GM Service Manual Online
For 1990-2009 cars only

Problem

Action

Faulty engine temperature gauge

Replace the engine temperature gauge.

Faulty engine temperature gauge sensor

Replace the engine temperature gauge sensor.

Brakes dragging

Adjust the brakes as needed.

Frozen engine coolant

Allow the coolant to thaw.

Improper belt tension

Adjust the belt tension.

Restricted radiator

Repair the restriction as needed.

Incorrect cooling fan

Install the correct fan. Refer to Fan in this section.

Restricted exhaust

Repair the restriction as necessary.

Incorrect thermostat(s)

Install the correct thermostat(s).

Faulty water pump

Replace the water pump.

Incorrect ignition timing

Adjust the ignition timing.

Low engine oil level

Install engine oil to the proper level.

Blocked radiator grille

Repair the radiator grille as needed.

Missing radiator shroud or baffles

Install the correct radiator shroud or baffles.

Faulty thermostatic fan

Replace the thermostatic fan clutch.

Faulty cooling fan

Replace the fan.

Faulty engine thermostat(s)

Replace the thermostat(s).

Plugged cooling system

    • Repair the system as needed.
    • Drain the system.
    • Flush the system.