Cooling - Low Coolant Light On During Sustained Driving
File In Section: 8 - Chassis/Body ElectricalBulletin No.: 73-83-09
Date: May, 1997
Subject:
Low Engine Coolant Light On During Sustained Driving at Moderate to High Engine RPM (Replace Cooling System Surge Tank)
Models:
1997 Chevrolet Cavalier
1997 Pontiac Sunfire
Built from SOP through December 31, 1996
Condition
Some owners may comment that the low engine coolant light will illuminate during sustained driving at moderate to high engine RPM.
Cause
The design of the baffles in the cooling system surge tank coupled with the engine coolant air bleed pipe allow high coolant flow. This may allow the coolant sensor cavity in the surge tank to have an inadequate supply of coolant during sustained driving at moderate to high engine RPM. This may cause the low coolant light to illuminate even if the system is properly filled.
Correction
Verify that the system is properly filled and free of leaks. If the condition is still present, replace the cooling system surge tank with the revised design (see below for P/N's). Refer to the 1997 Service Manual.
Parts Information
Old P/N New P/N Description
22600776 22605500 For Chevrolet Cavalier
and Pontiac Sunfire
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation Description Labor Time
J3250 Tank, Radiator Use published
Coolant Surge - labor operation
R&R or Replace time