Discussion:
#3 cylinder missfire

Our GLC 070vx starts and runs fine until it gets hot. When hot #3 cylinder cuts out. Has new coil, plug wires, and spark plugs. I do not think it is an injector as I have introduced carb and choke cleaner to just that cylinder and the miss does not go away. Am I looking at a lifter bleeding off? Any ideas?
  • Posted 14 Feb 2024 06:07
  • By Jon_Nemke
  • joined 14 Feb'24 - 5 messages
  • Wisconsin, United States
Showing items 1 - 4 of 4 results.
I am starting to think along the lines of valve issues. I would think if the intake valve was sticking open you would get a backfire? I am going to pull the head as I have a new one on the shelf and I will replace the lifters. I am not getting any lifter noise but anything is possible.
  • Posted 14 Feb 2024 23:12
  • By Jon_Nemke
  • joined 14 Feb'24 - 5 messages
  • Wisconsin, United States
It does not have a cap and rotor.
  • Posted 14 Feb 2024 23:10
  • By Jon_Nemke
  • joined 14 Feb'24 - 5 messages
  • Wisconsin, United States
No new cap and rotor? Stupid question, is the cap aftermarket? Had problems with that in the past. Just finished a repair #5 lifter fail, but my engine also had top end noise.
  • Posted 14 Feb 2024 19:46
  • By Lucky11_H
  • joined 14 Feb'24 - 4 messages
  • Kentucky, United States
Lucky66h
Sticking inlet valve possibly?
  • Posted 14 Feb 2024 19:40
  • By andrew_k
  • joined 17 Mar'07 - 325 messages
  • England, United Kingdom

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The origin of "love" as the score zero in tennis is debated, but two main theories prevail. One suggests it's derived from the French word "l'oeuf" (egg) which resembles the shape of the number zero. The other proposes it's related to the Dutch word "lof" meaning "honour" as players might be playing for honour when scoreless.