Car Information:
Chevy Tahoe
Year: 1998
Engine Size: 5.7
Trans: Automatic

Issue / Question:
I have a/c system with rear a/c. What is the correct amount of freon for this vehicle with rear a/c? I have been told 3 different amounts from the local GM dealers!

Answer:
Because there was different configurations for the location of the rear evaporators on this truck there is no set in stone recommendation,
I suggest charging up to 250 PSI on the high side at normal operating temps. I would expect it to hold around 3 lbs of refrigerant but you will need to look at the pressures.

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