1995 Ford E-150 Q&A

1995 Ford E-150 Question: 95 conversion van ac blows in front but warm air blows out rear vents why?

when van is pulling the air flow in front changes from front vents to defrost vents.Have checked rear fuses at loss help. -
Answer 1
REAR UNIT HAS BLOCKAGE PROB. EXPANSION VALVE IS WHY IT BLOWS WARM AIR. VACUUM LEAK PROB. UNDER HOOD IN SMALL VAC. TUBE OR CHAMBER IS WHY SWITCHING VENT TO DEFROST. SEE MECHANIC. -
Comment 1
what could have caused the blockaged? This happened about 3 mo. ago. Is there someway I can check without going to mechanic am on a fixed income. Thank You very much.I will show this to my son and check this out. -
Comment 2
AN INLINE FILTER IS AVAIL. AT NAPA OR POSS. OTHER PARTS STORES. HAD TO PUT ONE IN MY CHEVY. AFTER CLEANING IT 2 TIMES I GOT TIRED OF THAT, THE FILTER WORKED FOR ME. AS FOR YOUR VACUUM LEAK LOOK FOR SMALL PLASTIC TO RUBBER HOSE GOING INSIDE THROUGH FIREWALL. IT IS PROB. BROKEN OR UNHOOKED. -