Stalling, Whirring and Clicking – Torque Converter or Solenoid?

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August 2, 2017 at 1:26 pm #9883

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Here is my problem. I have a 2003 Toyota Corolla. About 119k miles on it. About 10-15k miles ago I had a problem with the transmission. When the car warmed up, the car seemed to be stuck in neutral. So, my mechanic put all new tran. fluid and filter. Ran great. The most recent problem happened when I was on the highway going home from work. Came to a stop light, and the car stalled. Turned it back on, put it in gear, stalled again. Putting it in drive or reverse did the same thing.

Had it towed to my mechanic. He didn’t really do anything but it started working again while he had it. His thought was the torque converter was locked up and unlocked by itself. It gave no codes at all. It shifts fine but there is a whining sound and you can hear it when accelerating. The RPM’s are high while idle in Park. As soon as you put it in gear the RPM’s drop but the whining is still there. Also there seems to be some strange clicking noises but I can’t tell where they are coming from.

So, I decided I better shop for a transmission. Found a shop that would replace it, but I wanted them to look at it first. They could find nothing wrong and said it could be a solenoid. They suggest I take it to an actual transmission specialist. That’s where I’m at. Any suggestions?

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August 3, 2017 at 2:43 am #9894

Hostgator
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I would advise you to hold off on dropping in a rebuilt transmission until you have tried something. Have the transmission specialist look closely at the clutches/bands. You see, if the clutches don’t engage smoothly — or at all — your car won’t move. The Corolla will start and just sit there with the engine spinning away. The same is true of the clutches partner in transmission operation, the bands. The bands operate by tightening the linkages between the engine and transmission so the transmission operates as efficiently as possible.

The clutches/bands also make sure that the transmission shifts smoothly from gear to gear.

Please note that if there is a problem with the the transmission parts then an error code will be generated that can be read with the OBD-II software and diagnostic tool. So, you can be sure that this isn’t the primary culprit and cause of your problem. Indeed, I suspect the problem with your Corolla involves mechanical systems, rather than transmission-related systems.

Given that I would look closely at the sensors that are located on or at the wheels or on or at the or the sensors that are on or at the half-shafts that. The failure of these sensors will render the vehicle undriveable.
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