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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Found bucking / stumbling problem

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Old Mar 6, 2006 | 06:34 PM
  #1  
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chrisvman
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From: Michigan
Found bucking / stumbling problem

Hi all
I found the problem with my truck today. I was having problems with the truck bucking when at highway speeds. Found the problem after replaceing a lot of parts that where good. What I found was the speedo drive gear was bad. I took it out and went up to the local dealership. It costed only $7.47 . i wish i found this out before replacing map sensor, Oxygen Sensor,Air temp sensor, and water temp sensor ,VSS sensor. There is not much left now. Well the truck is running fine now after I replaced the speedo drive gear.
 
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Old Mar 6, 2006 | 07:12 PM
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bobcf
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From: western pa,zelienople
Thanks for the post, was the spedo,and cruse controle working?

Bob
 
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Old Mar 6, 2006 | 09:05 PM
  #3  
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02FordFx4
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I am wondering if this is my trucks problem. What engine/tranny do you have? Also did it feel like the tranny was slipping when you were barely on the gas and the engine had a load. Like going up hill?
 
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Old Mar 6, 2006 | 09:06 PM
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chrisvman
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From: Michigan
No cruse control on this truck but the speedo was off when I would get over 20mph lets say I thought i was going 50mph according to the speedo but according to my dad who was following me told me i was going over 70mph the speedo gear did not look that bad but bad enough according to the parts guy.
the truck 1990 F250 5.8l EFI 5 speed and 4 x 4. I hope this helps.
 
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Old Mar 8, 2006 | 08:57 AM
  #5  
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guitar_199
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From: Deer Park USA
I can see that causing the speedometer to be jumpy..... but the truck???? And especially with no cruise control............
 
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Old Mar 8, 2006 | 09:00 AM
  #6  
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gatesj
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From: Remsen, NY
Yeah, that's strange, I would expect maybe a problem with 1992 and later since the speedometer provides a signal itself. I thought 1991 and earlier everything was mechanical...
 
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