Check the following......................
1. A/C heater control doors.
2. Check for vacuum leaks.
3. Check for broken a/c heater doors.
4. Check main controller head.
YES. Almost everything will interchange.
YES they are the same.
YES they are the same.
$14,000
1988 to 1991 most parts are interchangeable - body styles an other things changed after 1991
replace heater core in a 1991 Chevy work truck 1500
How to remove and install the serpentine belt on 1991 Chevy Blazer with AC?
That will be a 700R4 transmission.
YES, They are the same.
how to replace the rear seals on a 1991 Chevy S-10 pick-up truck
I have a 1991 Chevy surburan and it has no tail lights and no dash lights, all fuses are good
Green coolant