Question about 2003 Volkswagen Jetta TDI

1 Answer

Road speed sensor

Shifting hard between 1st and 2nd gear Dealer reading is G-68 diagnostic
indicating speed sensor in tranny, or turque converter.
78,000 miles This is a Jetta Turbo 1.8 Your thoughts will be appreciated

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  • uvhamburgh Mar 09, 2009

    I have the same problem, it slams into gear around 20-25mph. It's intermittent and I can't get a garage to figure out what is going on. They always say it is up to specs.. This morning I started it, there was a screech, like the sound a wet belt makes. Down the road about a 1/4 mile it felt like it wasn't getting gas and when I goosed it a little, the MIL came on and started flashing. The car sat for about 6 hrs., it was started again, the light did not come on and there is no code in the memory.

  • Anonymous Mar 13, 2014

    check engine ligth. the car jerks when coming down to a stop from 2nd down to 1st gear, code reader come up whit po321 ignition/ distributor. i replace engine speed sensor behind the oil fiter but the check engine still on.

  • Anonymous Mar 20, 2014

    My 93 dynasty won't go in first and stays in 2nd and still won't go in gear even when Iget upto 40 miles what is the problem is it the speed sensors or the clutch pack please help

  • Anonymous Mar 20, 2014

    its been very cold and snow and ice on the roads is there a way it got wet in the shift linkage and froze up and when the car was driven the shifter was forced and it is very hard to get in to 1st gear and 5th gear too, I would like to know is it possable to fix the linkage from in side the car?

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  • 16 Answers

So the diagnostic code says the speed sensor is bad in the transmission? Make sure all the wires are tight to the transmission and in good shape. If they are you probably need to replace the sensor. If the transmission controller doesn't get the correct speed values it would cause some problems shifting. Wiring to a transmission can cause faults since the wires are subjected to heat and vibration. If you can't find any problems with the wiring or the wiring connectors it just might be the sensor is bad (stuff fails).
I do have to say that I am not sure what G-68 means. The diagnostic codes are usually five digit numbers with maybe a letter.

Posted on Sep 09, 2008

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