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L4-1.9L Turbo Diesel

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Car went backwards when I had it in drive.
This is a known issue in the Volkswagon Jetta transmission. Converter drain back is a situation where the automatic transmission fluid drains back into the transmission pan causing this kind of a reaction. Some of this is normal, but not...
Question
Car sputters and shakes below 1500 rpms especially
There is a common problem with this specific year and engine of VW TDI's. The camshaft material is not hardened enough, which leads to abnormal wear of the lobes and damage to the lifters. The fuel injectors are also controlled...
Question
Car starting problem
The problem may lie within the fuel system. Most vehicles have whats called an anti-drainback valve. It prevents fuel from draining back into the fuel tank when the vehicle sits for a while. Start the vehicle, shut it off, then...
Question
Hi, I have an intermittent fault, when I drop down the gears, occasionally, the acceleration becomes sluggish, and car vibrates.
A common problem with the 1.9L diesel motor is injector timing. Injector timing is critical and can have many varied symptoms. At 102,000 miles, I have to wonder if the timing belt has been done. The timing belt is what...
Question
New wiper motor not working.
The most likely cause of this is seizing wiper linkage/transmission. This is the part that the wiper motor attaches to, and actually relays the wiper motor motion into movement of the wipers. This problem is very common for VW's. You...
Question
Anti-roll bar advisor on MOT - 10 Months ago
Anti-roll bar links, also called stabilizer bar links, are generally fairly inexpensive to fix, though I can't actually quote a price since you appear to be in Europe and our service only works for the United States. The cars we...
Question
slow cranking
Since diesel engines operate with much higher compression ratios than gasoline engines, battery health is very important, especially in cold weather. Have the battery checked and replaced if it tests low. Also important for starting a diesel engine in cold...
Question
If theres a small hole in front exhaust will it affect the fuel consumption?
Hello. This may potentially affect fuel economy due to the fact that this introduces more oxygen into the exhaust flow. When this happens, the oxygen sensor will detect additional oxygen flow which will cause it to relay this to the...
Question
car will crank battery fine but will only start with jump leads
Hi there: If you're having these issues only when it's really cold outside, it's possible that the battery is low on cold cranking amps. Batteries are measured in cold cranking amps which is the amount of amperage the battery can...
Question
Hole in engine. What's a probable cause for this?
It sounds as though there's no option for this car other than engine replacement. A catastrophic failure like that usually only results after the car has been driven with internal problems like main or rod bearing failure. There was probably...
Question
Brake booster heat issue.
Hello and thank you for your question. There could be an issue with the proportioning valve or ABS module. I suggest flushing out all of the brake fluid and bleeding all ports on the brake system. When replacing all of...
Question
Engine light on. when accelerate leak a power sometimes. When press a accelerator pedal, sometimes have a noise sound like a snore
Hi there. I would need to know what year your VW is to be able to help you more in depth on this. From what you are explaining it sounds like you may have an injector that is failing or...
Question
Brake booster heat questions again...
Hi and thanks for your question. The brake booster is vacuum operated and only aids in the stopping force to the driver's foot pedal. If vacuum pressure drops, then the foot pedal feels very firm, just like stepping on the...
Question
Heat/ ventilation
Hi and thanks for contacting YourMechanic. The climate control switch has a short in it and is keeping the exterior blend doors open and not shutting them. Check for voltage a the exterior blend door motor. If there is voltage,...
Question
glow plug symbol flashing without OBDII code
Oddly enough, a flashing glow plug light does not necessarily mean you have a problem in the pre-glow system. It can also mean there is a fault in other aspects of engine management. Much of the information that the car...
Question
Car shaking and smoking
Hi there. The shaking and smoking issue you're experiencing may be caused by a fuel leak. Typically, if you look at your fluids or under the hood and can't see anything leaking, such as coolant, oil, or power steering fluid,...
Question
Burning oil
Broadly, if oil consumption exceeds 1 quart for every 1,000 to 2,000 miles that's when we start to refer to oil consumption as "excessive". Ideally, consumption should not exceed 1 quart in 4,000 miles or more. On your vehicle, before...
Question
Check Engine Light on
This relates to the throttle control actuator. This is a module that controls the opening and closing of the throttle plate which is what allows air and fuel into the engine. When this is not working properly, this may cause...
Question
Lots of white smoke
Hi there: The problem with diagnosing issues with a Volkswagen TDI remotely is that most of the common white smoke issues (piston rings, valve guides) don't apply with the turbo diesel system. The best and virtually only way to diagnose...
Question
We plugged in my bug for the cold temptures tonight and some white smoke started coming up with a burning smell. W
Hi there. If you got this smoke when the block heater was plugged in then it is possible that there is a short in the circuit. In most cases this is caused by a short in the heater circuit, but...

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