Expert: Candido Figueroa - 7/22/2009

Question
i have 3 2008  chevy suburbans all three do the same  . the ac systems   will run for a while  then turn hot   the control panel  ac light will blink  .  i had the code checked  thay say its a 3287 air flo  problem  .  the sorce of the problem has never been found  . because after setting a while and cooling down  (after a long run) it seems to work again  .  i have one  now that  will work for a few minuts then the light will flash then go off  with no ac ,in all cases thay say the pressures are good   thay have  evacuated recharged replased the control panel with no sucess

Answer
HI James

Have not seen that yet.  These trucks are coming with a lot of electronics.  Check if this air flow problem is related to the condenser fan this can cause the compressor to disconnect.  The control panel will blink to let you know the computer is receiving a diagnostic code.