Automotive

Car AC Maintenance | Indy Auto Man, Indianapolis

Hands-on Car AC maintenance tips from the Indy Auto Man service men.

Everything You Want to Know About Your Car AC Maintenance

Technically, air conditioning in a car is not the most important system. Moreover, it is not mandatory – you can drive the vehicle without it. However, cars are becoming more comfortable, and today it is hard to imagine them without a climate control system.

Of course, the air conditioner, like any other equipment, requires timely maintenance. This affects the reliability and efficiency of the system. And also – the health of the driver and passengers. In this post, we gathered information about car AC – how it works and how often it requires to be serviced.

The Main Components of The Car Air Conditioner

1. Compressor

This unit creates high pressure to make the refrigerant (freon) move along the lines. The compressor can be driven by:

crankshaft (via belt drive). The most common option;
electric motor. It is rare – mainly on electric cars.
There is also a combined drive.

2. Capacitor

Structurally, this is a conventional radiator. It converts the refrigerant from a gas to a liquid. When the aggregation state changes, the working fluid of the air conditioning system is cooled.

The heat from the condenser is transferred to the radiator of the engine cooling system, which dissipates it into the atmosphere.

3. Dryer

During the AC operation, moisture enters the system, which crystallizes when cooled. In turn, the formed ice crystals can disable the compressor and harm other system components.

A dehumidifier prevents this – a tank with filter meshes and a filler that traps and binds moisture.

4. Expansion valve or throttle

The expansion valve controls the pressure in the system. Freon also begins to evaporate in it.

In some car models, an alternative solution is used – a throttle paired with a battery. The first is responsible for pressure regulation. The second is for the accumulation of excess refrigerant.

5. Evaporator

An evaporator is structurally another radiator. It is installed under the front panel of the passenger compartment. It is designed to evaporate freon and, as a result, absorb heat from the environment.

Water vapor is collected from the air as a liquid on the surface of the radiator, after which it is removed from the passenger compartment using a drainage system.

6. Evaporator fan

Used to increase the intensity of air recirculation in the cabin.

7. Electrical equipment

Electrical equipment performs the following functions:

management and adjustment of the system;
temperature control and maintenance;
forced air supply.

The list of electrical equipment and sensors may vary.

8. Pressure lines

The air conditioning system includes two types of lines – high and low pressure. The former has special requirements: they must withstand pressures up to 280–300 kPa and temperatures of 302°F or more.

Principle of Operation of the Car Air Conditioner

The compressor creates pressure and pumps gaseous freon. Due to the pressure, the refrigerant moves through the system and heats up.
The refrigerant is sent through the high-pressure line to the condenser.
Once in the condenser, the refrigerant cools and condenses. At this stage, the increased pressure remains.
Further, liquid freon moves along the high-pressure line to the dryer.
After entering the dryer, liquid freon is cleaned of water and other impurities.
The purified liquid refrigerant passes through the high-pressure line to the expansion valve or throttle. Then the pressure is reduced.
Freon goes through the low-pressure line to the evaporator and gradually turns into a gas.
The gaseous refrigerant picks up heat passing through the evaporator.
. At the same time, the heat supply to the evaporator radiator and a fan provides the blowing of cold air into the cabin. The evaporator collects water removed from the passenger compartment through the drainage system.
The heated gaseous freon goes again to the expansion valve through the low-pressure line and then to the compressor.

How to Check the Refrigerant and Oil in the Air Conditioner

The following method is not the most reliable one, but you can use it periodically if the air conditioner operates normally – without obvious issues.

Start the motor.
Turn on the system at full power.
Check the condition of the refrigerant through the sight glass (usually located on top of the dryer).

How to estimate the system condition

Air bubbles appear in the refrigerant for a short time. This means there is enough freon for the air conditioner to operate normally.
Many bubbles appear, and their number gradually decreases, but they do not disappear completely. Indicates that there is not enough refrigerant in the system.
The refrigerant is milky white with a large number of bubbles. It also indicates that there is not enough refrigerant in the system. In this case, you can not use the air conditioner – urgent refueling is required.

During the AC operation, oil lubricates the moving parts of the compressor. With a lack or excessive contamination of the lubricant, the compressor will rapidly lose its working life, resulting in premature unit failure.

