Transmissions and Drivetrain Need help with your trans? Problems with your axle?

shaking ?????

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Old Dec 19, 2003 | 09:29 PM
  #1  
gmracinggirl
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shaking ?????

My steering wheel and dash want to shake when it's idling and i know it is something in the drivetrain but i am not sure what. Could someone help me find out why this is happening?
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Old Dec 20, 2003 | 07:22 AM
  #2  
ede's Avatar
ede
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From: Jackson County
if it shakes at idle (not moving) it's not, or most likely not, something in the drive train. i'd suspect a miss in the engine.
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Old Dec 20, 2003 | 01:50 PM
  #3  
TKOPerformance's Avatar
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Joined: Dec 2003
Posts: 2,391
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From: Newark, DE
Car: '86 Camaro, '02 WRX, '87 K5, '67
Engine: 350 TPI, 2.0turbo, 383 in the works, 289-4BBL, 232, A-head 4-cylinder
Transmission: T56, 5-speed, 700R4, C4, T176, semi-auto 2-speed
Axle/Gears: 3.73, 3.90, 4.88, 3.55, 3.54, 7.00
Hook up a timing light when the car is idling as see if the strobe is erratic. If it is you probably have a miss, or a really big cam. I would also do a compression and leakdown test to determine overall cylinder condition. Also, connecting a vaccum gauage nad looking for spikes in vaccum readings tells you a lot about how an engine is runnign too.

I agree thast if it's at idle you can rule out most of the drivetrain, though it could be the torque converter if you haev an automatic, but that would be pretty uncommon.
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Old Dec 21, 2003 | 05:47 PM
  #4  
CbrasTsteLkChk's Avatar
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From: VA, USA
Car: '84 Camaro SC/ I-ROC Body Conversio
Engine: Rebuilt 350 5.7L, Edelbrock 750cfm
Transmission: Re-built 700-R4
Axle/Gears: Moser, 3.73
My dash/steering wheel/console shake like a mother when i hit around 65-70 mph and up... what gives with that?
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Old Dec 21, 2003 | 07:21 PM
  #5  
85IrocNOH's Avatar
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From: Colonial Heights, VA
Car: 85 Iroc-Z
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 10-bolt 3.42
cbras, that's probably something with your tires/rims or possibly driveshaft. i know the original tires on my iroc were cupped pretty bad and i was scared to go over 40. once i got new z-rated tires, i was good to 90 or so and the aluminum driveshaft cured the rest
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Old Dec 21, 2003 | 08:19 PM
  #6  
383backinblack's Avatar
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From: Santa Monica, CA
Car: '91 Camaro RS
Engine: F1R Procharged 383
Transmission: Tremec 600
Axle/Gears: moser 12 bolt, 4.11's 33 spline axl
if it does it at idle when the car isnt moving, its either a misfire, a bad motor mount, or a bad tranny mount
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Old Dec 21, 2003 | 09:23 PM
  #7  
Insomniac92z28's Avatar
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From: Wellington, Kansas
Car: 92Z28
Engine: L98
Transmission: A4
Originally posted by 383backinblack
if it does it at idle when the car isnt moving, its either a misfire, a bad motor mount, or a bad tranny mount
If it's a tranny mount they are easy to test. FLOOR IT and if the tranny tries to hit your @ss you need a new mount.
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Old Dec 21, 2003 | 09:55 PM
  #8  
383backinblack's Avatar
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From: Santa Monica, CA
Car: '91 Camaro RS
Engine: F1R Procharged 383
Transmission: Tremec 600
Axle/Gears: moser 12 bolt, 4.11's 33 spline axl
Originally posted by Insomniac92z28
If it's a tranny mount they are easy to test. FLOOR IT and if the tranny tries to hit your @ss you need a new mount.

one time i was being captain cool guy and doin clutch drops in front of my buddy's house, and my trans mount broke.....the shifter came up to the top of the dash.....i was like holy s*it
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Old Dec 22, 2003 | 09:54 PM
  #9  
CbrasTsteLkChk's Avatar
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Posts: 230
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From: VA, USA
Car: '84 Camaro SC/ I-ROC Body Conversio
Engine: Rebuilt 350 5.7L, Edelbrock 750cfm
Transmission: Re-built 700-R4
Axle/Gears: Moser, 3.73
It's gotta be the driveshaft then bc the wheels and tires are just over a year old.
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Old Dec 23, 2003 | 09:48 AM
  #10  
Insomniac92z28's Avatar
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From: Wellington, Kansas
Car: 92Z28
Engine: L98
Transmission: A4
Does it shake when it's just sitting?

If so it's a miss. I'd suggest checking the plugs to find which is missing and replace them and check the cap/rotor for corrosion, possibly change the wires too. Sound like it needs a tuneup to me.
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