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One thing to check is whether the recirculation servo arm is intact. I was chasing warmer than desired AC temps in my 2002 Aero, the difference in temp between the evaporator and the air coming out of the vents was 15 degree (so evap at 40 and vents at 55). In spite of it being in recirc mode, because the plastic arm was broken, it was never going into actual recirculate. There are generally no codes for this failure, either in the tech2 or doing the self-diagnostic. Since you have a 1999 the tech2 will give you the actual evaporator temp, unlike post 2002 cars.
Posts in this Thread:
- Dang it's been hot! Help interpreting tech 2 for my AC, bobc
, Wed, 16 Aug 2023 13:57:21- Another thought..., DnstrDan
, Sat, 2 Sep 2023 17:35:55 - Re: Dang it's been hot! Help interpreting tech 2 for my AC, Joe
, Mon, 21 Aug 2023 18:28:58 <-- Viewing This Message - Re: Dang it's been hot! Help interpreting tech 2 for my AC, Bernie
, Thu, 17 Aug 2023 16:06:36 - Re: Dang it's been hot! Help interpreting tech 2 for my AC, pme
, Wed, 16 Aug 2023 18:18:34
1- agreed, bobc
, Fri, 18 Aug 2023 14:23:24
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