To check the oil level, you need to take the following steps:

start the engine;
turn on the air conditioner and wait about 20 minutes;
check the oil level through the sight glass.

The oil level must not be below the minimum or above the maximum mark. Additionally, you should pay attention to the appearance of the lubricant: bubbles may indicate a depressurization of the system and, accordingly, the ingress of refrigerant into the oil.

Note: checking the tightness of the system is a mandatory procedure. However, one cannot do this without special equipment. The reason is that R134A freon (the most common) is colorless and does not leave pronounced traces.

However, the following signs may indicate depressurization:

decrease in the efficiency of climate equipment;
traces of freezing on highways;
oil leaks on the compressor.

Air Conditioner Maintenance

Maintenance of an air conditioner is not only filling with freon.

The list of operations includes:

Visual inspection of components and joints for leaks, freezing, corrosion, and mechanical damage;
Computer diagnostics (if the car is equipped with a climate control system);
Freon and lubricant level control;
System health check;
Checking the tightness of the system (using nitrogen, leak detector, or ultraviolet);
Checking electrics (wires, terminals, contacts) and measuring operating currents. If necessary, the elements are cleaned from corrosion, the terminals are tightened, etc;
Decontamination of the condenser, drain tube, and evaporator;
Cabin filter replacement. By the way, this procedure is performed more often than a full service of the entire system. Learn more from our guide.

Refueling the car’s air conditioning system is carried out in the following order:

Turn on the air conditioning system; warm up the engine.
Connect a vacuum pump to the compressor fitting.
Evacuate the system (several times; after evacuation, wait 2-3 hours).
Clean the cap of the filling fitting and the low-pressure line of dirt.
Put the filling equipment hose on the fitting.
Turn on air recirculation in the cabin with the engine running (it is necessary to keep about 1500 revolutions.
Open the low-pressure valve.
Connect a freon cylinder to the filling equipment.
The procedure is completed after cold air enters the cabin.
During the refueling process, check the pressure constantly. It should not exceed 285 kPa.

Note: The air conditioner is charged once every 2–3 years for cars up to 5–6 years old and annually for 7 years old and older.

Refueling an air conditioner is not an easy task. Getting it right is even more difficult. That is why the most rational decision is to address professionals. Schedule your visit to the Indy Auto Man service station for AC maintenance or repair.

Automotive

Russell’s early departure leaves Lando Norris on pole at the Hungarian F1 GP.

(CTN News) – Lando Norris and his McLaren squad survived a tough qualifying session for the Hungarian Grand Prix, but they know they must perform on Sunday.

Lando Norris needed to win Budapest after Oscar Piastri locked off the top row in the field’s fastest McLaren. Recent races have been costly owing to wasted opportunities and little mistakes.

He matched Max Verstappen’s pole lap at the Hungaroring, who was unhappy to finish third. In a confident and aggressive approach, the 24-year-old finished more than three tenths ahead of the Dutchman, hitting the apexes.

Piastri followed Lando Norris by two hundredths of a second on the second hot run, demonstrating McLaren’s speed.

McLaren is doing well since Lando Norris won the Miami Grand Prix.

His potential triumphs have been cost by team and driver error, for which both parties have taken responsibility. On Sunday, he and McLaren will know they must do well.

Norris was quietly pleased with his historic first pole in Hungary and third overall. Although confident, McLaren will also be proud of their recent race progress. No one has won the pole in Budapest since Lewis Hamilton won the race and flag in 2012.

Norris and his crew recognize they must capitalize on closing gaps with 12 races left to drive Verstappen to the finish. Lando Norris understands. Behind Verstappen by 84 championship points.

“I know we missed out on some races, but we did the best we could in every one of them, and I don’t want to get back into all that stuff,” he said. I expect Oscar and Max to challenge me in the rear, not a clean weekend.

“Every location and point must be maximized; the more we can do to return to Max and Red Bull, the better.”

Hungary is a great opportunity since Lando Norris Verstappen was plainly unhappy with his car and outperformed. This disappointed him twice because the team had swiftly upgraded this race.

Verstappen had stated that the upgrades will define the second half of the season, but he admitted that he did not think they had gone far enough and could not defeat the McLarens.

