Windshield defroster not blowing
Hi everyone. We have a 2008 Allegro QBD on the Freightliner front engine diesel chassis. Last weekend the windshield defroster stopped working. Nothing blows from the ducts under the windshield, w...
Forum Discussion
Don't know about front engine diesel's but many DP's have a small vacuum pump behind the dash that supplies vacuum to operate heater related options. Could be your situation is caused by broken or loose hoses. Check with Tiffin or ask your question on Tiffin forum. Good luck.
