Lockup convertor not locking up

[underated]

Ive noticed that when driving on long trips etc the engine check light comes on and the lockup convertor no longer engages...

This problem only happens every now and then and ive found that when I turn the ignition off and then on again its fine ..

Im quessing that its an electrical problem but dont know were to look..

Its a vr 5.0 caprice..cheers

[Sharpie]

had it happen on my old Vr v6 towing a ski going to Mildura from Melb. It would only happen once it had traveled for an hour or two and it ended up being too much slip in the torque converter. Auto out job.

[underated]

Its got a 2500 stall and the box has been shift kitted,it drives perfect when the light doesnt come on...

[Brett_jjj]

Check the transmission wiring and its connector for shorted out or broken wires or corrosion on the connector pins.

[underated]

cheers brett ill give it all a good look over and give the connector a squirt with wd40...hope its something simple..

[hako]

Do a fault code check as the engine light coming on and no lockup can be caused by a solenoid fault (there are 4 of these) in the transmission which will leave a code. Checking error codes VR/VS (Revised)

[underated]

Thanks mate ill check it out also...