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07/04/2014

Diagnose KIA Sportage AC Fails

Car model: Kia Sportage GLs

Components: 2.0L engine and automotive transmission

Mileage: 54,214 miles

Auto problem: While the air conditioner can work properly when driving at a fast speed, its outlet is over hot when the car idles.

 

Auto diagnosing procedure:

I first check the problem syndrome and find out that when the temperature at the outlet is 4 Celsius degree when the car is driving fast and the temperature will rise to 9 Celsius degree when the car stops and idles. I inquiry the car owner about its repair history, and learn that its compressor has been replaced because of noises, and the entire air conditioning system has been cleaned at that time.

According to the syndrome, I guess the problem could be caused by problems such as coolant leak, FATc control module fault, three-way pressure switch problem, compressor problem or circuit problem.

I hook an Autel Maxidas ds708 up to automotive engine system and air conditioning system in a bid to get some error codes. But no error code is retrieved from these two systems. Then I read the air pressure of the system when the vehicle is idling. The highest air pressure is 2501 kPa, while the lowest air pressure is 350kpa, which are both higher than the average level. This is usually caused by too much coolant or bad condenser heat dissipation. The coolant level is normal, and then the problem is likely with the condenser. A photo of Autel DS708 follow:

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It is abnormal for a fan to run at low speed if the air pressure is that high. So I plug off the 3-way pressure switch, connect the switch with short stub, and then the fan immediately runs very fast. I use a MST-2800B multi-meter to test the switch and find out bad connection on one of the switch. I fix the connection, the fan can run normally, and the air conditioner can work properly then. http://www.findobd2.com

 

01/04/2014

How to Update the Launch X431 Tool?

 

Last year I bought a Launch X431 V. The tool works well and recently I heard that Peugeot software for the device is available for update. The new software version can work faster and smoother. But I cannot get the update package. Where can I download it?

Launch X431 with Wifi

Do you have an account of Launch X431 V? To get the update software, you will have to download it from the official website. If you do not have an account, you can follow the steps below:

1. Go to the official website of Launch X431: http://www.cnlaunch.com/english/index.asp.

2. At the bottom right side of the homepage, you will find a "Register" button. Click "Register", and you will go to the sign-up page.

3. Fill the blanks with your information in the sign-up page. You can learn your product serial number and pass code from your X431 tool package.

When filling the "Add" information, please enter the right telephone number, so that Launch can let you know further upgrade information.

4. After completing the blanks, click "I accept".

Note: Please remember the username and password. X431 Software packages on the website can only be downloaded after login in. If you forget the username or the password, you will have to provide your serial number and other information to get your username or password back.

 

27/03/2014

What Leads to a Car's Temperature Gauge to increase?

A vehicle's obd2 scanner temperature gauge will rise for numerous reasons, but some brings about are much more difficult to identify than other people. A scorching car could cause quite a few difficulties to your engine, transmission and various elements. The owner might obtain it tough to drive an overheating vehicle considering the fact that it's going to not tolerate idling or driving gradually by means of crowded streets on the sizzling day. Getting and fixing the situation are necessary to stay clear of causing more harm towards the auto.

Water Pump: A vehicle's water pump is used to amazing the engine as well as other parts on the vehicle. Whenever a water pump breaks or leaks, the engine are unable to awesome thoroughly. Some water pump troubles might be masked by other signs and symptoms, making it tough to differentiate. One typical symptom is the considerable really need to refill the vehicle with coolant. Though there isn't any leak from the coolant container, the engine will even now use too much coolant. Fixing the water pump will make sure the motor vehicle will not consume each of the coolant.

Cracked Radiator: Creator C110 The radiator makes use of engine coolant, sending it via numerous hoses to great the engine. From time to time a driver may not comprehend he has cracked the radiator, however it will at some point result in an overheated car or truck. Operating more than large products or perhaps a compacted snow financial institution can damage the radiator. 1 tell-tale indicator could be the sight of green liquid within the ground. That is the coolant leaking out. Once the crack is repaired, or perhaps a new radiator is put in, the engine will retain right heat ranges.

Broken Gauge: It isn't uncommon to possess a gauge break or not register any longer. Some automobiles have temperature gauges that have been overused, perhaps for the reason that the motor vehicle overheated previously, resulting in the gauge to fluctuate as well frequently. This frequent fluctuation of your gauge may cause the small spring or lever within the gauge to dislodge. This can trigger the gauge to acquire stuck from the scorching place. In case the gauge stays while in the "hot" zone, even if the vehicle is not working, a broken gauge is usually a actual likelihood.