I changed a hose that went into the radiator because it cracked and the van was overheating. Then the radiator was leaking from the seams, so I changed that and burp cooling system many times. Changed the thermostat burp again a few times, still overheating. A mobile mechanic said it could be a defaulted thermastat, so I put a new one on. but it still is overheating , also the heater when idling blows out cool air in the the midlle closest to the driver side vents and very little on the passenger side.no air in the side vents. Also the hoses 1 is hot and the other stay cold even after the car is warmed up. When the fan comes on that area is not hot . To resevour is also cold. The thermastat does not open up.
What makes this problem better or worse?
Worse when the engine warms ip
How long has your 2007 Toyota Sienna had this problem?
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