“The changes are effective, but we still need more as we are not at the top,” said he. “Despite the imbalance, I liked the laps. I was pushing hard, so you had these little moments. Fast lap times are less crucial today. Simple: we need to work more because we’re moving slower. McLaren’s qualifying performance suggests a lot of ground to cover.

Lando Norris completed his best lap despite two crash-related stoppages.

Verstappen looked great in dry Q3 hot laps. He set a record with a lap time of 1 minute, 15.555 seconds and was quickest through each sector.

Lando Norris followed and pushed through the corners with fearlessness, posting a perfect 1:15.227 lap time. Piastri improved to second place on the penultimate laps while Verstappen did not, and Yuki Tsunoda’s crash halted the session.

A tardy coda didn’t matter when practice resumed because the last two minutes on old tires were worthless. McLaren has all the cards, but they must perform at the highest level to prove the legendary brand can win again.

Carlos Sainz of Ferrari was fourth and Lewis Hamilton of Mercedes fifth. George Russell, Sainz’s teammate, was unexpectedly ousted in the first round.

Sergio Pérez of Red Bull struggled again in the first qualifying round. He hit the curb, lost the rear at turn eight, and crashed, interrupting the session.

Poor performance again for the Mexican, whose Red Bull berth is in risk after a succession of poor performances, especially in qualification. His contract, recently extended to 2025, may have a performance clause, and Red Bull is unlikely to tolerate him underperforming for long. He was sixteen.

Russell fell behind because Lando Norris Mercedes didn’t fuel the car until the session ended. The British driver was eliminated in 17th place after staying out when the track dried after the break.

Charles Leclerc of Ferrari placed sixth, Fernando Alonso and Lance Stroll of Aston Martin placed seventh and eighth, Daniel Ricciardo of RB placed nine, and Tsunoda placed tenth.

Nico Hülkenberg and Kevin Magnussen of Haas finished 11 and 15, Valtteri Bottas of Sauber 12 and Alex Albon and Logan Sargeant of Williams 13 and 14. Esteban Ocon and Pierre Gasly placed ninth and twentieth for Alpine, while Guanyu Zhou placed eighth for Sauber.

SOURCE: GN

Automotive

M5 Partially Closed as Cullompton-Exeter Crash Hospitalizes Two

(CTN News) – Two people were sent to the hospital for treatment as a result of the M5 tragic vehicle accident that happened in Devon.

The accident between two vehicles was the cause of the disaster. One more consequence of the crash is that it has left the M5 partially blocked to traffic to this day.

Between junction 28 for Cullompton and junction 29 for Exeter, the highway was blocked in both directions; however, one lane on the southbound carriageway has been opened up for previously closed traffic.

In a statement issued by the South Western Ambulance Service NHS Foundation Trust, they stated that they were notified of a traffic accident that had happened in the Exeter district at 2:29 p.m. on Friday, July 12.

M5 happened in Exeter, according to reports.

Furthermore, information was given to them by the South Western Ambulance Service.

To provide medical assistance to those injured, four land ambulances, each with two crews, an air ambulance, a critical care M5 vehicle, a doctor, an operations officer, and a responding officer were dispatched to the scene of the incident.

Furthermore, a critical care vehicle was dispatched. We also dispatched an air ambulance to the scene of the event.

Two patients were transported to their respective hospitals: one was transported by land ambulance to the Royal Devon and Exeter Hospital, while the second patient was flown there by air ambulance.

After being moved, the two patients were sent to hospitals in Devon and Exeter, respectively. Simultaneously, both patients were transferred to their respective sites at the same time.

Here’s what Devon and Somerset M5 Fire and Rescue Service said:

“We responded to the scene of a road traffic collision on the M5 at 2.30 p.m. today, between junctions 28 and 29.” The statement cited above was part of an official declaration.

A car that had been hit by another car coming from the other direction had two persons inside that had been rescued. It had been traveling in the other direction.

We offered support as the people were being taken out of the car. These people are now receiving medical assistance from the ambulance service in order to fulfill their duties.

The event caused significant delays for the M5 and the routes that pass through Exeter during the period when traffic was being redirected. In order to accommodate the traffic, this was being done.

A southbound vehicle experienced wheel failure, causing it to cross the center reserve and merge with the northbound road approaching. The car was going the wrong way, which is why this happened. The vehicle was traveling southward at that precise moment.

