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The air inside a tire condenses in colder weather, taking up less space and lowering tire pressure. The Consumer Reports website notes that tire pressure will drop 1 psi for every 10 degree drop ...
Goodyear Auto Service also provides free air pressure checks at any of their five locations in the Phoenix metro area and one in Tucson. They are open from Monday to Saturday from 8 a.m. to 7 p.m.
Cold inflation pressure is the inflation pressure of tires as measured before a car is driven and the tires warmed up. Recommended cold inflation pressure is displayed in the owner's manual and on the Tire Information Placard attached to the vehicle door edge , pillar , glovebox door or fuel filler flap .
Carburetor heat (usually abbreviated to 'carb heat') is a system used in automobile and piston-powered light aircraft engines to prevent or clear carburetor icing. It consists of a moveable flap which draws hot air into the engine intake. The air is drawn from the heat stove, a metal plate around the (very hot) exhaust manifold.
A cold start is an attempt to start a vehicle's engine when ambient temperatures are much lower than its normal operating temperature. [1] A cold start can be difficult for an engine due to higher viscosity of oil and fuel in cold temperatures.
Most vehicles manufactured from the mid-1970s until the mid-1990s have thermostatic air intake systems that regulate the temperature of the air entering the engine's intake tract, providing warm air when the engine is cold and cold air when the engine is warm to maximize performance, efficiency, and fuel economy.
Later systems used electric chokes or exhaust-heat chokes for cold enrichment, although these had issues of their own. Additionally, the vapor pressure of modern pump gasoline may not be appropriate to prevent percolation in the Ramjet fuel distribution spider. [5] The cranking signal valve was also the source of reliability issues.
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