RAM P0673 Error Code: How to Fix It

Q: What causes RAM P0673 error code?

P0673 is typically caused by a faulty glow plug, damaged wiring to the glow plug, a blown fuse, bad glow plug relay, or problems with the glow plug control module.

Q: Can I drive my RAM truck with P0673 code?

You can drive short distances, but expect hard starting especially in cold weather, rough idle, and increased emissions. It's best to fix this issue promptly to avoid engine damage.

Q: How much does it cost to fix P0673?

Costs range from $20-50 for a fuse/relay, $50-150 for a glow plug replacement, or $200-500 for professional diagnosis and repair including labor.

Q: Will P0673 cause my RAM to fail emissions testing?

Yes, P0673 can cause your vehicle to fail emissions testing as it affects combustion efficiency and increases emissions output.

Q: How long do glow plugs last in RAM diesel engines?

Glow plugs typically last 60,000-100,000 miles depending on driving conditions, maintenance, and fuel quality. Cold climate driving may reduce lifespan.

Abstract

RAM error code P0673 indicates a problem with the glow plug circuit for cylinder 3 in your diesel engine. This error means the glow plug isn't heating properly, which can cause hard starting, rough idling, and poor cold-weather performance.