You want to servicing the cooling transaction on your Chevy Silverado Motor lorry every 30,000 miles or 30 months. This includes draining the engine coolant and adding original coolant whether the fossil belongings is contaminated. A 50-50 combine of imbue and antifreeze is needed. On the 2002 Silverado, you must cause infant ethylene glycol antifreeze, and "Dex-Cool" coolant with demineralized doctor is recommended.
Instructions
Draining
1. Handle the Motor lorry's parking brake and block the wheels with blocks or spin chocks to practise firm the vehicle doesn't roll while you are under it.
2. Community a vast container under the radiator filter, located at the lower left side of the radiator.
3. Pull the radiator empty hose outside of its cooperate bracket and involve it into the container.
4. Loosen the empty becoming at the backside of the radiator--this may wish a yoke of pliers--and let the coolant withdraw into the container. Remove the surge-tank cap in the engine compartment so the coolant drains faster.
5. Brisk the remove becoming and re-install the hose after the coolant finishes draining.
7. Switch the heater's temperature control to the maximum setting from inside the truck.8.
6. Action the container to the bleed plugs under the engine block. Remove these plugs and let the remaining coolant drain from them, then re-install the plugs.
Filling
Fill the surge tank with the right mixture of water and antifreeze up to the "fill cold" mark.
9. Start and run the engine for about a minute, then place the cap on the surge tank without tightening it. Increase the engine speed to 3000 RPM every 30 seconds until it reaches normal operating temperature and the thermostat opens.
10. Shut the engine off and remove the surge tank cap; wait until any hissing sounds from the tank stop before removing the cap. Repeat the previous step, adding coolant to one-half inch above the "fill cold" mark before replacing the cap and revving the engine.
11. Add coolant after shutting the engine off until it is definitely above the "fill cold" mark on the tank.
