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  #1  
Old 06-14-2011, 08:33 PM
Rcknrich Rcknrich is offline
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Default Jerking motion

Hello everyone. I hope someone can help me out here. I am freaking out. I have a 1999 Ford Ranger XLT 4.0. I noticed last week when I am driving my truck make a jerking motion best way to describe it I don't know. Like it wants to stall I don't know. Never had this happen before. I am racking my brain on this one. I just replaced the brakes,flushed out the old brake fluid and power steering. All was good no issues until now. Any ideas would greatly be appreciated. Thank you for your time.
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  #2  
Old 06-15-2011, 03:40 AM
Redneckstone Redneckstone is offline
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Default Re: Jerking motion

jerking when braking?

or jerking during acceleration?
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2000 Ford Ranger XLT 4x4 Offroad, 4.0L ext cab, Converted to Manual M5OD-R1HD.
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  #3  
Old 06-15-2011, 11:33 AM
Drexl Drexl is offline
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Default Re: Jerking motion

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  #4  
Old 06-15-2011, 11:36 AM
Rangernator Rangernator is offline
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Default Re: Jerking motion

Clogged exhaust maybe?

Check all Censors and Wires

Your best bet is to take it to Autozone and have them do a complete scan
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  #5  
Old 06-15-2011, 12:13 PM
brinker88 brinker88 is offline
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Default Re: Jerking motion

egr?
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1993 Ford Ranger Ext. Cab | stepside | 4x4 | 4.0L | Lifted | 35" BFG KM2s | MT Classic IIs | Dana 35/Disc 8.8 with 4.56's | Duals | Etc

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  #6  
Old 06-15-2011, 12:33 PM
6cylfun 6cylfun is offline
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Default Re: Jerking motion

u-joints in the driveshaft?

When exactly does it jerk. Idling, acceleration under a load, when braking.....
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  #7  
Old 06-15-2011, 12:47 PM
brinker88 brinker88 is offline
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Default Re: Jerking motion

it jerks up and down all the time. he just cant help it is all.
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  #8  
Old 06-15-2011, 12:54 PM
HIGH TECH REDNECK HIGH TECH REDNECK is offline
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Default Re: Jerking motion

Quote:
Originally Posted by brinker88 View Post
it jerks up and down all the time. he just cant help it is all.
^^rofl
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  #9  
Old 06-15-2011, 01:00 PM
MTman777 MTman777 is offline
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Default Re: Jerking motion

i knew that was gonna happen the minute i saw the thread title.. lol
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  #10  
Old 06-15-2011, 01:04 PM
2004 fx4 level II 2004 fx4 level II is offline
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Default Re: Jerking motion

check ur harmonic balancer mine broke and it was jerking and stalling
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  #11  
Old 06-15-2011, 04:06 PM
Rcknrich Rcknrich is offline
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Default Re: Jerking motion

Hahah you guys crack me up. Okay I guess that title deserved the comments received. FYI it does it on acceleration. Guess I will ask my mechanic.
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  #12  
Old 06-15-2011, 05:37 PM
OhioMike OhioMike is offline
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Default Re: Jerking motion

Bad Fuel, Oxygen sensor, transmission in need of a flush? You have a 12 year old vehicle, but you don't say how many miles on it.
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  #13  
Old 06-15-2011, 06:13 PM
Winner94 Winner94 is offline
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Default Re: Jerking motion

Quote:
Originally Posted by Rcknrich View Post
Hahah you guys crack me up. Okay I guess that title deserved the comments received. FYI it does it on acceleration. Guess I will ask my mechanic.
i had the same thing when i drove my 98 Jetta

Needed a ton of work so i'm not sure what fixed it...but i did the drive belt, oil, fuel filter, oil filter, air filter, PCV Valve, Breather Hose, plugs/wires and was going to do the Timing Belt, but totaled it before i got the chance.

I'm not sure which it was, but was surprised that those little things made such a big difference, and didn't have it happen again.
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  #14  
Old 06-16-2011, 03:43 AM
6cylfun 6cylfun is offline
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Default Re: Jerking motion

Do you have a check engine light or any codes?

PO316?
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  #15  
Old 06-16-2011, 07:53 AM
Decepticon Decepticon is offline
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Default Re: Jerking motion

Mine is having the same syptom (MISSFIRING), get it scanned. Most likely plugs, wires, or your ignition coil (coil pack).
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