OK thanks. Does anyone have pictures or diagrams of were this is located?
OK thanks. Does anyone have pictures or diagrams of were this is located?
mine did the same after my batterey died i unpluged the negative side of the batt and reset the system and it worked fine after that try that
There are exactly ZERO vacuum actuators on a GMT800. 2003+ are usually a failed temp actuator motor but the 2004+ GMT800's have a software update for the HVAC to "help". The friendly dealer can do the update. If you're a DIY'er, hope for the LH actuator to fail. Most DIY'ers could do that side. The RH side....? Maybe not. Once and a while the LH side will get much warmer than the RH side when the system is low. Have the dealer check that too.
mine does it too. they told me its the blend door, they said it is right underneith your ac controls under your dash hidden in a little box.
05 RCSB SILVY 5.3
PS LONG TUBES W/ORY
2/4 DROP ON 20'' GMC STOCKS
NELSON PCM
K&N INTAKE
DETROIT TRU-TRAC W/ 4.10'S
NEW TIMES 14.51 W/ 2.183 60FT
Both are "behind the radio" yet the LH side actuator is on the bottom of the case and is easily accessed with the bolster panel removed. The RH side actuator is left to right in the same place but on top of the case, yet still under the dash.
Has anyone changed the RH actuator? If it is behind the radio, what all is involved in replacing it?
You're supposed to pull the dash but I squeak it out through the passenger air bag hole with the bag removed.
when i worked at a chevy dealer i used to watch some of the line techs have to reprogram and reset the actuators via a tech 2, that is why when you unplug the battery and reattach it resets itself too. try that and see if that does not fix your problem
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