Auto Air Conditioning & Heater Repair: Air blows through defroster vent only, vacuum line, jeep wrangler

Question
I have a 03 Jeep Wrangler, When I turn on the heater or AC all
the
air blows through the Defroster vent. Will not blow through the
front side or bottom vents. Please help...

Answer
The most common fault is a vacuum line either rubber or plastic is broken in the engine compartment.

Look for where a vacuum line goes thru the firewall from the engine to the inside of the jeep and you will find a broken one.

Simply put a plastic connector in the broken line or replace the line.


If you can't find the vacuum line, I have a vacuum schematic. Contact me at meperganfortis@msn.com


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