Bump when accelerating.

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Sep 10, 2002 | 05:13 PM

Branrock

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From: Los Angeles Los Angeles

Bump when accelerating.

I have a 1998 ranger 4x4 supercab with an automatic transmission. When I accelerate from a stopped position it seems as if the transmission starts spinning briefly then there is bump as the truck moves away. This occurs just about everytime that I start from a stopped posistion. Sometimes under breaking I will feel the same type of bumping sensation. I have had the transmission changed (warranty) yet the problem still persist. Does anyone have an idea as to what could be causing this?

Sep 10, 2002 | 06:24 PM

rellik74

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From: Colorado

Bump when accelerating.

I have the same problem too, it kinda like it down shifts as you take off. I also have a new warrenty transmision.

Sep 11, 2002 | 08:50 AM

Ken00

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From: South Jersey

Bump when accelerating.

There are several drive line TSBs, # 02-08-02 01-11-11 & 99-13-04, have you had the dealer check for these problems. I have most of the TSBs except the most resent, email me if you would like a copy.

Sep 11, 2002 | 09:02 AM

Ken00

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From: South Jersey

Bump when accelerating.

Jul 24, 2004 | 01:02 PM

WA.Ranger

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From: Yuba City, CA.

Ken Could I get you to e-mail the TSB's for this problem please. Thank you, Jeff.

Jul 24, 2004 | 08:32 PM

Ken00

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From: South Jersey

Check out the links in the tech info thread, there are two good threads on this topic. Let me know if you still need the TSBs.

Jul 25, 2004 | 02:49 PM

WA.Ranger

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From: Yuba City, CA.

Thanks Ken.

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Jul 26, 2004 | 12:45 AM

WA.Ranger

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From: Yuba City, CA.

I can't seem to figure out how to get around this site yet. I looked in the transmission threads but couldn't seem to find anything.

Jul 26, 2004 | 01:01 AM

#10

el conquistador

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search for it in this forum not the transmission forum.

Jul 26, 2004 | 01:16 AM

#11

goose213

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From: Mission

Sounds like you have a bowling ball in the box of your truck!

Jul 26, 2004 | 05:34 AM

#12

BillC1

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TSB regarding greasing the Yoke Spline on the drive shaft - My 2002 did it - dealer greased the spline - Trouble GONE.

Jul 26, 2004 | 06:07 AM

#13

kotzy

Elder User

Joined: Apr 2004

Posts: 970

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This drive shaft spline bind problem goes back to 1958. I had a Fairlane 500 that did
this. Ford came up with a ribbed seal that got pushed onto the output shaft of the transmission and prevented the ATF from washing out the spline lube. Are they still
using the seal?