RAM Truck Error Code P0671: How to Fix It

Q: Can I drive my RAM truck with a P0671 code?

Yes, you can typically drive with this code, but you may experience hard starting in cold weather. The truck will start more easily in warm conditions, but it's best to fix the issue promptly to avoid potential starting problems.

Q: How much does it cost to fix a P0671 code?

If it's just a faulty glow plug, expect to pay $20-50 for the part plus labor costs. If the glow plug control module has failed, parts can cost $200-400. Total repair costs typically range from $150-600 depending on the root cause.

Q: What causes glow plugs to fail in RAM diesel trucks?

Common causes include normal wear from heat cycling, carbon buildup, electrical system issues, or using incorrect glow plugs. High mileage, poor maintenance, and extreme temperature conditions can accelerate glow plug failure.

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

Glow plugs typically last 60,000-100,000 miles in RAM diesel trucks, though this can vary based on driving conditions, maintenance, and climate. Cold weather operation tends to reduce glow plug lifespan.

Q: Will a bad glow plug cause other engine codes?

A single bad glow plug usually only triggers its specific cylinder code (P0671 for cylinder 1). However, if multiple glow plugs fail or there's a control module issue, you may see additional codes like P0672-P0678 for other cylinders or P0380 for the glow plug control circuit.

Abstract

The P0671 error code in your RAM diesel truck indicates a problem with the glow plug circuit for cylinder 1. This means either the glow plug itself has failed, there's a wiring issue, or the glow plug control module isn't functioning properly. While this won't prevent your truck from starting in warm weather, it can cause hard starts in cold conditions and should be addressed promptly.