How to Change the Timing Chain on a 1999 Chevy Tahoe

Removing the timing chain on your 1999 Chevrolet Tahoe is a fairly involved and arduous process that involves the removal of the timing cover in order to access the chain. The chain manages the vehicle's valve gears at the precise moment occurring in the stroke cycle. If the timing chain is damaged, you will have a difficult time operating your vehicle. You should expect to spend well over an hour changing the timing chain on your 1999 Chevy Tahoe.

Place a drain pan underneath the Tahoe and loosen the drain plug with a socket wrench to drain the cooling system. Open the hood.

Remove the crankshaft pulley and damper by pulling them out of the Tahoe.

Unfasten the bolts securing the timing case cover to the block with a socket wrench. Remove the cover and gaskets.

Pry off the old seal from the timing chain cover with a flat-head screwdriver. Remove the timing chain cover.

Crank the engine until the timing-marks on both of the sprockets are closest to each other and in the middle of the shaft centers. Uninstall the bolts, securing the timing chain to the engine. Lift it out of the engine compartment and install a new timing chain. Reattach the bolts and the timing chain cover.

Reattach the damper and crankshaft pulley. Tighten the drain plug and lift off the radiator cover cap. Pour the coolant from the drain pan into the radiator. Reattach the cap and close the hood.