Vacum Line,Temp Sensor ?????
C5RUN in Texas





This is the absolute best C5 Diagnostic Trouble Code (DTC) web site!!!
http://www.corvettedoctor.com/Code_Main.html
http://www.corvettedoctor.com/index.html
Go to “technical data base” and then to “Corvette ECM Computer Codes”. Then select your year car. Read the instructions and then scroll down to the "READ MORE" window to view the code definitions.\
Here is another very good site:
http://www.obd-codes.com/trouble_cod...d-ii-codes.php
Make sure to include the H or C suffix!!
Write down and post your DTC’s Then clear them ALL!
Sound effects are cool too!
It most likely NOT a vacuum problem as vacuum ONLY controls the vent door functions and NOT temperature!
It just as easy to check for DTC's. if you have any, write them dowm and post them.., Then CLEAR THEM! After you clear them, check for proper operation and see if the code comes back.
The temperatue is controlled by controller motors:
Passengers side motor is the small flat module:

Drivers side:

Observe the round openings in the passengers and drivers side while you try to adjust the drivers side temp from 60 deg to 90 deg. It should rotate just about 100 deg.
Rresetting the HVAC controller by disconnecting the battery or the HVAC fuses usually works.
BC





