Troubleshooting Hints

NOTE: Try the following checks before doing the System Diagnosis.

1. Check for Manifold Vacuum to the Vacuum Tank at the BLACK hose from the engine and at the VIOLET hose to the A/C Control Head.

2. Check the operation of the Temperature Door by setting the Temperature Selector first to COLD then to HOT and back again. The Temperature Door should move evenly through its full travel each time the temperature setting is changed. If the door moves unevenly or erratically, check that the door is not binding at some point.

^ Go to A/C System Check for a guide to normal A/C operation. Testing and Inspection