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Need HELP bad vibration (shaking)
Moderators: Administrator, NC-Fordguy, KrawlinYJ
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992door
Sun Aug 23 2009, 01:58PM
Registered Member #251
Joined: Sun Jun 28 2009, 11:54PM
Location: Winterville, NC
Posts: 12
Did not know where to put this

When driving down the road if i give it medium to heavy throttle when it gets to around 55-60 it just starts shaking violently (sp?) so much that i have to get off the throttle and it feels like it has lost alot of power. BUT when i let off the throttle i can not feel it doing it anymore. So i let it slow down until about 50 or so and it i get back on the throttle REALLY light it will go past 55-60 without doing it. I thought it might be missing but i has not thrown any codes of any sort. It has been doing this for a little over a year but before it would only do it at like 70 and i would never go 70 so i would forget about it. HELP!! it is getting anoying. The more that it does the more it feels like the motor. Because the last few times it has done it I started paying attention to it more and i can hear a different tone from the exhaust.

Forgot to add it is a 99 chevrolet 2 door tahoe with the 5.7 and 160,000 miles on it. I have had the transmission rebuilt this year and the rear end a month ago was rebuilt
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NC-Fordguy
Tue Aug 25 2009, 06:37PM
Webmaster

Registered Member #2
Joined: Tue Mar 06 2007, 05:53PM
Location: Bethel NC
Posts: 1151
I'm a little confused here....is the shaking you're describing coming from the engine or the drivetrain or perhaps the front end???

No Hablos Jeep

If it doesn't make sense, do it
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rockcity
Tue Aug 25 2009, 10:23PM

Registered Member #21
Joined: Tue Mar 13 2007, 05:17PM
Location: Greenville, NC
Posts: 703
check the u joints in the rear AND front driveshafts.

maybe the rear slip yoke?

www.ECORS.com
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992door
Thu Aug 27 2009, 10:09PM
Registered Member #251
Joined: Sun Jun 28 2009, 11:54PM
Location: Winterville, NC
Posts: 12
NC-Fordguy wrote ...

I'm a little confused here....is the shaking you're describing coming from the engine or the drivetrain or perhaps the front end???


I am confused to i am having a hard time about telling where it is coming from i am thinking motor more that drivetrain
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