1993 GMC Suburban Owner's Manual - Page 294
1993 GMC Suburban Manual
Page 294 highlights
When you replaceyourradiatorpressurecap, an AC@ cap is recommended. Thermostat Engine coolant temperature is controlled by athermostat in theenginecoolant system. The thermostat stops the flow of coolantthroughtheradiator until the coolant reaches apresettemperature. Whenyoureplace your thermostat,an AC@ thermostat is recommended. 6-28
We apologize, but we cannot currently deliver this PDF manual by request of the manufacturer.
We apologize for any inconveniece.