2021 Chevrolet Silverado 1500 — rough idle disappears just above idle speed
2021 Chevrolet Silverado 1500 LTZ 6.2, about 65,000 miles. Idle has a slight shake once fully warm, but 100–200 RPM above idle it smooths out. No major loss of…
Repairs & Ownership
2021 Chevrolet Silverado 1500 LTZ 6.2, about 65,000 miles. Idle has a slight shake once fully warm, but 100–200 RPM above idle it smooths out. No major loss of…
2018 Chevrolet Tahoe LT, about 132,500 miles. A cylinder-specific misfire code appeared after one rough start, then cleared and the engine feels normal. Plugs…
2012 Honda Pilot EX-L, about 114,000 miles. There is a light ticking sound that follows engine speed for the first few minutes and then becomes hard to hear. O…
2024 Acura MDX Type S, about 14,500 miles. Scanner showed a cylinder-specific misfire code after one rough start, but the car feels completely normal now. Plug…
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Idle has a slight shake once fully warm, but 100–200 RPM above idle it smooths out. No major loss of power.
The car starts normally most of the time, but after filling the tank it occasionally cranks longer and runs rough for a few seconds. Could EVAP/purge behavior…
Long-term fuel trims are much more positive at idle than at 2,500 RPM. No obvious misfire.
The car starts normally most of the time, but after filling the tank it occasionally cranks longer and runs rough for a few seconds. Could EVAP/purge behavior…
2024 Buick Envision Avenir, about 78,000 miles. There is a damp area around the lower side of the engine but nothing reaches the ground overnight. I cleaned it…
2021 Honda CR-V EX-L, about 50,000 miles. The car starts normally most of the time, but after filling the tank it occasionally cranks longer and runs rough for…
I've started checking the dipstick every 500 miles and the level is definitely moving down between oil changes. No obvious puddles and I don't see smoke. At wh…
2007 Porsche Cayman S, about 48,000 miles. Looking at an older Cayman S with good records. I keep seeing buyers emphasize borescope/PPI work on this generation…
There is a light ticking sound that follows engine speed for the first few minutes and then becomes hard to hear. Oil level is correct. How would you separate…
2020 GMC Yukon Denali, about 102,500 miles. Idle has a slight shake once fully warm, but 100–200 RPM above idle it smooths out.
Scanner showed a cylinder-specific misfire code after one rough start, but the car feels completely normal now. Plugs aren't that old. Would you swap coils to…
Looking at an older Cayman S with good records. I keep seeing buyers emphasize borescope/PPI work on this generation. For someone vetting listings, what would…