Radiators Caps Bennington VT

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Greene's Servicenter
(802) 348-1477
101 E Main St.
Wilmington, VT
Hours
Monday 7:00 AM - 5:00 PM
Tuesday 7:00 AM - 5:00 PM
Wednesday 7:00 AM - 5:00 PM
Thursday 7:00 AM - 5:00 PM
Friday 7:00 AM - 5:00 PM
Saturday Closed
Sunday Closed
Memberships and Certifications
Certifications : ASE, Carquest
Services
Air Conditioning/Heating, Alignment, Alternator, Battery, Belts & Hoses, Catalytic Converter, Clutch Cylinder, Cooling System, Diagnostics, Drive Belt, Electrical System, Exhaust Systems, Filters & Fluids, Fuel Injector, Fuel Pump, Fuel System, Head Gasket, Headlight/Headlamp, High Performance Service, Ignition, Inspection, Muffler, Oil Pan, Oil Pump, Oxygen Sensor, Parts, Radiator, Restoration Service, Shocks & Struts, Spark Plugs, Starter, Thermostat, Timing Belt, Tune-Up, Water Pump, Window M
Service Types and Repair
Acura, Aston Martin, Audi, Auto Clutch, Auto Drivetrain, Auto Engine, Auto Interior, Auto, Bentley, BMW, Buick, Cadillac, Chevrolet, Chrysler, Classic Car, Diesel Engine, Dodge, Emergency Auto, Exotic Car, Fiat, Ford, GMC, Harley Davidson, Honda, Hyundai, Infiniti, Isuzu, Jaguar, Jeep, Kia, Land Rover, Lexus, Lincoln, Lotus, Mazda, Mercedes Benz, Mitsubishi, Motorcycle/ATV, Nissan, Oldsmobile, Pontiac, Porsche, RV/Bus, Saab, Saturn, Small Engine, Subaru, Suzuki, Toyota, Truck, Volkswagen, Volvo

Napa Auto Parts
(802) 442-6387
201 Benmont Ave
Bennington, VT
Services
Auto Parts, Car Washes, Car Detailing

Barber & Fricke Automotive Inc
(518) 686-7745
129 Church Street
Hoosick Falls, NY
 
Dons Service Center 4 X 4 Parts and Accessories Inc
(413) 662-2385
394 River Street
North Adams, MA
Services
AC and Heating Repair,Alignment Repair,Truck Auto Body,Truck Parts,Tune up Repair

North Adams Tire
(413) 664-6361
163 River St
North Adams, MA

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Cambridge Auto Parts
(518) 677-8521
55 S Park Street
Cambridge, NY
Services
Auto Parts Retail, Storage Batteries Retail
Hours
Open 7 Days a Week
Products
Quality Parts, Accessories, Paints, Tools & Supplies.,

Midas Bennington
(802) 442-8131
139-41 Northside Drive
Bennington, VT
Hours
Monday 8:00AM - 6:00PM, Tuesday 8:00AM - 6:00PM, Wednesday 8:00AM - 6:00PM, Thursday 8:00AM - 5:00PM, Friday 8:00AM - 6:00PM, Saturday 8:00AM - 4:00PM, Sunday - Closed

Napa Auto Parts
(518) 686-7393
River Rd
Hoosick Falls, NY
Services
Auto Parts, Car Washes, Car Detailing

Advance Auto Parts
(802) 442-0779
113 Northside Dr
Bennington, VT

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Ralston's Auto Parts
(413) 664-7186
263 State Rd
North Adams, MA

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Radiators Caps Are Important Too

By Bill Siuru   

While radiator caps look simple and do not cost much, they are critical for a properly Operating cooling system. A faulty cap can result in overheating, loss of coolant or major engine damage, so it is important that it is checked periodically and replaced if necessary.

To prevent overheating and coolant loss, cooling systems are pressurized raising the coolant's boiling point about 3-degrees F for each additional psi above atmospheric pressure. The cooling system is pressurized as the engine warms up and the coolant expands. The radiator cap's pressure relief valve allows pressure to build up to a specified level, then lets excess pressure to escape. In an "open" systems found in older vehicles, excess pressure escapes to the atmosphere through an overflow tube. As the system cools, air enters through the overflow tube and coolant is lost. Therefore, "closed" or reservoir cooling systems are used in later model vehicles. Here, as the coolant expands it goes through the over- flow tube into a reservoir. The radiator cap now serves as a vacuum relief and siphon valve allowing coolant to be siphoned back into the radiator as the engine cools and the coolant contracts.

Radiator caps also serve as pressure relief valve to prevent excessive pressure in the cooling system after the engine is turned off. Unchecked high pressure could cause damage to the radiator, heater core, hoses or water pump seal. The pressure cap also prevents radiator hoses and tanks from collapsing due to the partial vacuum which would be created if air was unable to enter.

Check the radiator cap during routine maintenance, when coolant is tested or when coolant is replaced. Check only when the engine is cool. Then with the engine off, place a rag over the cap and remove it. Turn it counterclockwise about 1/4-turn until it reaches the safety stop. Allow all pressure to vent before removing the cap by pressing down and turning it counter-clockwise. On some vehicles, the radiator cap is located on the overflow reservoir.

Once the cap is removed, Pressure test the cap noting the maximum pressure when the cap valve opens. Caps come in a variety of pressure ranges: 4-pound caps (3-5 lbs.), 7- pound caps (6-8 lbs.), 13- or 14-pound caps (12-16 lbs.) and 15- or 16-pound caps (14-18 lbs.). The cap should be replaced if it fails to hold the rated pressure for one minute. Using a cap with the wrong pressure rating can cause over pressurization or...

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