Transmission noise
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Freshman User
Joined: May 2003
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Transmission noise
I have a 2003 550 PSD with 4r100. I have a Gear Vendor over/underdrive also
I have always been concerned with the trans because of other post and research.
My truck weighs about 12,000# and I occasionally tow a 10,000# trailer.
A couple of times when I first start the truck a hear a screech or high pitched whine, seems like it's coming from the tranny but almost sounds like a belt slip?
Most of my driving is in the low desert in California (110-120 degrees). When pulling a grade without trailer I have reached 205-210 on my trans temp guage. Is this to high? What type of trans cooler with fan would be the best and where would you locate it?
I intend on having this truck for 500,000 miles so I am always looking for anything to increase it's life
Any Help?
I have always been concerned with the trans because of other post and research.
My truck weighs about 12,000# and I occasionally tow a 10,000# trailer.
A couple of times when I first start the truck a hear a screech or high pitched whine, seems like it's coming from the tranny but almost sounds like a belt slip?
Most of my driving is in the low desert in California (110-120 degrees). When pulling a grade without trailer I have reached 205-210 on my trans temp guage. Is this to high? What type of trans cooler with fan would be the best and where would you locate it?
I intend on having this truck for 500,000 miles so I am always looking for anything to increase it's life
Any Help?
New User
Joined: May 2003
Posts: 10
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Transmission noise
I was driving up a steep grade in an f350 when I purchased a heavy rv and it squealed and blew the turbo.
So I bought a F450 and did another big grade. I got the squeal again and my tranny (stock)guage went into the yellow.
Now I get the squeal, intermittingly, loaded or unloaded, up hill or downhill.
Real High pitch that stops when you let off the throttle. I'm going to the dealer today.
Did you ever figure out what your's was?
Pat
So I bought a F450 and did another big grade. I got the squeal again and my tranny (stock)guage went into the yellow.
Now I get the squeal, intermittingly, loaded or unloaded, up hill or downhill.
Real High pitch that stops when you let off the throttle. I'm going to the dealer today.
Did you ever figure out what your's was?
Pat
New User
Joined: May 2003
Posts: 10
Likes: 0
Transmission noise
http://www.intellidog.com/dieselmann/bulletin.htm
2002 F-Series and Excursion Belt Squeal; 99-01 with Replaced Belts:
Some 7.3 engines may exhibit a loud squeal noise from the engine area when the engine is under load and the fan clutch is locked up, typically in hot and dusty conditions. Another complaint may be the fan clutch oscillating or not locking up. This may be due to dust accumulating on the back side of the belt and causing it to slip on the water pump pulley. This usually affects only 2002 model/year vehicles, but may occur in trucks built from 99-01 if the belt was replaced after July 01. On single rear wheel trucks, replace the serpentine belt with P/N 1C2Z-8620-NA on single-alternator engines, and 1C2Z-8620-PA on dual-alternators. Broadcast Message 3848.
A service kit has been released for trucks with dual rear wheels. It includes a belt, tensioner and water pump pulley. Use 2C3Z-8620-AA for single alternator and 2C3Z-8620-BA for dual alternators. Broadcast Message 0290.
2002 F-Series and Excursion Belt Squeal; 99-01 with Replaced Belts:
Some 7.3 engines may exhibit a loud squeal noise from the engine area when the engine is under load and the fan clutch is locked up, typically in hot and dusty conditions. Another complaint may be the fan clutch oscillating or not locking up. This may be due to dust accumulating on the back side of the belt and causing it to slip on the water pump pulley. This usually affects only 2002 model/year vehicles, but may occur in trucks built from 99-01 if the belt was replaced after July 01. On single rear wheel trucks, replace the serpentine belt with P/N 1C2Z-8620-NA on single-alternator engines, and 1C2Z-8620-PA on dual-alternators. Broadcast Message 3848.
A service kit has been released for trucks with dual rear wheels. It includes a belt, tensioner and water pump pulley. Use 2C3Z-8620-AA for single alternator and 2C3Z-8620-BA for dual alternators. Broadcast Message 0290.
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