1990 Cadillac Seville 4.5L Excessive Hi-Side Pressure

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Posted to GM HVAC on 5/17/2001 14 Replies

HI Cadillac techs

The message a/c overheating was coming on when the customer was driving intown. Owner noticed poor cooling, this has been going on for 2 weeks. On the way to my shop, 20 mile trip, he got 2 miles from the shop & the message coolant tempature...

14 Replies Received (View Replies)

Vehicle Data

1990 Cadillac Seville

VIN	1G6KY5335L
Engine	4.5 L / 8 cyl / GAS
Trans	4-speed Automatic
Delivery	FI
Affected	Excessive Hi-Side Pressure
Conditions	Poor Cooling and Code B449
Misc.	Still Using R-12 in This System

Message Closed w/FIX

Vehicle Data

1990 Cadillac Seville

VIN	1G6KY5335L
Engine	4.5 L / 8 cyl / GAS
Trans	4-speed Automatic
Delivery	FI
Affected	Excessive Hi-Side Pressure
Conditions	Poor Cooling and Code B449
Misc.	Still Using R-12 in This System

14 Replies Received (View Replies)

14 Replies Received (Hide Replies)

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Vehicle Data

1990 Cadillac Seville

Vehicle Data

1990 Cadillac Seville