MONTE CARLO hmon4021 Vietnam vet. 67-68

[hmon4021]

1978 Monte Carlo, bought new, Tucson Az. Max AC blowing volume does not increase. Volume sound increases in heater box. Probable vacuum line leak if I knew where to look?
Unable to find information on which line activates the max AC?

 

[pagrunt]

Here's the vacuum diagram for our cars. Just follow what's listed for G's. All of these lines are behind the dash with a clear vinyl like vacuum line connector that you'll be able to see under the glove box door. Check here first for any breaks or if not fully connected.

 

[hmon4021]

1978 Monte Carlo, bought new, Tucson Az. Max AC blowing volume does not increase. Volume sound increases in heater box. Probable vacuum line leak if I knew where to look?
Unable to find information on which line activates the max AC?

This is great information. Thanks! Now the work begins.