# Suburban Dual Air **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** chevrolet, suburban\ **Created:** [January 2, 2010, 8:53pm UTC](https://community.cartalk.com/t/suburban-dual-air/41712 "2010-01-02T20:53:37Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![emenees](https://avatars.discourse-cdn.com/v4/letter/e/a4c791/32.png) [@emenees](https://community.cartalk.com/u/emenees)\ **Post date:** [January 2, 2010, 8:53pm UTC](https://community.cartalk.com/t/suburban-dual-air/41712/1 "2010-01-02T20:53:37Z")
Does a Suburban with duel air have more than one accumulator and orifice tube? ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [January 2, 2010, 9:05pm UTC](https://community.cartalk.com/t/suburban-dual-air/41712/2 "2010-01-02T21:05:57Z")
It only has one accumulator, but two orifice tubes. One for each evaporator. Tester ---
**Author:** ![emenees](https://avatars.discourse-cdn.com/v4/letter/e/a4c791/32.png) [@emenees](https://community.cartalk.com/u/emenees)\ **Post date:** [January 2, 2010, 9:10pm UTC](https://community.cartalk.com/t/suburban-dual-air/41712/3 "2010-01-02T21:10:53Z")
Where are the two orifice tubes. ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [January 2, 2010, 9:14pm UTC](https://community.cartalk.com/t/suburban-dual-air/41712/4 "2010-01-02T21:14:37Z")
There in the high side refrigerant lines connected to the evaporators. Tester ---
**Author:** ![emenees](https://avatars.discourse-cdn.com/v4/letter/e/a4c791/32.png) [@emenees](https://community.cartalk.com/u/emenees)\ **Post date:** [January 3, 2010, 12:06am UTC](https://community.cartalk.com/t/suburban-dual-air/41712/5 "2010-01-03T00:06:27Z")
Thanks Tester, Is the orifice tube for the rear evaporator under the hood or in the rear next to the evaporator? ---
**Author:** ![oldschool](https://avatars.discourse-cdn.com/v4/letter/o/e19adc/32.png) [@oldschool](https://community.cartalk.com/u/oldschool)\ **Post date:** [January 3, 2010, 1:14am UTC](https://community.cartalk.com/t/suburban-dual-air/41712/6 "2010-01-03T01:14:08Z")
You guys have this one wrong. The front AC runs off an orfice tube but the rear runs off an expansion valve.And the expansion valve is right below the rear evaporator. ---
**Author:** ![emenees](https://avatars.discourse-cdn.com/v4/letter/e/a4c791/32.png) [@emenees](https://community.cartalk.com/u/emenees)\ **Post date:** [January 3, 2010, 1:13pm UTC](https://community.cartalk.com/t/suburban-dual-air/41712/7 "2010-01-03T13:13:45Z")
My book says you have to remove the battery, battery tray, air filter housing, right front tire, and right front inner fender well to get to the orifice tube. Is this correct? ---
**Author:** ![oldschool](https://avatars.discourse-cdn.com/v4/letter/o/e19adc/32.png) [@oldschool](https://community.cartalk.com/u/oldschool)\ **Post date:** [January 3, 2010, 5:03pm UTC](https://community.cartalk.com/t/suburban-dual-air/41712/8 "2010-01-03T17:03:11Z")
Your not helping out by not giving the year,you did not have to do all that on 2001 and earlier,what’s your year model? When you write to CarTalk we need to know the same information (if not more) than if you were at the parts counter. ---
**Author:** ![emenees](https://avatars.discourse-cdn.com/v4/letter/e/a4c791/32.png) [@emenees](https://community.cartalk.com/u/emenees)\ **Post date:** [January 3, 2010, 6:56pm UTC](https://community.cartalk.com/t/suburban-dual-air/41712/9 "2010-01-03T18:56:53Z")
1998 C1500 2WD Suburban 3GNEC16RXWG105570