RepairPal is your advocate for car care advice and guidance

Q: why does my air conditioner work really good sometimes? on 1991 Buick Park Avenue

while driving it will blow really cool air for about an hour and then it starts blowing hot
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
My 99 Park Avenue was doing this a few weeks ago. It was weird, because sometime it was just hot air, and sometimes it was cold air from the passenger side vents, and hot on the driver's side (at the same time). The culprit was low coolant.
check mechanical linkage under bottom panel ..far right side just up from floor
Didn't find what you were looking for?