how do i get the interior air box out?

h4life · Post by **h4life** » Wed Apr 15, 2009 9:58 pm

i am in the process of removing the entire wiring harness for a wrx swap. the wires go behind the box that decides where the air goes. i have been fighting with thing and cant seem to get it out. HELP! all bolts and screws that i can see are out. what am i missing?

PhyrraM · Post by **PhyrraM** » Wed Apr 15, 2009 11:47 pm

Take out the three bolts that hold the heater box, two bolts that hold the A/C evaporator, and the clamp that holds the A/c box to the fan box.

Better shot of the bottom bolts.

Pull the A/C evaporator box out a bit to give the main box room to slide around. There is enough give in the lines, so no worries if the system is charged.

You shouldnow be able to get the HVAC bos out and access the harness.

BSOD2600 · Post by **BSOD2600** » Thu Apr 16, 2009 2:40 am

Interesting you were able to get the airbox out w/o discharging the AC system. On my 94 TW, during my heatercore replacement (PITA!), there just wasn't enough slack in the AC lines for me to wiggle the thing out of the way. Had to discharge the system and remove the AC evaporator.

skid542 · Post by **skid542** » Thu Apr 16, 2009 3:14 am

^^^ Seconded on all accounts, i.e. I had the same experience.

PhyrraM · Post by **PhyrraM** » Thu Apr 16, 2009 3:23 am

I remember it taking a bit of wiggling and pushing, but I did not disconnect the A/C.

'93 sedan, if it matters. But I can't see how it would. Turbos do have a slightly different A/C line coming out of the firewall, but I think we all have turbos. I might have taken a few of the clamps off on the engine compartment side to allow more movement.

h4life · Post by **h4life** » Thu Apr 16, 2009 3:43 am

i have all the bolts out pictured. what are the two holes behind where the box was? i have the box to the right lose but with the lines still hooked up. are there lines or bolts that go through the fire wall? got fed out and had to go to class so i didnt have much time to investigate. thanx again guys. the pics alone help alot.

PhyrraM · Post by **PhyrraM** » Thu Apr 16, 2009 3:55 am

Those two holes are where the heater hoses exit out to the engine compartment. I didn't specifically mention those, but they need to be disconnected from the firewall under the hood.

h4life · Post by **h4life** » Thu Apr 16, 2009 4:42 am

sweet thanx. ill do it tomorrow

Post by **Legacy777** » Thu Apr 16, 2009 6:11 pm

Damn work blocking pictures.

I'm impressed you were able to get the boxes out without discharging the AC.

h4life · Post by **h4life** » Fri Apr 17, 2009 3:09 am

I had no prob with the ac. i was a dumb ass and didn't realize the the heater was in that box. so i didnt know to unhook the coolent lines. as long as you take off the bolts that hold the ac box and dont forget to un hook the channels that go to the backseat foot heaters

h4life · Post by **h4life** » Fri Apr 17, 2009 3:11 am

oh wait you wrote boxes. i just took out the heater so i could get at the harness behind it.

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how do i get the interior air box out?

how do i get the interior air box out?