You may have heard a mechanic or a car-loving friend describe a vehicle as "running lean." Since cars don't have fat content, ...

According to James Mugaga, a mechanic, when the engine starts vibrating, it is a sign it is receiving little fuel compared to the air it needs to operate effectively, hence running lean.

In addition to running at a high compression ratio, the Skyactiv-X engine runs extra lean. This means that there's waaay more air in the cylinder than gasoline, sometimes over twice as much air as ...

A faulty sensor cannot transmit accurate data to the car's computer, causing the engine to run unbalanced. An unbalanced engine either burns fuel with too much or too little air. When there is too ...

Engine Running Hot, Checking Tire Inflation, Minivan Hesitation, Bad O2 Sensor: Mike Allen's Weekly Auto Clinic Published: Sep 30, 2009 8:00 PM EDT Save Article ...

Does your friend's Versys stumble or surge or run too hot? You'll notice stumbling just as you pick up the throttle. If the engine gasps or hesitates in this transition from off throttle to on, it ...

2023 McLaren Artura: Run Silent, Run Lean The first in a new series of McLarens built on a lightweight architecture, Artura tops out at 205 mph. And its hybrid-enhanced engine makes it quiet ...

If your engine is running lean, it may be hard to start, accelerate poorly, or stall at idle. Your engine and exhaust might be hotter than usual, and if you remove the spark plugs, you might ...