There are several reasons why a cars AC may not cool when at a stop and blows cool only when moving. The most common reason is the cooling fan for the condenser is not working. It's important to know that many times the cooling fan is shared by the radiator and condenser, other times there are TWO separate ones. The reason why a bad cooling fan can affect the AC so drastically is the fact that heat from refrigerant (Freon) is normally cooled when passing through the condenser. So even if the condenser fan is NOT working, it may not affect the AC while the car is moving at highway speeds. This is because air is passed through the condenser when driving down the road so the fan is not needed. When the car is at a stop, the condenser is totally dependent on the cooling fan to cool it down. Sometimes the cooling fan may be working, but it may be moving too slowly to sufficiently cool the condenser. To check the motor, a test light can be used to verify that it is getting power and ground to the electrical plug in. If power and ground is present and the motor is not working, the motor has an open circuit. When the cooling fan motor is worn, it may be started sometimes temporarily by lightly tapping on the electric fan motor with a small hammer or wrench. If the fan turns at all when this is done, replacing the motor will be necessary. This is just another way to verify that it is receiving the power it needs to operate. Also keep in mind that a cooling fan may start at any time (some even come on with the engine off) so be careful not to stick your hand in the way of the blades! Note that if the cooling fan motor has seized, it's likely that the fuse has blown also. So if there's no power to the fan and the motor is locked up, a fuse will more than likely need to be replaced at the time of the fan motor replacement.
Other Causes of Car AC Not to Cool at an Idle or a Stop
The car could be overheating - caused by something else other than the cooling fan.
Heat transfer from the radiator to the condenser can alter efficiency, if the car is overheating.
The AC compressor may not be pumping sufficiently at slower RPM's (revolutions per minute).
An expansion valve may not be regulating the refrigerant correctly.
Condenser fins could be bent or the condenser could be obstructed by foreign debris.
Air Power Tool
There are special condenser fin combs to straighten condenser fins. But in my experience, bent condenser fins are not that much of a common problem. A more common problem if you drive in the country, is pollen accumulated over time in between the fins. Trash from the road like a plastic bag or piece of paper obstructing part of the condenser reducing performance can happen anywhere. It's funny to me that during my time as an auto technician, many customers came in concerned that the AC wasn't cooling, but failed to notice that the car was overheating - even if the temperature gauge was pegged!
Cyber Monday Ingersoll-Rand 2130 1/2-Inch Heavy-Duty Air Impact Wrench 2011 Deals
Nov 29, 2011 01:06:33
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Cyber Monday Ingersoll-Rand 2130 1/2-Inch Heavy-Duty Air Impact Wrench Feature
- Offers 550 feet-per-pound of maximum Torque
- Full stroke tease throttle
- Easy glide forward/ reverse switch
- Multi position power management
- Lightweight reinforced aluminum hammer case
Cyber Monday Ingersoll-Rand 2130 1/2-Inch Heavy-Duty Air Impact Wrench Overview
This Ingersoll Rand impact wrench has all the performance features you expect from the Ingersoll Rand family of impact tools. This lightweight ergonomic package houses a powerful twin-hammer mechanism. Drive (in.): 1/2 (square), Speed - No Load (RPM): 9,500, Average Air Consumption (CFM): 4.4, CFM at Load: 22, Working Torque (ft.-lb.): 50 - 500, Max. Torque (ft.-lbs.): 550, Hammer Mechanism: Twin, Variable Speed: Yes, Inlet Size (in.): 1/4, Min. Hose Size (in.): 3/8, Noise Level (dB): 96.6, Tool Weight (lbs.): 4.2, Tool Length (in.): 7 1/4Cyber Monday Ingersoll-Rand 2130 1/2-Inch Heavy-Duty Air Impact Wrench Specifications
The Ingersoll Rand 2130 1/2-Inch Heavy-Duty Air Impact Wrench offers the powerful performance and advanced features you need to get the job done right the first time. Its robust twin-hammer mechanism and composite housing provide superior ergonomics, and its durable design pays off in years of quality performance.
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 Featuring multi-position power management and easy-glide forward/reverse switches. View larger. |
 Get the most out of the 2130 Air Impact Wrench with Ingersoll Rand Impact Sockets (sold separately). |
Like all of Ingersoll Rand's air impact tools, the 2130 Impact Wrench is an ideal choice for the discerning professional. With fewer working parts, simplified maintenance, and less wasted energy, this heavy-duty tool makes quick work of all your professional mechanic jobs. Use it for tire rotation, removing and tightening lugs, brake work, and much more.
550 Ft-Lbs Maximum Torque
The 2130 provides an impressive 550 ft./lbs. of maximum torque (50 - 500 ft./lbs. working torque) to tackle the tough jobs. At the same time, multi-position power management and an easy-glide forward/reverse switch give you reliable control for improved precision. And for smooth operation, the wrench features a full-stroke tease throttle.
Compact, Lightweight Design
Weighing just 4.2 pounds and measuring 7.25 inches in length, the 2130 can fit into tight spaces and won't put excessive strain on your wrists and hands. Its lightweight, reinforced aluminum hammer case also helps cut down on the bulk.
The 2130 is backed by a one-year warranty.
Ingersoll Rand Air Tools: Reliability and Power
Whether you're working in the shop, at the garage, or on a heavy-duty jobsite, you can depend on Ingersoll Rand air tools for quality and performance. Ingersoll Rand tools are powerful, durable, and easy to use, reducing downtown and improving productivity.
For more than 100 years, the company's advanced engineering, manufacturing, and service models have set a standard of excellence. Trust Ingersoll Rand to help you complete your work faster and easier than ever before.
What's in the Box
Ingersoll-Rand 2130 1/2-Inch Heavy-Duty Air Impact Wrench and manual.
 Protect your investment with the Ingersoll Rand Protective Tool Boot (sold separately). |
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