Where is the rear ac blower on 1999 Chevrolet Express custom van?

The rear AC blower motor in a 1999 Chevrolet Express van isn't in one easily accessible location like a single unit. Instead, it's part of a larger assembly usually located underneath the rear passenger area floor, often near or behind the rear passenger seat.

To find it you'll need to:

* Remove the rear passenger side paneling: This will often require removing some trim pieces and potentially seats. The exact procedure varies depending on the specific trim level of your van. Consult a repair manual specific to your 1999 Chevrolet Express van for details on removing interior panels.

* Look for the HVAC ducting: Once the paneling is removed, you'll need to follow the air conditioning ducts leading toward the rear of the van. The blower motor will be located somewhere along this ductwork.

* It might be within a housing or enclosure: The blower motor itself will likely be enclosed in a housing.

Important Note: Accessing this area can be involved. Repair manuals specific to your year and model of Chevrolet Express van are crucial to avoid damage and to understand the correct disassembly/reassembly procedures. Using a manual will save you time, prevent damage, and ensure that you find the blower motor safely.