a noise also check your speedometer cable lube it up with DRY GRAPHITE no oil!!! see if this helps. John
Senior User
Joined: Nov 2000
Posts: 122
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buzzing vibration noise
I've had leaves get in the "squirrel" cage area of the HVAC fan, and buzz like the baseball card in the newspaperboy's bicycle spokes. If foreign matter is only moving into harm's way at highway speeds, due to wind pressure, that might be the cause. Try varying all your climate control settings and looking for a differnce.
Also, I would examine the cowl area for loose pieces or foreign matter. This probably won't help, but I mention it b/c I finally discovered the source of an annoying, fairly "heavy" rattle near the P/S windshild. The sheetmetal on which the radio antenna is mounted was flipping up and down w/ the occilations of the antenna, as a 1/3" metal tab that normally holds the back side of sheet metal up to cowl height broke off. Just about drove me crazy.
Let us know!
Also, I would examine the cowl area for loose pieces or foreign matter. This probably won't help, but I mention it b/c I finally discovered the source of an annoying, fairly "heavy" rattle near the P/S windshild. The sheetmetal on which the radio antenna is mounted was flipping up and down w/ the occilations of the antenna, as a 1/3" metal tab that normally holds the back side of sheet metal up to cowl height broke off. Just about drove me crazy.
Let us know!
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