Having problems with your 1999 GMC Safari ?

1999 gmc safari van upper vent

\015 I cannot get air to come out of the top vents on air conditioning or heating. Air comes out of defroster and bottom vents but not from the top. Can anyone help me? thalnks\015 Posted / edited by AnonymousUser on : 22-10-2018

Answers :

Check under the hood for deteriorated small vacuum hose coming off the intake over to the heater box area.
\015\012Repair the vacuum hose.
Repair Help & Product Troubleshooting for 1999 GMC Safari

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