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Flashing Ect Pwr Light


GPH1
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The ECT PWR dashboard light on my 98 GS300 has been flashing on and off with monotonous regularity for the last week. Just got back from the local dealers who have diagnosed a faulty 'No 3 shift solenoid' in the gearbox.

The cost of the part is 240 quid with another 600-odd for labour. They also say that they may find other problems when they've got the gearbox out so it could be even more than the quoted all in cost of £878! The problem is that there are no other symptoms, the car is running really well, all I've got is an irritating flashing light and £878 is a lot of money to fix that!

Obviously I don't want to take any chances with the gearbox but does anyone know what this solenoid actually does? If I don't get it fixed is the gearbox going to suddenly pack up on me?

Any help/advice gratefully received

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Hi,

You appear to be in the LS forum with a GS problem but hey it's still a Lexus :D

The shift solenoids operate various valves and therefore the routing and pressure of the hydraulic fluid within the gearbox to change up and down the gears and select reverse there are normally 3 or 4 involved.

Don't understand the high labour cost but the solenoids are normally accessed by removing the gearbox sump pan and then they unbolt.

Could be worth getting a second opinion from an auto tranmission specialist 1st, I also seem to remember a member on here doing their own solenoids.

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