hvac control panel won't respond to changes.

Asked by Feb 22, 2014 at 01:22 PM about the 1997 Jeep Wrangler Sport

Question type: Maintenance & Repair

can't get any change,always on defrost.

1 Answer

64,985

Sounds like the vacuum hose going from the intake manifold to the climate control panel is disconnected. When the system loses vacuum it defaults to defrost for safety reasons. HTH. -Jim

Your Answer

Add photo

Related Questions

  • heate blowing cool air 1 answer

    I replaced my heater core and think I got the blend air door stuck.I have the dash and all back together, before I go all the way back in to the heater/ac housing I was wondering if cutting the AC lin...

    1999 Jeep Wrangler Sport

    -

    Maintenance & Repair

  • Jeep Wrangler TJ 2001 -cranks but won't start 6 answers

    This has gone on for months. The Jeep just died one day and starts when it wants to. Usually cranks but won't start. Changing computer didn't help. Gas gauge doesn't work but will work if the vehic...

    2001 Jeep Wrangler SE

    -

    Maintenance & Repair

  • Cranks with spark and fuel but won't start? 2 answers

    I gavec1990 jeep wrangler with 2.5 . While driving it sputtered backfired and quit running. Have checked for spark changed coul. Checked for fuel getting fuel. Checked timing by aligning tdc and l...

    1990 Jeep Wrangler STD

    -

    Maintenance & Repair

  • 99 jeep Tj. Blower motor is not working. 3 answers

    Bench tested the motor; works. Changed the resisto; still not working. Checked the switch; functions properly. Checked the relay; works fine. I am stumped now. The fuse has power when the switch is ...

    1999 Jeep Wrangler

    -

    Maintenance & Repair

  • My 2001 Jeep Grand Cherokee LTD, climate control fan works, heat works, but won't change modes, to floor, defrost, vent, etc 3 answers

    Climate control won't change modes, from floor heat, to vent, to A/C. Heat & A/C work, can hear fan go on from low through high, but nothing blows out the floor, vent, defrost vents. Any idea's what...

    2001 Jeep Grand Cherokee Limited 4WD

    -

    Maintenance & Repair

Search Jeep Wrangler Questions

Jeep Wrangler Experts

#1 Tom Demyan
Tom Demyan
Reputation 370
#2 tennisshoes
tennisshoes
Reputation 360
#3 Mathew Wooldridge
Mathew Wooldridge
Reputation 330
View All

Related Models For Sale

Used Jeep Grand Cherokee
1,005 Great Deals out of 73,106 listings starting at $950
Used Jeep Cherokee
428 Great Deals out of 60,087 listings starting at $2,500
Used Ford Mustang
361 Great Deals out of 46,839 listings starting at $1,999
Used Ford F-150
2,208 Great Deals out of 208,724 listings starting at $1,499
Used Toyota Tacoma
500 Great Deals out of 38,896 listings starting at $2,900
Used Chevrolet Camaro
154 Great Deals out of 32,676 listings starting at $1,995
Used Toyota 4Runner
253 Great Deals out of 20,378 listings starting at $1,995
Used BMW 3 Series
969 Great Deals out of 33,360 listings starting at $1,000

Used Cars For Sale

2017 Jeep Wrangler Sport For Sale
4,101 listings starting at $24,500
2016 Jeep Wrangler Sport For Sale
6 Great Deals out of 767 listings starting at $22,989
2015 Jeep Wrangler Sport For Sale
15 Great Deals out of 577 listings starting at $20,877
2014 Jeep Wrangler Sport For Sale
13 Great Deals out of 613 listings starting at $18,991
2013 Jeep Wrangler Sport For Sale
16 Great Deals out of 542 listings starting at $16,900