A/C heating vent problem!

fongo · 09-18-2001, 09:16 AM

Hi everyone. I have the following problem. After turning on, no air comes out of the A/C-heating vents but does come out from the defroster vents by the windshield.
Could this be a A/C heating unit panel problem? or is there a solenoid or sensor behind the heating/AC control panels which switch on and off the vents?
I need to know so I can save myself a trip to my mechanic and save cash!

------------------
1993 GT, K&N filter, Accel dist.,Splitfire plugs, BBK: 1 5/8 unequal length shorties, hi flow H-pipe w/ cats; Flowmasters 2 chamber American Thunder catback system, Motorsports 3-core radiator, 180º thermostat...the rest is bone stock!

John · 09-18-2001, 08:37 PM

Pop your hood and look on the drivers side (just behind the upper intake) theres a block of vac. hoses. One says A/C and it runs across to passenger side. Mine was crimped so bad that it wouldnt open the doors for the various vents. Hope this helps. John

------------------
89 Notch: ASP Pullies,
K&N Air,Transgo shiftkit,Trans. cooler,FMS 3 core , FMS 4:10's, 1.5" cowl, cold air kit, hooker shorties(jet hot coated), O/R H-Pipe, ASP solid mounts, Energy Sus. Trans. Mnt. BBK 70mm TB, MSD 6al, Dual elec. fans, 5.0 Firepower Kit, Scorpion 1.6 RR's, Flowmasters, 73 mm MAF, cobra intake and crower #512 cam,

HiFlow5 0 · 09-18-2001, 09:04 PM

yup it sounds like a vac line problem. i forgot to hook that block of vac lines back up after changing the heater core and the same thing happened

------------------
89 GT AOD w/ shift kit, B&M rachet shifter, Trickflow intake, Crane (E-type) cam, 70Tb, 75MAF, 1.6 Rockers, Pulleys, MAC headers and H-pipe, Dynomax mufflers, K&N, 3 core radiator, white face gauges, custom interior, cobra R rims
89LX 2.3 Notch, daily beater!
MY89GT

Chipdog · 09-19-2001, 06:28 AM

I third that
My vac. problem was right at the tree. One of the fittings crumbled. Good luck

------------------
92 GT Convertible
Hooker Headers, H-Pipe, Flow Masters, 4.10s, BBK 1.5 drop, 73mm Mass air, 65 FMS TB, FMS Aluminum radiator, T-5 swap with a Steeda shifter.

And a Small Blow Job

fongo · 09-19-2001, 08:10 AM

Thanks everyone! I'll try that.
God Bless America!!!!!
fongo

------------------
1993 GT, K&N filter, Accel dist.,Splitfire plugs, BBK: 1 5/8 unequal length shorties, hi flow H-pipe w/ cats; Flowmasters 2 chamber American Thunder catback system, Motorsports 3-core radiator, 180º thermostat...the rest is bone stock!

09-18-2001, 09:16 AM	#1
fongo Registered Member Join Date: Jan 1999 Location: Farmingdale, NY Posts: 139	A/C heating vent problem! Hi everyone. I have the following problem. After turning on, no air comes out of the A/C-heating vents but does come out from the defroster vents by the windshield. Could this be a A/C heating unit panel problem? or is there a solenoid or sensor behind the heating/AC control panels which switch on and off the vents? I need to know so I can save myself a trip to my mechanic and save cash! ------------------ 1993 GT, K&N filter, Accel dist.,Splitfire plugs, BBK: 1 5/8 unequal length shorties, hi flow H-pipe w/ cats; Flowmasters 2 chamber American Thunder catback system, Motorsports 3-core radiator, 180º thermostat...the rest is bone stock!

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09-18-2001, 08:37 PM	#2
John Registered Member Join Date: Dec 1998 Location: Ft.Myers, FL. Posts: 150	Pop your hood and look on the drivers side (just behind the upper intake) theres a block of vac. hoses. One says A/C and it runs across to passenger side. Mine was crimped so bad that it wouldnt open the doors for the various vents. Hope this helps. John ------------------ 89 Notch: ASP Pullies, K&N Air,Transgo shiftkit,Trans. cooler,FMS 3 core , FMS 4:10's, 1.5" cowl, cold air kit, hooker shorties(jet hot coated), O/R H-Pipe, ASP solid mounts, Energy Sus. Trans. Mnt. BBK 70mm TB, MSD 6al, Dual elec. fans, 5.0 Firepower Kit, Scorpion 1.6 RR's, Flowmasters, 73 mm MAF, cobra intake and crower #512 cam,

09-18-2001, 09:04 PM	#3
HiFlow5 0 Registered Member Join Date: Mar 2000 Location: Springfield, Ma, usa Posts: 706	yup it sounds like a vac line problem. i forgot to hook that block of vac lines back up after changing the heater core and the same thing happened ------------------ 89 GT AOD w/ shift kit, B&M rachet shifter, Trickflow intake, Crane (E-type) cam, 70Tb, 75MAF, 1.6 Rockers, Pulleys, MAC headers and H-pipe, Dynomax mufflers, K&N, 3 core radiator, white face gauges, custom interior, cobra R rims 89LX 2.3 Notch, daily beater! MY89GT

09-19-2001, 06:28 AM	#4
Chipdog Registered Member Join Date: Apr 1999 Location: Miami,Fl USA Posts: 297	I third that My vac. problem was right at the tree. One of the fittings crumbled. Good luck ------------------ 92 GT Convertible Hooker Headers, H-Pipe, Flow Masters, 4.10s, BBK 1.5 drop, 73mm Mass air, 65 FMS TB, FMS Aluminum radiator, T-5 swap with a Steeda shifter. And a Small Blow Job

09-19-2001, 08:10 AM	#5
fongo Registered Member Join Date: Jan 1999 Location: Farmingdale, NY Posts: 139	Thanks everyone! I'll try that. God Bless America!!!!! fongo ------------------ 1993 GT, K&N filter, Accel dist.,Splitfire plugs, BBK: 1 5/8 unequal length shorties, hi flow H-pipe w/ cats; Flowmasters 2 chamber American Thunder catback system, Motorsports 3-core radiator, 180º thermostat...the rest is bone stock!