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11-15-2011, 11:48 AM
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#1 |
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Registered User
 Join Date: Aug 2010
Location: Mt Olive/Prentiss MS
Posts: 48
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350 Transmission
I have a 85 Scottsdale and the new problem I am having is this, when the trans is put in gear the engine vibrates. It does not matter what selection I make forward or reverse.
The trans was overhauled w/new torque converter and only has about 80 miles on it. Has anyone had this problem or know what this could be? Last edited by Scottsdale Doc; 11-15-2011 at 11:49 AM. Reason: left out my question |
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11-15-2011, 12:17 PM
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#2 |
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Registered User
Join Date: Jul 2010
Location: memphis
Posts: 2,537
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Re: 350 Transmission
Could be you tune is off...unless there is something wacky with your flywheel or torque converter
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1981 C-10 (Pop's) 1978 Camaro 2006 Lacrosse |
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11-15-2011, 12:22 PM
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#3 |
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Registered User
Join Date: Aug 2010
Location: Mt Olive/Prentiss MS
Posts: 48
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Re: 350 Transmission
Thanks do you know how to determine if the torque converter is bad????
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11-15-2011, 01:26 PM
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#4 | |
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Registered User
Join Date: Oct 2011
Location: Emory TX
Posts: 900
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Re: 350 Transmission
Quote:
Sounds like a miss or maybe carb half stopped up or vacuum leak. Does it change with rpm? |
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11-15-2011, 01:44 PM
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#5 |
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Registered User
Join Date: Aug 2010
Location: Mt Olive/Prentiss MS
Posts: 48
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Re: 350 Transmission
Thanks= It only vibrates when you are stopped and as soon as you accellerate (or start moving) it stops.
The engine runs pretty smooth when it is in park. I will check the vaccum just to be sure. |
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11-15-2011, 01:46 PM
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#6 |
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One shot, one kill.
Join Date: Dec 2007
Location: Saratoga Springs NY
Posts: 859
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Re: 350 Transmission
RS 72 is right. A bad converter or flywheel will vibrate without reguard for in or out of gear. If it is smooth in neutral or park the coverrter is ok. Is the vac modulator hooked up properly? How about the dist cap? I can't count the number of times I half knocked the cap off pulling a trans. Check secondary wireing also. jim
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1984 K20 350M engine with 465,000 miles. Well, it's finally done!! Almost 2 years of work, but it was really worth the effort. Little stuff left to do is mount winch, wet sand & buff out and build belly pan\running boards. Body work takes lots and LOTS of beer!!!! God, Guts and Guns made America and God, Guts and Guns will preserve it! The worst thing you could do is get into my sights, but that don't matter, you'll never know it, cause you'll never hear the shot  Jim or Paladin whichever you choose.
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11-15-2011, 07:56 PM
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#7 |
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Registered User
Join Date: Jul 2010
Location: memphis
Posts: 2,537
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Re: 350 Transmission
then you carb or timing is off..or you knocked a vac line off somewhere..
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1981 C-10 (Pop's) 1978 Camaro 2006 Lacrosse |
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11-17-2011, 01:58 AM
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#8 |
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Registered User
Join Date: Dec 2010
Location: sioux city, iowa
Posts: 619
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Re: 350 Transmission
Broken engine mount or trans mount? Have someone watch under the truck as you power brake it.
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11-17-2011, 06:13 AM
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#9 |
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Registered User
Join Date: Oct 2006
Location: iowa
Posts: 722
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Re: 350 Transmission
another thing to check is that all the bellhousing bolts are tight. have also had loose torque converter bolts do something similar. would vibrate in low rpm cruising speeds. tightened them up and it went away.
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"Horsepower is how fast you hit the wall, torque is how far you carry the wall with you." '84 chevy half ton short box 2wd, 67,000 actual miles  '03 chevy 1500 HD crew cab 4x4 standard box, 6.0L
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