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How to Troubleshoot a VW TDI

Le 12 juin 2017, 14:42 dans Humeurs 0

If you don't want to take your TDI into the Volkswagen dealer every time there's an issue, it may be beneficial to learn how to do some troubleshooting of your vehicle at home. While there are many features on a VW TDI that can go bad,BMW ICOM A3 Pro+ the TDI has a few common problems. Some of these are small enough to fix on your own. Others will require expert repair. Either way, you'll gain some insight into the problem.

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Know what's under the hood and body of your TDI. TDIs have turbocharged diesel engines, but there are different versions. A 1996 or 1997 Passat TDI in the U.S. will have a B4 chassis, A3 engine and Garret GT15 Turbocharger. A 1997 through 1999 Jetta TDI has an A3 engine and probably a KKK K03-006 Turbocharger. The components of your car will be listed in the owner's manual, or check the build sheet that is located in the trunk, near the spare tire. This sheet will tell you the engine code. A "1Z" code stands for an A3 engine with a Garret GT15 Turbocharger.

 

Test for power if the engine will not start or is sluggish in starting. To check the power supply, put the car in neutral and the clutch to the floor if the car has a manual transmission. Turn the ignition to the "Run" position. Watch the dash for the "check engine" and "glow plug" lights.Launch X431 If they do not come on, you are getting no power to your engine. More than likely, the battery needs to be replaced.

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Determine if the engine is cranking. If the "check engine" and "glow plug" lights come on in the power test, the problem is probably not the battery itself. Turn the ignition to the "start" position. If the engine makes a noise like it is trying to start, you may have fractured connections between the engine and the battery. Check the wires connecting your battery to the engine for corrosion. If there is corrosion, the wires should be replaced. It is also possible that the connections have simply come loose. Tighten the connections and try starting your TDI again. This is also a symptom of low fuel, so fill up before you test again.

 

Check for a "relay 109" failure. If either the "glow plug" or "check engine" light has been coming on for seconds at a time and then going off again, this may indicate a relay 109 failure. This relay provides the power to all of a TDI's engine-based electronics. To diagnose the problem further, you must first replace the relay. If the lights continue to come on, the most common causes are the ignition switch or security system. If the "glow plug" light comes on intermittently by itself, check your brake lights. A burned-out bulb will cause the "glow plug" indicator light to come on.

 

Pay attention to your fill-ups if your TDI smokes when fully accelerated. This issue is often a problem with fuel quality. Switching to biodiesel and using a diesel fuel injector occasionally at fill-ups can cease the smoking.

 

Don't worry about every strange noise. If you are new to your TDI, you may have noticed a few noises that you haven't heard in previous cars. Many of these noises are normal. TDIs are known to make a swishing noise when the engine is shut off. This is the anti-shudder valve working.Autel MaxiDas Clicking noises from the engine compartment are the boost pressure control and EGR valves, which switch on and off regularly as part of normal operation. You may also hear some routine clicks in your TDI's steering column. All of these noises mean that your TDI is operating just as it should be.

Common Faults in the Range Rover P38

Le 8 juin 2017, 06:25 dans Humeurs 0

Appealing to the luxury car market, the Range Rover P38 combines best-of-class off-road ability with high-level comfort specifications. It launched in 1994, XPROG-M V5.70 and production ran until 2002, when the Mk III replaced it. However, a number of faults commonly associated with the P38 are prevalent both mechanically and electrically. Fortunately, enthusiasts and mechanics alike have documented these faults well.

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Electrical Faults

 

    The security system on a Range Rover P38 contains an engine immobilizer and lockout system on which the SUV's most frequent electrical problems have centered. Remote control failures of the system have occurred often, BMW ICOM A3 Pro+ but a performing a last-resort fix using key sequence turning in the driver's door can help you override the system failure. (The key sequence appears on the security card that came with the car.) Dead batteries, an additional issue with the security system, have often resulted from radio/static wave interference, which continually turns on the body electrical control module (BeCM) and drains the battery.

 

Mechanical Faults

 

    The P38's transmission can sometimes stick in Park, which occurs because a brake light fuse has blown that automatically stops you from driving without your brake lights working. Valve problems have occurred frequently in the P38; valves often become sticky due to excessive carbon buildup or even inaccurate valve tolerance measurements in the valve guides. Vibration in the steering wheel, Autel MaxiDas another mechanical issue, often occurs when the SUV travels at high speeds over off0road terrain. Adjusting the steering box provides an easy solution to the mechanical shudder.

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Physical Faults

 

    The P38 Range Rover is prone to fluid leaks of all types. Common faults include unreliable oil pan seals, oil leaks from the front and rear pinion seals, the O-ring seal on the oil pressure switch and the axle seals. Water leaks in the foot well, another common occurrence, Launch X431 may result from a fault in the air-conditioning system---usually the drain from the evaporator. Another prevalent fault occurs with the air intake filter, which decays over time and moves out of position, requiring regular checks for replacement. Finally, the windshield washer system fails over time due to heat exposure on the washer jets causing brittleness.

How to Replace an Oxygen Sensor on a Lexus SC400

Le 2 décembre 2016, 10:28 dans Humeurs 0

There are a variety of components in the emission control system of modern automobiles, one of which is the Oxygen (O2) sensor.GM Tech2 It measures the amount of oxygen present in the engine exhaust. The O2 sensor is linked to the Lexus SC400's computer, which then makes adjustments to the fuel/air mixture as the engine is running. This helps the engine run at peak efficiency, reducing exhaust pollution. The O2 sensor requires periodic replacement. Many owners can do the job themselves.
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Park your Lexus SC400. Set the parking brake, and open the engine hood. Let the engine cool completely before proceeding.

Locate the O2 sensor.MB SD compact 4 It's in the lower engine area on the passenger side, threaded into the exhaust manifold.
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Remove the wire from the sensor. Spray some anti-seize spray at the bottom of the sensor where it goes into the manifold. Let the fluid penetrate for a few minutes before proceeding.

Remove the sensor with the appropriate size socket and ratchet.Vagcom 16.8 Rotate the sensor counter-clockwise to loosen.

Install the new sensor into the hole and tighten firmly. Attach the wire and the job is finished.

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