Question about 2003 Volkswagen Jetta TDI

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My 2003 jetta has no check engine lights or anything that appears to be a problem. it randomly dies generally when coming to a stop or slowing down usually when it heats up. it acts up alot more when the air conditioning is on. when it dies it looses ALL power. the digital clock resets and radio powers off ect... help?

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It sounds like the battery cables are loose or like with my car the battery wire some how got cut and had no indication when I pulled the car into garage next morning it didn't start.

Hope this is a bit of help

Matt

Posted on Jul 17, 2009

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EPC LIGHT WONT STOP in my 02 Jetta


When was the last time you changed your Air filter( A dirty filter can put MAF sensor out of range). How about the fuel filter (Fuel starvation). These filters should be changed every 30,000 miles . It is normal for all of the dash lights to come on if the engine stops running. Is the Jetta a Diesel or Gas. Perform The OBDII scan again to see if current faults are present. Do the cheapest fixes first. Also check oil often. The low oil sensor will trigger engine shut down if more than 1 quart low

May 21, 2017 | Volkswagen Jetta Cars & Trucks

1 Answer

My Jetta is not a TDI....My car is dying when I come to a stop. It will start right back up. It also shows the battery warning light. Would this be the battery or alternator?


It is possible.

When at idle the RPMs drop as the engine slows. This results in the alternator slowing. If it is failing or you have a problem with the charging system it can cause the car to die.

Usually however with a charge failure it will not start back again easily.

Try checking under full load. Run all electrical systems radio, heater, lights etc at idle. If you see the lights start to fade and the engine dies it is likely the charging system.

Most likely the alternator or part of the regulating system.

You can have the alternator tested or you can do it yourself.

Connect at voltage tester to the terminals on the alternator. Run the engine and measure the output. It should read as per the indications on the alternator. There is a sticker on the alternator telling you the output.


Start there.

Hope this helped. Please rate if this helps you.

Oct 19, 2009 | 2001 Volkswagen Jetta TDI

2 Answers

1996 VW Jetta with 2.0 engine. Dies when slowing from high RPM


Check your vacuum lines, make sure there is no leaks, and go from there, then all you electrical connection in the engine compartment.
I have a 1996 Jetta Trek Edition, the hoses, and wire harness, are so brittle, any movement can cause hoses and wire insulation to crack.

Apr 27, 2009 | 1996 Volkswagen Jetta

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2003 VW Jetta TDI Check Engine Light Issue


Try disconnecting the battery (unhook on of the terminals) wait for like 15 mins, hook the terminal once again and start the car. I also own a 2003 Jetta and once my engine light would come on after 2 mins of driving. Disconnecting the battery is like resetting the computer and hopefully the sensor.

Apr 09, 2009 | 2003 Volkswagen Jetta TDI

1 Answer

My engine in my '03 toyota matrix xr dies.


check the mass air flow sensor it is hooked with air cleaner

Feb 23, 2009 | 2003 Toyota Matrix

1 Answer

Truck dies when i stop or slow down


Here is the most common cause of surges and stalls and low idle rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Feb 17, 2009 | 2003 Dodge Durango

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