Question about 1994 Buick Roadmaster
No matter what position the electronic switch is in, the heat only comes from the vents on the dashboard. Could feel no air coming to the windshield whether the swith was on defrost or defog.
There is a vacuum line that's plastic on the passenger side back near the firewall. Sometime they have a little black ball looking thing (vacuum canister) that the vacuum line hooks to. Look for vacuum leaks in that area. That will cause the problem you described.
Posted on Jan 14, 2009
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Posted on Jan 02, 2017
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