700R4 Automatic problems
09-11-2009, 07:23 AM
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Car: 1992 Formula/2008 Mazda6
Engine: 305 5.0L TBI/2.3L tuned
Transmission: 700R4/5-speed auto
700R4 Automatic problems
I come to you all for a bit of help. I've a 1989 Camaro RS, with too many problems to list. I'm concerned about my transmission, and would appreciate any advice on how to fix the problems I'm going to list:
-It takes 3-4 seconds to shift into OD or D.
-Sometimes, when I come to a stop, the engine will die. I have to keep my foot on the accelerator to keep it from doing so. A friend told me that it was the Torque Converter, and if so, how would one go about fixing it?
-Reverse works fine, it shifts into it normally.
-The big problem: OD and D shifting. On a normal start, when the engine is cold, and I start driving, it shifts like normal. For instance:
1 to 2: 10mph
2 to 3: 25mph
3 to 4: 35mph
4 to Overdrive: Kills the engine once it warms up enough that it wants to shift. Such as, once it hits 150-180 degrees, and it's in 4th gear going about 45-50 mph, and it tries to shift, it shakes and chugs. I had tried flooring it to make it stop trying to shift into overdrive, but it would still bog it down. Then, once it died, I could start the car, but it'd die again, even in neutral. I've tried driving in D, but the same thing happens. Once it warms up enough, it tries to shift early, and kills itself going into 4th. I've tried throwing it into neutral when it tries to kill itself, and when coming to a stop, but it will still kill it. Mind you, this only happens if I start to drive it around when it's cold.
However...
I've temporarily solved this problem by letting the car warm up fully before I drive it, and then it shifts like this:
1 to 2: 10mph
2 to 3: 20mph
3 to 4: 30mph
4 to overdrive: 35mph
It doesn't kill the engine then, but it feels like it's shifting way too early. What could my problem be? I don't mind having to wait for it to warm up fully, but if I'm in a rush, it's just a pain to have to wait.
-It takes 3-4 seconds to shift into OD or D.
-Sometimes, when I come to a stop, the engine will die. I have to keep my foot on the accelerator to keep it from doing so. A friend told me that it was the Torque Converter, and if so, how would one go about fixing it?
-Reverse works fine, it shifts into it normally.
-The big problem: OD and D shifting. On a normal start, when the engine is cold, and I start driving, it shifts like normal. For instance:
1 to 2: 10mph
2 to 3: 25mph
3 to 4: 35mph
4 to Overdrive: Kills the engine once it warms up enough that it wants to shift. Such as, once it hits 150-180 degrees, and it's in 4th gear going about 45-50 mph, and it tries to shift, it shakes and chugs. I had tried flooring it to make it stop trying to shift into overdrive, but it would still bog it down. Then, once it died, I could start the car, but it'd die again, even in neutral. I've tried driving in D, but the same thing happens. Once it warms up enough, it tries to shift early, and kills itself going into 4th. I've tried throwing it into neutral when it tries to kill itself, and when coming to a stop, but it will still kill it. Mind you, this only happens if I start to drive it around when it's cold.
However...
I've temporarily solved this problem by letting the car warm up fully before I drive it, and then it shifts like this:
1 to 2: 10mph
2 to 3: 20mph
3 to 4: 30mph
4 to overdrive: 35mph
It doesn't kill the engine then, but it feels like it's shifting way too early. What could my problem be? I don't mind having to wait for it to warm up fully, but if I'm in a rush, it's just a pain to have to wait.
09-11-2009, 08:53 AM
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Car: 84' Corvette, 96' Caprice
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Axle/Gears: 3.07 POSI, 2.93 Open
Re: 700R4 Automatic problems
I come to you all for a bit of help. I've a 1989 Camaro RS, with too many problems to list. I'm concerned about my transmission, and would appreciate any advice on how to fix the problems I'm going to list:
-It takes 3-4 seconds to shift into OD or D.
-Sometimes, when I come to a stop, the engine will die. I have to keep my foot on the accelerator to keep it from doing so. A friend told me that it was the Torque Converter, and if so, how would one go about fixing it?
-Reverse works fine, it shifts into it normally.
-The big problem: OD and D shifting. On a normal start, when the engine is cold, and I start driving, it shifts like normal. For instance:
1 to 2: 10mph
2 to 3: 25mph
3 to 4: 35mph
4 to Overdrive: Kills the engine once it warms up enough that it wants to shift. Such as, once it hits 150-180 degrees, and it's in 4th gear going about 45-50 mph, and it tries to shift, it shakes and chugs. I had tried flooring it to make it stop trying to shift into overdrive, but it would still bog it down. Then, once it died, I could start the car, but it'd die again, even in neutral. I've tried driving in D, but the same thing happens. Once it warms up enough, it tries to shift early, and kills itself going into 4th. I've tried throwing it into neutral when it tries to kill itself, and when coming to a stop, but it will still kill it. Mind you, this only happens if I start to drive it around when it's cold.
