What is the push rod order for 1998 Chevy lumina?

There's no single "pushrod order" for a 1998 Chevy Lumina engine. The firing order determines the sequence of power strokes, but the pushrods themselves don't have a specific order *other than* matching the valve they operate. The pushrods are simple components that transfer motion from the camshaft to the rocker arms.

To understand the relationship:

1. Firing Order: The 1998 Lumina likely uses either a 3.1L V6 or a 3.4L V6 engine. Each has a specific firing order (the sequence the cylinders fire). You'll need to find the firing order for *your specific engine* in your owner's manual or a reliable online repair manual. This is crucial for proper engine operation.

2. Pushrod Installation: Each pushrod connects a specific camshaft lobe to a specific rocker arm for a specific valve (intake or exhaust) on a specific cylinder. They are not interchangeable between cylinders or valves. If you're replacing pushrods, they must go back in the same location they came from. A poorly installed pushrod will damage your engine.

In short: If you are working on your Lumina's engine and need to replace pushrods, carefully note their positions before removal or consult a detailed repair manual with diagrams for your specific engine (3.1L or 3.4L). There's no general "order" like you might find in a camshaft installation, as each pushrod is uniquely assigned to a specific valve.