The average cost for a Glow Plug Replacement is between $91 and $133. Labor costs are estimated between $70 and $89 while parts are priced between $21 and $44. Get a personalized estimate based on your location and specific car. Estimate does not include taxes and fees.
Glow Plug Replacement Cost for GMC Sierra 3500
Glow Plug Replacement Estimate (National Average)
For best results and to avoid future problems, replace the glow plugs as a complete set. Be sure to verify that the glow plug relay is operating properly.
When the engine is cold, it will be hard, if not impossible, to start. However, the engine will start normally when it is warmed up.
If the glow plug relay, injector pump timing, and engine compression are not properly checked, then replacing the glow plugs may not address the original problem.