carbon buildup
It’s when leftover fuel and smoke stick to parts of the exhaust, making them work less well.
Carbon buildup refers to the accumulation of soot and unburned fuel residue inside engine components like the catalytic converter, which can impair performance.
Hear It Discussed
"that those cars have of carbon build-up [3325.9s] because they need to be beat on for the EGR system [3328.1s] not to clog up."
This Unicorn Diesel Manual Slicktop Wagon Is One of Sacco’s Best — Carmudgeon Ep 240 w Jason Cammisa The Carmudgeon Show
"And what you have is carbon buildup on the valve train, which causes some of the valves to stick open and not close, thus rendering the engine compression-less."
#2598: The Not-So-Itsy-Bitsy Spider The Best of Car Talk
"but you want to get the [2026.2s] carbon buildup reduced and cleaned out from the backside of the valves because [2021.4s] that's going to disrupt airflow and cause all sorts of issues with your fuel"
Car Repair Advice Live Taking Your Calls from the Experts Under The Hood show
Cars Known For This
Episodes Mentioning "carbon buildup"
Ron Ananian, The Car Doctor - July 18, 2026 - Hour 1 - The Risk Is In The Repair
Ron Ananian The Car Doctor
Ron Ananian, The Car Doctor - July 4, 2026 - Hour 1 - Automotive Couples Counseling
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207. Building 1000HP Evos, Engine Programs, Pushing the B58 and GR Corolla Platforms w/ SpeedLab INC
Minnoxide
The Truth About Oil Additives
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#155 Building the Ultimate 90s Garage with a House to Match
Best In Class
Car Repair Advice Live Taking Your Calls from the Experts
Under The Hood show
This Unicorn Diesel Manual Slicktop Wagon Is One of Sacco’s Best — Carmudgeon Ep 240 w Jason Cammisa
The Carmudgeon Show
The Experts in DIY Car Repair and Car Care Trusted Advice
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The Forgotten Maintenance Item
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