My 1996 VW Jetta is jerking?
It started by just cutting off while driving on a highway. The engine was running but could not rev.
I took it to mechanic who took the whole week trying to find the problem. They started by saying it's throttle body, which they changed, and there was no difference, then fuel pump, which they changed and still no difference.
Then a computer box, which they changed and the car started revving, though you could feel something was not 100% right.
On driving the car started jerking. I noticed that it was jerking on the steep when the fuel was low (1/4 tank). I also suspected timing.
I took it to my VW specialist; they started by pointing at HT leads and distributor cap, which they changed and the car is still jerking. When they checked the timing with the timing light, they said it does not hold timing, but they do not know what the cause is.
Now the car does not hold the idling when cold, and you can still feel it cutting while driving. Any one who can help with this?
I have a 1998 Jetta 3 CLX with a similar problem; it jerks when going over a certain revs when cold, and also jerks intermittently when driving at a constant speed. Please let me know if you manage to resolve your problem. I will also comment if I should resolve it.