20 Most Recent 2003 Volkswagen Jetta TDI - Page 6 Questions & Answers

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Intercooler tube leaking

check for corrosion, both sides

remove the cap and dry out (crc-WD-40 ) dry off the HT leads . Dry off around the coils and HT leads.

relay stuck on..

check fue filter and anti syphen valve and fuel cap

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.

Battery is dead or dying.

Thermostat is stuck open. Needs a new thermostat.

could be that the switch is off for it or fuse is bad or the little switch is stuck

Check the oil level, anything beyond that needs hooking an oil pressure gauge to the lubricating system and checking oil pressure and electronics for the sensors.

Please check fuse if has some blown. If blown forsure have the causes either wiring shorted or unit damage

your car is low on oil check and refill

if it is white smoke you have a broken turbo.

could be input shaft or tail shaft of transmission broke.

I take it's a manual transmission, and if that's the case, if the engine is running, and you difficulty changing gears, either the mechanical synchronizer of the transmission or master or slave cylinder is malfunctioning. This is further discussed in this handy diagnostic artice:
http://yourhandymanzone.com/Your_Handyman_Zone_How_To_Pages_Vehicle_Car_Zone_Cars_Trucks_Vans_Transmission_System_Shifting_In_Manual_Transmission_No_Poss_Engine_Runs.htm

Here's another article discussing the car being stuck in one gear, which may give some complementary background information for you, specifying four probable causes of it:
http://yourhandymanzone.com/Your_Handyman_Zone_How_To_Pages_Vehicle_Car_Zone_Cars_Trucks_Vans_Transmission_System_Stuck_In_One_Gear.htm

This should help.

Good luck!
Brad