GMC Savana 1500 Questions

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The valve underneath the van 2003 gmc savana van has been changed because it was blowing hot air when ac was on but still blowing hot air what could that be
Van just stop running.speedom, and fuel gade not working wright.checked all wiring grounds all good. Installed new alt and batt, could problem be in pcm?
the rear heater core is leaking anti-freeze on the left side in the rear of the van
I know this is an old thread, but need the name of the part as it suffered road damage and is spewing coolant. Car is undrivable. Black rectangular box that is part of the rear ac system. Contacted 20 to 25 parts yards w/o success because I don't know the name of the part. Help!
How long have you had this problem? 3 days
Everything seems to work fine at the front unit, except the blower air in rear .does not get cool in the summer & warm in the winter.
What seems to make the problem better or worse? Hot or cold outside temps.
How long have you had this problem? About a year
The button are not moving either
I have a picture of what I'm looking for however it is the plastic box that the blower motor is attached to as well as the 2 tubes that supply the roof vents with heat or a.c..
Just got car and seat did not work
Is it possible to throw off the timing when replacing radiator or intake manifold gasket or starter distributor
The power locks on the van does not work, not even with the remote control. I checked the fuse box inside and found no bad fuses. What could be the problem for the power locks not to work?
All those issues only work with my headlights are turned on then I have power to all them systems if I don't have my headlights on I have no power to my radio my power seats my power locks my brake lights don't work all unless my headlights are on
sometimes cuts off when backing up, slight smell coming from exhaust.
I want to be able to seat another person in the van
if actuator is suspect ...where is it
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