The charge is probably low. You can get a 134a recharge kit for less 20 bucks at Walmart. It charges through the low port side of the system. It is esy. Just charge it until it is in the green area. Good luck.
you would need to add freon
A 2002 Jeep Grand Cherokee uses a group 65 battery with 750 cold cranking amps.
air conditorner doesnt blow cold air has freeon compressor doesnt kick on
i got my 2000 jeep grand cherokee to go 110 ish but it has a spector cold air intake and a thurst muffler and oil change
625 @ zero Fahrenheit
900-1200
Bad thermostat
bad fuel filter
Coolant level is probably low, Have it checked for an antifreeze leak.
There are a couple of reasons why a 1999 Jeep Grand Cherokee may stall in any weather condition. One reason could be the ECU computer could be going bad.
Check level of transmission fluid Change transmission fluid and filter
A Jeep Grand Cherokee that starts and dies might have a problem with the choke. Depending on how new the vehicle is, there might be a sensor for the choke that is not working properly.