Tag: AW55-50SN

MVS logo - fist holding a wrench

AW 55-50SN Transmission Solenoid DIY Success

To say it was a nerve racking experience is an understatement. TOTAL concentration is required and no interruptions while working if this isn’t your forte and you’re a first timer. The car was at my MILs and she was away at the time so I had uninterrupted time on the project.

Dropping the subframe wasn’t that difficult. I used the procedure from the repair database on Matthews. Hardest part was refitting one bolt for the trans line and dipstick which would have been a cinch if I’d removed the clamp on the hose going to the intercooler from the throttle body.

MVS logo - fist holding a wrench

2001-2007 AW55-50SN Valve Body Re-assembly

MVS Forums Contributor Mike (precopster) shares a video he made of his valve body re-assembly, and much more about 2001-2007 (in North America, 2000-2008 in Australia) Volvo AW55-50SN transmissions.

If you have undiagnosed banging noises on downshifts, and RPM flares, you would likely benefit from the information in this topic, even if you end up having the work done.

2002 Volvo AW55-50SN Transmission Disengages While Driving

The disengagement feels like something is not locking up, like the converter. The disengagement happens more in the city when I am starting and stopping, but it still happens on the freeway. For example on the freeway at 70 mph, the car all of a sudden goes into limp mode or the trans disengages. At this moment, the car starts coasting and I step on the gas, but obviously no response – the rpms goes up slightly to sometimes to 2 or 3000 rpms, and then the car kicks back into gear. This disengagement period happens for a minute or it can go on for 5, or 10 miles.