Hi, I just have a question about Mtc hvac callibration. Heater weak air.
When I did it pressed rear wiper and circulation and no errors appears, my question is will this test find out about damaged blend doors.
The other thing, when my coolant 50/50 is full with the bottle it only goes to 1/8 below middle line, I mean 4th line from bottom on the gauge even in summer. Thanks
Thanks. Its 2004 3.3 caravan.

 

Makes no sense.

 

I figure out the radiator cap was old, it did really help, now Im thinking, ye guess thats what it is.