1990 GMC 1st and Reverse only
Thread Starter
Junior Member
Joined: Jul 2004
Posts: 5
Likes: 0
From: Baton Rouge LA
Car: Jaguar and GMC van
Engine: 350 /5.7 L
Transmission: 1990 THM700R4
1990 GMC 1st and Reverse only
While at a red light - Iheard a slight metallic sound -TING!
When the light turned Green -- Iapplied the throttle and the vehile would not move - With the SElector in Overdrive , Drive OR D2-. When I placed the Selector IN LOW -- THE Vehicle acelerated Very Well-- I Was able to Drive Home - The Vehicle has good Power adn PULL in LOW and REverse ONLY .
I cheecked the Thottle Valve Cable lingage And IT will Operate and Extend approximatelly 1 Inch. .... Do I need to Pul the TV cable at the transmission end for cable issues?
All help would be appreciated ----Should I pull The Govenor --
Please Help - with your suggestions!!! Thanks
When the light turned Green -- Iapplied the throttle and the vehile would not move - With the SElector in Overdrive , Drive OR D2-. When I placed the Selector IN LOW -- THE Vehicle acelerated Very Well-- I Was able to Drive Home - The Vehicle has good Power adn PULL in LOW and REverse ONLY .
I cheecked the Thottle Valve Cable lingage And IT will Operate and Extend approximatelly 1 Inch. .... Do I need to Pul the TV cable at the transmission end for cable issues?
All help would be appreciated ----Should I pull The Govenor --
Please Help - with your suggestions!!! Thanks
Supreme Member
Joined: Jan 2002
Posts: 1,322
Likes: 1
From: Bloomingdale,IL
Car: 91 RS
Engine: 305 Tbi (L03)
Transmission: 700r4
Those are two possible causes for your problem. I would look into the manuel valve in the trans.
Last edited by dankhound; Jul 21, 2004 at 06:21 PM.
Thread Starter
Junior Member
Joined: Jul 2004
Posts: 5
Likes: 0
From: Baton Rouge LA
Car: Jaguar and GMC van
Engine: 350 /5.7 L
Transmission: 1990 THM700R4
Originally posted by dankhound
Those are two possible causes for your problem. I would look into the manuel valve in the trans.
Those are two possible causes for your problem. I would look into the manuel valve in the trans.
I will not have time to pull the governor or drop the pan to check the Valve til this weekend. If their are any other suggestions or ideas please let me know
Supreme Member
Joined: Apr 2004
Posts: 3,067
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From: Staunton,illinois
Car: 1966 impala , 1998 sebring vert,1978 buick regal turbo, 1991 chevy silverado 3/4ton 4x4 lifted
Engine: 283, 2.5,3.8 turbo 350
Transmission: powerglide,auto overdrive, th350,4L80
pull the tv cable off the throttle linkage and pull out on it to see if its still got tension against it
Thread Starter
Junior Member
Joined: Jul 2004
Posts: 5
Likes: 0
From: Baton Rouge LA
Car: Jaguar and GMC van
Engine: 350 /5.7 L
Transmission: 1990 THM700R4
Originally posted by thegeneral
pull the tv cable off the throttle linkage and pull out on it to see if its still got tension against it
pull the tv cable off the throttle linkage and pull out on it to see if its still got tension against it
It retracted.
Supreme Member
Joined: Apr 2004
Posts: 3,067
Likes: 0
From: Staunton,illinois
Car: 1966 impala , 1998 sebring vert,1978 buick regal turbo, 1991 chevy silverado 3/4ton 4x4 lifted
Engine: 283, 2.5,3.8 turbo 350
Transmission: powerglide,auto overdrive, th350,4L80
well its not broken or came disconected then .....sounds like you need to drop the pan and check out the insides more
sorry i couldnt help
sorry i couldnt help
Thread Starter
Junior Member
Joined: Jul 2004
Posts: 5
Likes: 0
From: Baton Rouge LA
Car: Jaguar and GMC van
Engine: 350 /5.7 L
Transmission: 1990 THM700R4
Originally posted by thegeneral
well its not broken or came disconected then .....sounds like you need to drop the pan and check out the insides more
sorry i couldnt help
well its not broken or came disconected then .....sounds like you need to drop the pan and check out the insides more
sorry i couldnt help
would the Transmission be able to go in Reverse and Pull with the shift selector in D1 (LOW) if the Govenor were bad or stripped
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Supreme Member
Joined: Jan 2002
Posts: 1,322
Likes: 1
From: Bloomingdale,IL
Car: 91 RS
Engine: 305 Tbi (L03)
Transmission: 700r4
If the govener were bad it should move in all gears. It just wouldnt shift. Another thing that makes me thinks its somewhere other than the govener is that you said it made a noise when you were stopped. The govener is only moving when the car is in motion.
Thread Starter
Junior Member
Joined: Jul 2004
Posts: 5
Likes: 0
From: Baton Rouge LA
Car: Jaguar and GMC van
Engine: 350 /5.7 L
Transmission: 1990 THM700R4
Originally posted by dankhound
If the govener were bad it should move in all gears. It just wouldnt shift. Another thing that makes me thinks its somewhere other than the govener is that you said it made a noise when you were stopped. The govener is only moving when the car is in motion.
If the govener were bad it should move in all gears. It just wouldnt shift. Another thing that makes me thinks its somewhere other than the govener is that you said it made a noise when you were stopped. The govener is only moving when the car is in motion.
I will let you know what everything looks like
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