There are only a few things that can bring more frustration than your car failing you in the morning. Cold weather can cause your car’s battery to malfunction, and some drivers may not understand why. However, by educating yourself on the facts, you will be able to avoid dealing with dead batteries during these frosty months.
In winter months especially, the sub-zero temperatures slow down the rate of chemical reactions required to fire up the battery and start the vehicle. Moreover, cold temperatures also make it hard for the engine to start thus making it require more power from the battery.
Additionally, below zero weather can freeze the battery. While a fully-charged battery is unlikely to freeze, one that is not fully-charged is susceptible to freezing. People also tend to use their cars much less during the cold months [...]
Today, we would like to provide some detailed information for customers to understand the depth of problems that our mechanics face when working on fuel systems.
Gas is highly volatile.
Those Hollywood explosions that you see on TV are typically produced when large volumes of gasoline are detonated. You can easily set your car on fire if you work on fuel system problems without proper training and tools. All it takes is a little spark or contact with hot surfaces for gasoline to ignite on your vehicle and spread like wildfire.
We, therefore, recommend that you do not attempt to carry out these repairs yourself and instead seek professional help.
If the air conditioner in your vehicle doesn’t keep you cool anymore, you might be in for an uncomfortable ride even on a relatively mild day. Unfortunately, the problem might not stop there. Some air conditioners can malfunction in such a way that they blow out hot air. There are a few possible solutions to this issue, and it might be a good idea to schedule an appointment with a qualified professional to get your car in working order once again.
Our guide will take you through the two most common types of problems car air conditioners exhibit, what the symptoms of these problems are, and some tips that might help you.
The Air Conditioner is Blowing Hot Air
If your air conditioner seems to be working but not blowing cold air or seems to be weak, a leak in the refrigerant, a problem with [...]
A/C sealants, also known as stop leak, are designed to be a ‘quick fix’ to seal leaks in the A/C system. The sealant is activated when it reacts with oxygen and/or moisture.
However, sealants can crystallize in the system, which can cause more harm to the A/C system. While the leak is covered by the sealant, this seal could possibly only last a few months. Furthermore, the sealant will remain in the system, and it could react with moisture already in the system, which comes from low refrigerant, causing major issues to the whole A/C system.
Listed below are ways in which a sealant can negatively impact the A/C system:
Crystallization can happen in the orifice tube or expansion valve (where moisture is present) clogging or restricting the A/C system.
The crystallization restricts the oil flow back to the compressor causing compressor failure.
If a technician begins the process of recovering the system (without [...]
On some GM applications the high side service port is located past the condenser and before the orifice tube on the liquid line. This makes diagnosing by gauges deceiving. Usually, the high side port is found before the condenser. With the port in front of the condenser, it gives you a more accurate understanding of what the pressure truly is going into the condenser. With the high side after the condenser, you could show a pressure reading that is false, because the condenser could be partially blocked. Therefore, the only reading you are getting is what is exiting the condenser.
The correct way to diagnosis this type of system, with the service ports so close together, is through temperature testing:
Check the temperature at the inlet and outlet of the condenser. *An acceptable temperature differential is 30°-50°F .
Car giving you the summer time blues? From AC vs. rolling the windows down to keeping your pet safe, here are answers to your summer driving questions.
Like most people, chances are good that when summer time rolls around, you’re ready to get in the car and go. From a day trip to the beach to a weekend getaway, summer is all about traveling and having fun. With the snow gone and heavy spring rains in the past, you probably think nothing of getting in the car and taking off. But what you might not know is that the heat can be just as tough on your car as driving in winter. From keeping an eye on the coolant fluid to cooling off a parked car, here are some tips for safe and comfortable summer time driving.
The GM HT6 is one of the most popular compressors replaced today. Mac’s offers two Sanden options for the two most popular HT6 compressors.
The first is the 6511339 HT6 O.E. style compressor for the GM 5.7 V8, Mac’s offers the 6511340 Sanden style replacement compressor.
Next for the GM 4.3L V6 applications with the 6511338 HT6 O.E. style compressor, Mac’s offers the 6512124 Sanden style replacement compressor.
The Sanden style compressor has been available in the industry for a long time. It is a direct, bolt-off and bolt-on, replacement and has an excellent reputation as a reliable, quality compressor with a cost advantage.
So whether your customer wants an OE style replacement or a compressor with a cost advantage, Mac’s has all your compressor needs.
Oil is an important part of the A/C system. Refrigerant charged oil circulates through the system while keeping 60-70% of the oil in the compressor at all times. This provides adequate lubrication to reduce friction (heat) and wear (metal particles that will cause premature compressor failure and clog condenser passages). When doing a compressor job, it is always advisable when removing the old compressor to drain the oil to see what sort of condition the system is in, and to see how much oil is inside the compressor. This will also help to determine if there is any oil left in the system or if the compressor failure was due to low refrigerant oil.
Never assume a compressor comes with correct amount of oil in it.