05-24-2005, 08:11 PM
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#1
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AF Newbie
Join Date: Oct 2004
Location: Victoria
Posts: 90
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Problem with Overdrive
In my 94 3.4L, whenever I put it into overdrive and try accelerating above like 105-110 km/h, the engine moans and sounds like it's dying...then I put it into regular drive and accelerate and it sounds normal. When it's in overdrive though, it just sounds like something is powering down, if you can think to whatever sci-fi movie as a reference point. I'm not sure what to think of this-it's my first car, and for all I know this could be normal, but I doubt it.
Any input?
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05-25-2005, 12:30 AM
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#2
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AF Enthusiast
Join Date: Jan 2004
Location: Fayetteville, Arkansas
Posts: 2,561
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sure as hell sounds like a tranny or torque converter problem... i don't know much about auto trannies so i'm not sure what all is involved in overdrive...
__________________
'92 RS lt1/t56, lt4 hot cam, 30lb injectors, 54mm throttle body, full exhaust, 4.11 posi, 4 coil ignition, alluminum driveshaft, adj rear suspension, low. springs, electric water pump, custom tune.
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05-25-2005, 01:49 PM
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#3
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AF Newbie
Join Date: Oct 2004
Location: Victoria
Posts: 90
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Re: Problem with Overdrive
So what kind of shop should I take it to just a general mechanic?
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05-25-2005, 01:54 PM
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#4
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AF Enthusiast
Join Date: Jan 2005
Location: Dorchester, Massachusetts
Posts: 2,168
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Is it red lining? Is the speedo and tach going down? I assume your still in WOT.
__________________
87 IROC - R.I.P, and she will never be forgotten 
90 RS - The beginning of a new era... I hope.
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05-25-2005, 05:33 PM
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#5
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AF Fanatic
Join Date: Nov 2003
Location: Alexandria, Virginia
Posts: 7,150
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Re: Problem with Overdrive
it may be a bad lockup clutch or related part. the converter only locks up in overdrive. So when it goes into overdrive, it may be engaging a failed lockup clutch. in any case, the dealership is the best place to take your car in my opinion. They have GM trained tranny specialists. Thats who i go to.
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Chevrolet Camaro - I enjoy beating the hell out of people  
http://www.automotiveforums.com/vbulletin/showthread.php?t=68052
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05-25-2005, 05:52 PM
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#6
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AF Enthusiast
Join Date: Jan 2004
Location: Fayetteville, Arkansas
Posts: 2,561
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yea dealers are alot less likely to bs u on what is wrong with your car... seen too many average mechanics who just try to milk u for all of ur money w/out ever actually fixing anything...
__________________
'92 RS lt1/t56, lt4 hot cam, 30lb injectors, 54mm throttle body, full exhaust, 4.11 posi, 4 coil ignition, alluminum driveshaft, adj rear suspension, low. springs, electric water pump, custom tune.
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