G37 runs hot at idle but cools once moving
2013 Infiniti G37 xS, about 37,000 miles. Temperature creeps up sitting still and drops once road speed gives it airflow. Fans appear to run, but I haven't che…
Engine
Repairs & Ownership
2023 Ford Bronco — oil level drops between services with no puddle
2023 Ford Bronco Badlands, about 29,500 miles. I started measuring the oil level every few hundred miles and it is definitely falling between changes. There is…
ColdStartWeekend566Community StarterMay 12, 20262023 Ford Bronco BadlandsLos Angeles2 replies0 helpful
1998 Lexus LS — long crank only after filling the fuel tank
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…
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2013 Infiniti G37 — ticking noise follows RPM but fades when warm
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…
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2013 Infiniti G37 xS — small oil leak or just old residue?
There is a damp area around the lower side of the engine but nothing reaches the ground overnight. I cleaned it once and it slowly came back. What's the best w…
Anyone else: G37 runs hot at idle but cools once moving
2013 Infiniti G37 xS, about 4,800 miles. Temperature creeps up sitting still and drops once road speed gives it airflow. Fans appear to run, but I haven't chec…
2021 Nissan Rogue — fuel trims are positive at idle and improve with RPM
2021 Nissan Rogue SV, about 41,000 miles. Long-term fuel trims are much more positive at idle than at 2,500 RPM. No obvious misfire. Does that pattern still ma…
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2018 Cadillac CTS-V, about 55,500 miles. A cylinder-specific misfire code appeared after one rough start, then cleared and the engine feels normal. Plugs are n…
2024 Toyota Tacoma TRD Off-Road — anyone else: Oil level dropping between changes — how much is too much?
2024 Toyota Tacoma TRD Off-Road, about 62,000 miles. I've started checking the dipstick every 500 miles and the level is definitely moving down between oil cha…
OldSchoolHunterCommunity StarterMay 5, 20262024 Toyota Tacoma TRD Off-RoadMichigan12 replies0 helpful
2023 Hyundai Ioniq 5 — rough idle disappears just above idle speed
2023 Hyundai Ioniq 5 Limited, about 74,000 miles. Idle has a slight shake once fully warm, but 100–200 RPM above idle it smooths out. No major loss of power. W…
2025 Hyundai Tucson — catalyst efficiency code but car drives normally
2025 Hyundai Tucson Hybrid Limited, about 29,500 miles. A catalyst efficiency code came back after clearing once.
HighwayTraveler475Community StarterMay 5, 20262025 Hyundai Tucson Hybrid LimitedCalifornia3 replies0 helpful
2019 Porsche Macan — catalyst efficiency code but car drives normally
A catalyst efficiency code came back after clearing once. The car drives normally and there are no misfire codes. Before condemning the catalytic converter, wh…
Porsche Cayman purchase: how much weight do you give a borescope?
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…
2019 Porsche Macan — oil level drops between services with no puddle
I started measuring the oil level every few hundred miles and it is definitely falling between changes. There is no obvious puddle and I do not notice smoke. H…
2021 Lexus ES 350 — random misfire code but engine feels fine
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…
2018 Subaru Forester — oil level drops between services with no puddle
I started measuring the oil level every few hundred miles and it is definitely falling between changes. There is no obvious puddle and I do not notice smoke. H…
2024 Subaru WRX — rough idle disappears just above idle speed
Idle has a slight shake once fully warm, but 100–200 RPM above idle it smooths out. No major loss of power. Would you look at mounts, vacuum leaks, ignition or…