High speed rumbling?

JD22 · 06-23-2009, 04:09 PM

SOMETIMES when I go above about 70 mph the truck rumbles a bit. It's noticeable but it's not like tragic. But the thing is Pennsylvania roads are crappy, especially on Route 28, and I cannot tell if it's the truck or the roads. If you think it is something that should be taken care of, it's still under the warranty.

Btw it's a '98 XLT w/ 4WD

Thanks

**AllanD** · 06-23-2009, 04:45 PM

Typically a "rumble" is either an out of balance driveshaft OR an axle
shaft bearing in the rear.

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Jay FX4 · 06-23-2009, 04:48 PM

Driveshaft +1

srteach · 06-23-2009, 04:54 PM

You do know that that year ranger has a Technical Service Bulletin on the drive shaft, Don't you? And that problem will cause vibrations in the shaft. The TSB indicates that the drive shaft should be removed and re-greased with a special grease. Most people on here just put a zerk (grease point) on the shaft.

JD22 · 06-27-2009, 09:25 AM

what is the special grease called so I can talk to someone about it?

**kunar** · 06-27-2009, 11:29 AM

Quote:

Originally Posted by JD22

what is the special grease called so I can talk to someone about it?

http://www.therangerstation.com/foru...ad.php?t=53011

...but the common symptom is a clunk when shifting to drive or reverse. i would look at u-joints and bearings.

feellnfroggy · 06-27-2009, 12:41 PM

I would think driveshaft vibrations come into play alot sooner than 70. Im thinkin maybe his tire combo with the roads, and or wheel bearings.

JD22 · 08-10-2009, 07:01 PM

Quote:

Originally Posted by feellnfroggy

I would think driveshaft vibrations come into play alot sooner than 70. Im thinkin maybe his tire combo with the roads, and or wheel bearings.

See that's the thing, It only happens sometimes. But I guess it could be anything that anyone else described.

JD22 · 10-29-2009, 05:37 PM

Would a missing rear shock have anything to do with it?

06-23-2009, 04:09 PM	#1
JD22 Member Join Date: Apr 2009 Location: Freeport, PA Year: 1998 Make: Ford Model: Ranger XLT Engine: 4.0 Class: 4x4 Used For: Daily driver Posts: 204 Rep Power: 9 iTrader: (0)	High speed rumbling? SOMETIMES when I go above about 70 mph the truck rumbles a bit. It's noticeable but it's not like tragic. But the thing is Pennsylvania roads are crappy, especially on Route 28, and I cannot tell if it's the truck or the roads. If you think it is something that should be taken care of, it's still under the warranty. Btw it's a '98 XLT w/ 4WD Thanks
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06-23-2009, 04:45 PM	#2
AllanD RBV Technical Advisor Join Date: Jun 2001 Location: East-Central Pennsylvania Year: 1987... sorta Make: Ford Model: Ranger Supercab Engine: '93 4.0 Class: 4x4 Used For: Roadtrip Warrior Posts: 7,169 Rep Power: 47 iTrader: (18)	Typically a "rumble" is either an out of balance driveshaft OR an axle shaft bearing in the rear. AD __________________ Gun Control - A theory espoused by some monumentally stupid people; who claim to believe, against all logic and common sense, that a violent predator who ignores the laws prohibiting them from robbing, raping, kidnapping, torturing and killing their fellow human beings will obey a law telling them that they cannot own a gun.
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06-23-2009, 04:54 PM	#4
srteach Member Join Date: Aug 2007 Year: 1999, 2001 Make: Ranger, F350 Model: XLT supercab, SuperDuty Engine: 4.0L, 7.3 Diesel Class: 4x4 both Used For: DD / light OR, DD Posts: 979 Rep Power: 14 iTrader: (0)	You do know that that year ranger has a Technical Service Bulletin on the drive shaft, Don't you? And that problem will cause vibrations in the shaft. The TSB indicates that the drive shaft should be removed and re-greased with a special grease. Most people on here just put a zerk (grease point) on the shaft.
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06-27-2009, 09:25 AM	#5
JD22 Member Join Date: Apr 2009 Location: Freeport, PA Year: 1998 Make: Ford Model: Ranger XLT Engine: 4.0 Class: 4x4 Used For: Daily driver Posts: 204 Rep Power: 9 iTrader: (0)	what is the special grease called so I can talk to someone about it?
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06-27-2009, 12:41 PM	#7
feellnfroggy Member Join Date: Jun 2008 Location: Knoxville, TN Year: 1993 Make: Ford Model: Ranger Engine: 4.0L Class: 4x4 Used For: DD for right now. Posts: 4,461 Rep Power: 20 iTrader: (0)	I would think driveshaft vibrations come into play alot sooner than 70. Im thinkin maybe his tire combo with the roads, and or wheel bearings.
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10-29-2009, 05:37 PM	#9
JD22 Member Join Date: Apr 2009 Location: Freeport, PA Year: 1998 Make: Ford Model: Ranger XLT Engine: 4.0 Class: 4x4 Used For: Daily driver Posts: 204 Rep Power: 9 iTrader: (0)	Would a missing rear shock have anything to do with it?
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