Help Please
Thread Starter
|
Postmaster
Joined: Oct 2005
Posts: 2,956
Likes: 0
From: Northeast TN
Help Please
Hey Guys,
This morning I used my papaw's truck to haul off a load of cattle form him. It's an early 99, F250, psd, 4x4, auto bone stock. It wasnt a heavy load only 3K, but when the trans would shift the motor would rev up then shift. This happend only when the over drive was on. Also the turbo is extreamly loud. BTW He bought this truck new and it only has 38K on it. Any ideas?
Thanks,
Huck
This morning I used my papaw's truck to haul off a load of cattle form him. It's an early 99, F250, psd, 4x4, auto bone stock. It wasnt a heavy load only 3K, but when the trans would shift the motor would rev up then shift. This happend only when the over drive was on. Also the turbo is extreamly loud. BTW He bought this truck new and it only has 38K on it. Any ideas?
Thanks,
Huck
Laughing Gas
Joined: Jul 2003
Posts: 1,157
Likes: 1
From: Littleton, Colorado
this could be the problem:
4R100 auto trans shift flair; 99 F-SuperDuty:
An intermittent rise in engine RPM's at 2-3 or 3-4 shifts on certain calibrations may be caused by reduced fluid control pressure in the solenoid body. There is a new solenoid body--F81Z-7G391-CB--and a revised computer strategy to correct this. TSB#99-8-1
Austin
4R100 auto trans shift flair; 99 F-SuperDuty:
An intermittent rise in engine RPM's at 2-3 or 3-4 shifts on certain calibrations may be caused by reduced fluid control pressure in the solenoid body. There is a new solenoid body--F81Z-7G391-CB--and a revised computer strategy to correct this. TSB#99-8-1
Austin
Post Fiend
Joined: Jul 2005
Posts: 14,582
Likes: 12
From: 21791
The turbo whistle is comparable to a 99.5+ truck with a Wicked Wheel installed. They come from the factory like that, and then in 1999.5 they redesigned the turbocharger and put in a "quieter" compressor wheel that loves to surge.
Thread
Thread Starter
Forum
Replies
Last Post
92 Red F150
1987 - 1996 F150 & Larger F-Series Trucks
10
Jun 3, 2005 09:46 PM