However...
I've temporarily solved this problem by letting the car warm up fully before I drive it, and then it shifts like this:
1 to 2: 10mph
2 to 3: 20mph
3 to 4: 30mph
4 to overdrive: 35mph
It doesn't kill the engine then, but it feels like it's shifting way too early. What could my problem be? I don't mind having to wait for it to warm up fully, but if I'm in a rush, it's just a pain to have to wait.
-It takes 3-4 seconds to shift into OD or D.
-Sometimes, when I come to a stop, the engine will die. I have to keep my foot on the accelerator to keep it from doing so. A friend told me that it was the Torque Converter, and if so, how would one go about fixing it?
-Reverse works fine, it shifts into it normally.
-The big problem: OD and D shifting. On a normal start, when the engine is cold, and I start driving, it shifts like normal. For instance:
1 to 2: 10mph
2 to 3: 25mph
3 to 4: 35mph
4 to Overdrive: Kills the engine once it warms up enough that it wants to shift. Such as, once it hits 150-180 degrees, and it's in 4th gear going about 45-50 mph, and it tries to shift, it shakes and chugs. I had tried flooring it to make it stop trying to shift into overdrive, but it would still bog it down. Then, once it died, I could start the car, but it'd die again, even in neutral. I've tried driving in D, but the same thing happens. Once it warms up enough, it tries to shift early, and kills itself going into 4th. I've tried throwing it into neutral when it tries to kill itself, and when coming to a stop, but it will still kill it. Mind you, this only happens if I start to drive it around when it's cold.
However...
I've temporarily solved this problem by letting the car warm up fully before I drive it, and then it shifts like this:
1 to 2: 10mph
2 to 3: 20mph
3 to 4: 30mph
4 to overdrive: 35mph
It doesn't kill the engine then, but it feels like it's shifting way too early. What could my problem be? I don't mind having to wait for it to warm up fully, but if I'm in a rush, it's just a pain to have to wait.
4 IS the overdrive gear, the Torque converter lockup is the only thing after 4th.....
09-11-2009, 09:10 AM
#3
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Car: 1992 Formula/2008 Mazda6
Engine: 305 5.0L TBI/2.3L tuned
Transmission: 700R4/5-speed auto
Re: 700R4 Automatic problems
Alright, I knew that 4th was Overdrive, but was just listing it as a gear shift for the sake of being orderly.
So, is it my torque converter? That still doesn't explain why it shifts super-early.
So, is it my torque converter? That still doesn't explain why it shifts super-early.
09-11-2009, 10:53 AM
#4
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Car: 89 camaro rs
Engine: 383 .06 over
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Axle/Gears: 3.73 10 bolt
Re: 700R4 Automatic problems
You should really check you TV (throttle valve) cable. If that cable is not set properly it will affect your shifting.
09-11-2009, 03:18 PM
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Car: 1992 Formula/2008 Mazda6
Engine: 305 5.0L TBI/2.3L tuned
Transmission: 700R4/5-speed auto
Re: 700R4 Automatic problems
I checked that already and made sure it was properly set. Went through the procedure, and went to WOT, and heard the clicks.
Any idea what a bad torque converter would do? How it would act?
Any idea what a bad torque converter would do? How it would act?
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09-14-2009, 02:11 PM
#8
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Car: 1992 Formula/2008 Mazda6
Engine: 305 5.0L TBI/2.3L tuned
Transmission: 700R4/5-speed auto
Re: 700R4 Automatic problems
Forget I made this post.
Last edited by Firebird_Sadie; 09-15-2009 at 11:28 AM. Reason: Found out what I needed.
09-22-2009, 09:04 PM
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Re: 700R4 Automatic problems
why? was it the Tv cable??
Mine has a similar problem and it started when i did a carb swap... Mu Tv cable is busted up and I am sure thats it on mine... Probably same as you if it isnt to late ...
Mine has a similar problem and it started when i did a carb swap... Mu Tv cable is busted up and I am sure thats it on mine... Probably same as you if it isnt to late ...
09-23-2009, 07:20 AM
#10
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Car: 1992 Formula/2008 Mazda6
Engine: 305 5.0L TBI/2.3L tuned
Transmission: 700R4/5-speed auto
Re: 700R4 Automatic problems
Well, what's happening is that my ECM is telling my transmission to do weird things, on two different sets of actions. So, I just need to replace the ECM (Should get it soon).
09-23-2009, 08:29 PM
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Car: 1992 Formula/2008 Mazda6
Engine: 305 5.0L TBI/2.3L tuned
Transmission: 700R4/5-speed auto
Re: 700R4 Automatic problems
Those would be my problems...
Sorry about not mentioning them earlier. It'd bog down the engine as I'd come to a stop, and kill it.
Sorry about not mentioning them earlier. It'd bog down the engine as I'd come to a stop, and kill it.
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