HERE'S YOU SOME DIAGRAMS OF THE HEATER AND A/C
I'VE NOT DEALT WITH A TJ's HVAC
I DO SORTA KNOW WHAT TO LOOK FOR/AT
http://www.jeep4x4center.com/air-conditioning-heating/wrangler-tj.htm
LOOKS LIKE IT'S VACUUM OPERATED---SEE # 13...THERE'S 3 OF 'EM
THESE CONTROL DOORS INSIDE THE BOX
IF YOUR HOSES ARE GETTING HOT....THE HEAT IS "THERE"....YOU JUST GOTTA TURN IT LOOSE!
HERE'S WHAT COULD BE GOING ON
1) NO VACUUM TO THE CONTROLS---THIS MAY BE A LOOSE LINE UNDER THE DASH OR UNDER THE HOOD (A VACUUM LEAK)
2) NO VACUUM FROM THE CONTROLS TO THE ACTUATORS....BAD CONTROLS...LOOSE LINE
3) VACUUM ACTUATOR(S) BROKE OR STUCK...OR THE VACUUM HOSE IS OFF (BASICALLY A VACUUM LEAK WHICH MAY BE AFFECTING ENGINE PERFORMANCE)
4) ACTUATOR LINKAGE CAME LOOSE FROM A DOOR (ACTUATOR WORKS, BUT DOES NOTHING)
5) DOOR HAS COME LOOSE--OR IS STUCK (I'VE SEEN SPILLED SOFT DRINKS SORTA GLUE 'EM SHUT)
ALL THESE ACTUATORS SHOULD WORK ON CERTAIN CONTROL SETTINGS (I DON'T KNOW WHICH CONTROLS WHAT)
A HAND MIRROR AND A FLASHLIGHT MIGHT LET YOU SEE WHATS GOING ON UNDER THE DASH....AS YOU RUN THE CONTROLS THRU THEIR SETTINGS
REMOVING THE VACUUM HOSES FROM THE ACTUATORS, ONE AT A TIME, WITH YOUR FINGER OVER THE HOSE'S HOLE...OPERATE THE CONTROLS TO SEE VACUUM DOES REACH THE ACTUATORS (IF THEY WERE NOT MOVING).....MAYBE A BAD ACTUATOR?
YOU MIGHT ALSO "GENTLY HELP" THE ACTUATOR LINKAGE, TO GET A DOOR UNSTUCK
TELL ME WHAT'S GOING ON!
SEE MY "1ST PROTOTYPE HEATER" FOR "WILLY", MY '46 WILLYS....ON NOVEMBER 6th IN THIS POST
https://www.2carpros.com/questions/1994-ford-ranger-alternator-quit-charging-tried-4-other-alternators-worked-came
SEE MY SHEET METAL VERSION...BACK-UP HEAT FOR "MR JEEP", MY '77 CJ 5
https://www.2carpros.com/questions/1998-jeep-wrangler-heater
THE MEDIC
Friday, October 12th, 2012 AT 2:45 AM