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02 - SES P0744 TCC Solenoid Valve Fault Forums > > 02 - SES P0744 TCC Solenoid Valve Fault 02 - SES P0744 TCC Solenoid Valve Fault
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Old 12-29-2009, 04:13 PM
mantis102
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Question 02 - SES P0744 TCC Solenoid Valve Fault

Hi

I have an 02 Pathfinder that just hit 140,000 miles today. The "Service Engine Soon" light is on, and the fault code is P0744 - Torque converter clutch solenoid valve fault.

Prior to the light coming on, the car would jerk forward and back at highway speeds. About once per week. I describe it like this - when someone is driving a car with a manual transmission, and lets the clutch off too fast when shifting, and the car jerks into gear.

The first time it happenned, the transmission fluid was old. I had it changed, but the problem persists.

Any ideas on what this means?? Does it sound like a $ problem or a $$$$ problem? With this many miles, is it time to retire the old girl?

Thanks
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Old 12-29-2009, 07:59 PM
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Quote:
Any ideas on what this means??
The torque converter lock system is not locking when it should (lock converter = 4th gear). It could be due to a bad lock up solenoid, an obstruction in the line (inside the valve body), the line pressure solenoid or the clutches.

Quote:
Does it sound like a $ problem or a $$$$ problem?
It's possible, considering it has 140K
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