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What is your question?
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
1 Reply
You would need to start by checking pressures with a gauge. If you don't have a gauge you can rent on at the local auto parts store. If you are not too familiar with the ac system on cars you may want to bring this in for an inspection. Use this link to find a good shop near you. https://repairpal.com/repair-shops Alex