National Highways indicated that based on the facts they have provided, it is expected that the police would begin their investigation into the occurrence given the magnitude of the calamity that occurred. The entity that made this information public was National Highways.

The Devon and Cornwall Police Department issued the following statement:

“We know the M5 closure is causing traffic.”

The statement that was released is located beneath you. “We will get people moving safely when we can but please bear with us while we deal with the incident and causalities at the scene.”

In order to accommodate cars and other small vehicles that were traveling on the now-closed northern route towards M5 Taunton and Bristol, the back of the line has been shifted.

This was done to create space for these cars, which were heading towards Taunton and Bristol. The purpose of this activity was to provide space for larger cars. At this point, it seems like more and more vehicles are being stopped from going forward.

Due to this incident, a second lane has been opened up for use by any and all vehicles traveling southward.

SOURCE: ITV

Automotive

Honda to Cease Production at One of its Thailand Auto Factories

(CTN News) – The Japanese vehicle firm Honda Motor made the news in a statement that was posted on Tuesday. The statement stated that the company intends to center its production at the site that it operates in the province of Prachinburi.

As a consequence of this, the production of automobiles will be halted at the facility that it operates in the province of Ayutthaya in Thailand by the year 2025.

The more difficult circumstances that the second-largest car manufacturer in Japan is facing in the country of Thailand, which is located in Eastern Southeast Asia, are exemplified by this move. Thailand is located in Southeast Asia.

There are several reasons for this, including the fact that Chinese firms are determined to grow their market share in Thailand, and a growing number of consumers are expressing an interest in electric vehicles (EVs). They both play a role in contributing to the problem.

The combined output of automobiles produced by Honda’s two facilities has fallen throughout the course of the succeeding four years, going from 228,000 vehicles in 2019 to less than 150,000 vehicles annually. This downward trend has occurred during the course of the past four years.

The preceding four years have been the time period during which this decline has taken place. With regard to the sales that the company has made in Thailand throughout the course of the past four years, there has been a consistent range of less than 100,000 to less than 100,000 for the entirety of this time period.

This is according to Honda’s spokeswoman.

When the factory first opened its doors in 1996, the company anticipates that it would continue to manufacture vehicle components at that location. When the firm finishes manufacturing vehicles at the Ayutthaya facility in the next year, the spokesperson stated that the company intends to continue producing automobile components at the plant.

In accordance with the statement that was given by the spokesman, the Prachinburi factory, which was built in 2016, will be utilized for the purpose of integrating the facilities with which automobiles are created. This was said in the statement. There are only two factories in Thailand that are owned and operated by the vehicle manufacturer, and these two factories are the only ones in the country.

According to the statement made by a spokeswoman for Honda in Thailand, the company’s goal is to reduce the disparity between the number of automobiles it produces and the number of sales it has experienced in the nation.

According to the remark that was made by the spokesman for the company, the automobile manufacturer are already exporting their products from Thailand, particularly to other Southeast Asian countries such as Indonesia and the Philippines. According to a statement that was sent by a spokeswoman for the company.

Currently, Honda has no plans to invest in Thailand.

When it comes to mainland China, Honda and Nissan Motor, a Japanese automobile manufacturer that competes with Honda, have been hit particularly hard by competition from rising Chinese manufacturers.

Nissan Motor is a competitor of Honda. As a result of the fact that these businesses provide reasonably priced plug-in hybrids and electric vehicles that are loaded with software, a significant number of customers have been drawn to them.

Now, Japanese automobile manufacturers are at risk of losing clients in countries outside of China, such as those in Southeast Asia, to Chinese companies that are increasingly attempting to increase the quantity of automobiles they export and build up operations outside of China.

As a result, Honda Japanese automobile manufacturers are facing a potential loss of customers. They are exposed to this danger as a result of the fact that Japanese brands compete with Chinese brands in these locations.

BYD, a Chinese manufacturer of electric vehicles, recently launched a plant in Thailand that will be responsible for the production of automobiles that are powered by electronic batteries.

This plant was established last week. The Chinese electric car manufacturers are beginning to establish facilities in the country, and this factory is a component of the wave of investments that they are making in the country. These investments have a total value that is greater than 1.44 billion dollars together.

SOURCE |SCMP