whats the wheezing noise when i take off in 1st gear when the heater is on ? on 2007 Chevrolet Uplander

As it moves in to higher gear the noise stops. There is also gear slipping in first even after the trany oil has been changed.Thanks

by in Tacoma, WA on December 01, 2012
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2 answers
ANSWER by , December 01, 2012
possible transmission issue
ANSWER by , August 23, 2013
I agree get your