Two 'words': PB Blaster. This corrosion buster finally broke the antenna mast and ferrule free from the housing and allowed me to pull the old mast free, with ferrule, which is actually a bit of copper or brass at the top of a metal sleeve the mast slides into and then drops inside the housing (argh...

That's a very helpful suggestion MiJ. I'll give it a shot. Thanks, and still open to any other suggestions.

Greetings all. This is a 1996 Volvo 850 that won't return to idle once the accelerator is depressed. I've cleaned the throttle body and made sure the plate is unobstructed and moving freely. The throttle wheel moves freely to open throttle, but does not close when foot off pedal. I can manually roll...

Greetings. I've followed the instructions for replacing the power antenna mast in a U.S. 1996 850 GLT, but can't extract the broken mast from the motor housing. Instructions calling for removing a 16mm nut don't seem to apply. I've opened and cleaned the housing for the plastic spline and found no b...