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Old 17 Aug 2003, 02:31 am
Fred
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Default Weird 91 Integra GS Automatic Transmission Problem

Weird 91 Integra GS Automatic Transmission Problem

This has me stumped. At first I thought the intermittent stalling and
very rough idle, while at a red light while in drive, was an
engine(fuel) issue.

However, I discovered that it is my transmission. After the car is
driven for approx. 15 - 20 miles, while at a red light or stop, while
in drive, reverse, or other gear position, the idle abruptly drops and
becomes very rough and shakes (similar to letting out the clutch too
soon when starting out in a manual transmission equipped car)

I discovered accidentally, while stopped on an upgrade in which the
normal idle would hold the car from going backwards (without the brake
applied), the car suddenly began this rough idle symptom. Low and
behold when it began, the idle dropped and the car began to move
forward. My first thought was that maybe the torque converter engaged
in locked up. At that point I disconnected the lock up solenoid
assembly and took it for a ride. The problem still existed.

I checked the fluid and it looks and smells good. I have no codes on
the ecu. The problem only occurs when the transmission is at operating
temp. When cold, it does not happen. This is driving me up a wall.

Any ideas?
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  #2 (permalink)  
Old 17 Aug 2003, 08:21 am
Scott A. Bregi
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Default Re: Weird 91 Integra GS Automatic Transmission Problem

It sounds like a bad ground somewhere. Ensure all ground straps from the
transmission to the chassis are/is good and tight and not deteriorated in
any way. Check the connections to the transmission control module (if any),
ensure there is no corrosion or bad wires. If you can try another module,
possibly from a junker. Also check the throttle position sensor and or idle
speed control. This controls and monitors the throttle and increases fuel
delivery when the engine is under load and needs more fuel to keep up RPM's.

--
Scott A. Bregi

Model Building is FUN!.........model building is fun.......model building is
?$#!!*?##!%$?&%$##!!



"Fred" <fred@freddyfreeloader.com> wrote in message
news:2daujv80hpjon0g7fjpgp44iaammik7fkq@4ax.com...
> Weird 91 Integra GS Automatic Transmission Problem
>
> This has me stumped. At first I thought the intermittent stalling and
> very rough idle, while at a red light while in drive, was an
> engine(fuel) issue.
>
> However, I discovered that it is my transmission. After the car is
> driven for approx. 15 - 20 miles, while at a red light or stop, while
> in drive, reverse, or other gear position, the idle abruptly drops and
> becomes very rough and shakes (similar to letting out the clutch too
> soon when starting out in a manual transmission equipped car)
>
> I discovered accidentally, while stopped on an upgrade in which the
> normal idle would hold the car from going backwards (without the brake
> applied), the car suddenly began this rough idle symptom. Low and
> behold when it began, the idle dropped and the car began to move
> forward. My first thought was that maybe the torque converter engaged
> in locked up. At that point I disconnected the lock up solenoid
> assembly and took it for a ride. The problem still existed.
>
> I checked the fluid and it looks and smells good. I have no codes on
> the ecu. The problem only occurs when the transmission is at operating
> temp. When cold, it does not happen. This is driving me up a wall.
>
> Any ideas?



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