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  #1  
Old 09-22-2010
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Jerking when taking off

Hello everyone,

I've been having a problem with my 1999 Ford Ranger 4x4. When taking off from a stop, the truck jerks once or twice. It's not a really really hard jerk, but it's noticeable. At first, I thought the universal joints were bad. To check this out, my dad and I crawled under the truck and tried twisting the driveshaft. The rear and front joints looked fine and had no movement. Next, we put the truck in neutral and put the emergency brake on. Then we tried moving the driveshaft. It had about 1/16 to 1/8 of a turn play in it. What do you guys think?

Thanks!
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Old 09-22-2010
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lol tittle made me laugh like a ****! i need to get my head outta the gutter
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Old 09-22-2010
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i think it does not sound like a u-joint problem. you would hear that as a banging more than feel a jerking
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  #4  
Old 09-24-2010
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prob have some axel wrap
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  #5  
Old 09-24-2010
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Slip yoke needs lube?

TSB 04-23-7

11/29/04
DRIVESHAFT - THUMP/CLUNK ON LIGHT
ACCELERATION FROM STOP OR WHEN BRAKING
AND COMING TO A STOP - RANGER 4X4 SUPER
CAB

FORD:
1998-2005 Ranger

This article supersedes TSB 03-26-2 to update the vehicle model years and service procedure.
ISSUE
Some Ranger 4X4 Super Cab vehicles may exhibit a low frequency thump type noise/vibration on light acceleration from a stop and/or when coming to a stop with light to moderate braking. This may be caused by axle wind up during acceleration or deceleration, creating a stick/slip condition at the rear driveshaft slip yoke splines.

ACTION
A new type of grease is available which will greatly reduce the sticking/binding in the slip yoke during acceleration and deceleration. To service, apply the new grease to the rear driveshaft slip yoke splines. Refer to the following Service Procedure.
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Old 09-24-2010
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Auto or manual tranny ?
If a manual , then the flywheel may be glazed.
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Old 09-24-2010
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Quote:
Originally Posted by ranger4.0 View Post
lol tittle made me laugh like a ****! i need to get my head outta the gutter
Damn man, I'm glad I'm not the only one, I was thinking Oh Boy, what did Jet Blue do now...
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Old 09-27-2010
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It's an automatic transmission
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Old 09-29-2010
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Does anyone know what the "new type of grease" is that was mentioned in the article?
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Old 09-29-2010
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how the **** would a glazed flywheel cause a jerk or bang? it would just slip
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Old 09-29-2010
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well to tell ya the truth i was lookin at a ranger for my step-bro and it kinda did that its not a noise more just like a thud or something like that and i talked to a trans guy and he said it was fluid blow-by in the auto trans.
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Old 09-30-2010
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Originally Posted by ranger4.0 View Post
how the **** would a glazed flywheel cause a jerk or bang? it would just slip
Unless it suddenly grabs
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Old 10-24-2013
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Quote:
Originally Posted by gbdawgy View Post
Hello everyone,

I've been having a problem with my 1999 Ford Ranger 4x4. When taking off from a stop, the truck jerks once or twice. It's not a really really hard jerk, but it's noticeable. At first, I thought the universal joints were bad. To check this out, my dad and I crawled under the truck and tried twisting the driveshaft. The rear and front joints looked fine and had no movement. Next, we put the truck in neutral and put the emergency brake on. Then we tried moving the driveshaft. It had about 1/16 to 1/8 of a turn play in it. What do you guys think?

Thanks!
I think I am having the same issue. I pulled the bushing clamp off pulled it back and sprayed white lithium in there but it didn't seem to help. I didn't take the drive shaft off. Any ideas?
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  #14  
Old 10-25-2013
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Quote:
Originally Posted by ranger4.0 View Post
lol tittle made me laugh like a ****! i need to get my head outta the gutter
LOL you're not alone...

But if it's an auto or a manual really makes a difference.. My auto started to act up in a "shuddering" way before it went out... So kinda like a jerking feeling... I would rather have a problem with the clutch/flywheel than a bad auto.. haha
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Old 10-25-2013
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Originally Posted by 00GreenRanger View Post
LOL you're not alone...

But if it's an auto or a manual really makes a difference.. My auto started to act up in a "shuddering" way before it went out... So kinda like a jerking feeling... I would rather have a problem with the clutch/flywheel than a bad auto.. haha
Auto Trans, it only dies it when at a full stop.
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  #16  
Old 10-25-2013
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Does it ever slip between shifts? (the rpm's race up a little while mid shift)
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  #17  
Old 10-25-2013
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And when was the last time that your tranny fluid was flushed??
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  #18  
Old 10-25-2013
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Doesn't slip. I just got it a few days ago so no idea on the fluids. Another user suggested rear axle pinion.
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  #19  
Old 10-26-2013
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Sounds like you can eliminate the trans.. That's a very good thing lol
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  #20  
Old 10-26-2013
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Originally Posted by 00GreenRanger View Post
Sounds like you can eliminate the trans.. That's a very good thing lol
Still having issues. Had the slip yoke serviced. It jerks on pavement but not on dirt when i punch it, i'm thinking fuel injectors/filter or rear diff, i am pretty sure its a limited slip and maybe its causing the jerkiness as it kicks in. It doesn't do it all the time and i am totally stumped.
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  #21  
Old 10-26-2013
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Maybe the torque converter? I might be totally wrong on this.... Let's see what other people have to say
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Old 10-27-2013
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Originally Posted by 00GreenRanger View Post
Maybe the torque converter? I might be totally wrong on this.... Let's see what other people have to say
It goes into gear just fine. No gear slippage or hard shifts
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  #23  
Old 10-27-2013
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Originally Posted by Sulten View Post
It goes into gear just fine. No gear slippage or hard shifts
Okay well that's good. Have you taken it to a shop to get it diagnosed yet?
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  #24  
Old 10-27-2013
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When I took it to the dealership they said slip yoke, serviced it and still had the same problem cost 40$. So I think ill take it back and have them check it again. I am also thinking about seafoming it because I have a feeling it sat for awhile, I found mouse turds in the air intake case. Still hopping I have a clogged fuel filter or injector. I update what the dealership tells me on Monday.
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