The HeaterTreater is an after market kit that solves heater and AC for the Jeep Grand Cherokee and Laredo. It is much cheaper than the dealership fix and is easy to install. For diagnosis and info, check out www.heatertreater.net or search eBay for "heatertreater".
Yes, the bcm controls the theft alarm.
The thermostat on a 4.7L is under the housing where the lower radiator hose attaches to the engine.
20 gallons
There are many places where one could purchase a Jeep Grand Cherokee limited edition car. One could try online shops such as Amazon or eBay for deals on this brand of vehicle.
In the oil pan
It is under the housing that the upper radiator hose hooks to on the engine.
Where the big radiator hose connects to the front of the block.
Follow upper radiator hose to the engine, it is under that housing.
pull it out of the box to bypass the centrifuge
Try your Dodge/Jeep dealer first
The thermostat is quite easy to locate. It is at the top of the engine at the front. You will see a radiator hose attached to the engine at this location. The thermostat is in the housing it attaches to.
Stay at the factory temp.