Question about Lexus Cars & Trucks
Do i need a new tranny or could it be a sensor ?
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Posted on Jan 02, 2017
SOURCE: slipping transmission when hot
Check the fluid level and make sure it is up.If o/k then suggest a trans service which will have the filter and fluid changed. This could be your problem.
Posted on May 18, 2009
ihave the same problem, the engine started to act like it was skipping then the tranny just gave out any one find out what is the problem 2000 s 80
Posted on Sep 16, 2009
Without the information as to why you had the Tranny rebuilt at 51K, I can share with you most likely the problem as per my experience with these units. The Valve body or Block depending on the year is going to be the accused problem as well as repair. Yet the reason most fail is actually the Servo inside the Trans Case itself.
Some common complaints associated with a 5R55S / 5R55W are high TCC slip RPMs under increasing loads, slip codes, and converter apply or release concerns. These complaints are often caused by wear at the ID of the TCC modulator plunger valve sleeve, due to constant oscillation by the pulse width modulated TCC solenoid. This plunger valve positions the TCC modulator valve, which feeds line to the apply circuit, which controls slip rate. Wear of the sleeve will allow the TCC slip rate to continue to rise, and could prevent full lockup.
The Servo kit assemblie restores hydraulic integrity to the TCC solenoid circuit with precisely tolerance parts. The elevated modulated pressure, will not raise apply pressure to the point of TCC piston fatigue, and will result in firmer TCC apply and reduced slip RPM in heavier use applications.
02 Explorers built prior to 03/04/02 with a 5R55W Tranny; can show no 3rd Gear, or slippage in 2-3 gear, with diagnostic codes P0733 & PO745 present.This may be due to a broken Band. Two tests will easily confirm or deny this problem.
Most assuridly the valve body or block will need to be replaced. But further investigation as to why should be a concern or the Valve Body or Block will be no more than a band aid. Repeating itself within a few months. Improper dianosis for these units are why so many Ford Owners are constantly bad mouthing explorers in the Forums.
Posted on Jun 23, 2010
The mechanics lied to you. Changing the transmission fluid and screen will not cause any car not to run. Just as you need to periodically change the oil, the same holds true for transmission fluid. Though the fluid is black, yoou state that you have no slippage or nothing out of the ordinary. If that is the case, then you do not need a new transmission. Just have the fluid and screen replaced and all will be fine. Make sure to pick up a transmission pan gasket while you get the necessary fluid and screen. Again, changing the fluid will not cause any car to not run. It is safe to perform the fluid change.
Posted on Jul 03, 2010
Testimonial: "im really glad to hear that because the transmision mechanics is telling me to get a new transmision "
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