brandan736
New member
I changed the timing belt on my '02 Jetta this past weekend. I used the timing belt tool kit from Metalnerd and a timing belt kit from Dieselgeek. I also have VagCom. I followed the procedure for the installation given in the "how to" section of this site, and also had the Bently manual for reference.
When got everything put in, I rotaged the engine as directed with no issues. I started the car with VagCom running to set the timing. When I would open "basic settings" the car would start running poorly. I then opened the measuring blocks to read the timing and the car started running fine again. I went ahead and made the adjustments to get to the middle of the band shown in the manual.
The car was running great for two days. I was on the highway and pushed down hard on the accelerator and the car stalled and lost almost all power. I limped into my parents, less than 1/4 mile.
I took the valve cover off to inspect the cam and lifters. All looked ok. I rotated the flywheel to have the -0- at the bottom of the window, took the vacuum pump off and inserted the locking tool into the slot. I also checked that the injector pump was in alignment, pin would go into the correct hole (all three layers). So far, so good.
I then hooked my VagCom up to check the timing, again looking at it in measuring blocks. It had changed from where I put it. I readjusted it to get back in the middle of the band. The car still idles fine but stumbles when I try to accelerate. I watch the TDI timing graph and the intersecting point of 2&9 drops out of the window when I rev it up.
I spent several hours searching through threads, but I couldn't find any help on my situation. Help or suggestions would be greatly appreciated. Sorry for the lengthy write up.
When got everything put in, I rotaged the engine as directed with no issues. I started the car with VagCom running to set the timing. When I would open "basic settings" the car would start running poorly. I then opened the measuring blocks to read the timing and the car started running fine again. I went ahead and made the adjustments to get to the middle of the band shown in the manual.
The car was running great for two days. I was on the highway and pushed down hard on the accelerator and the car stalled and lost almost all power. I limped into my parents, less than 1/4 mile.
I took the valve cover off to inspect the cam and lifters. All looked ok. I rotated the flywheel to have the -0- at the bottom of the window, took the vacuum pump off and inserted the locking tool into the slot. I also checked that the injector pump was in alignment, pin would go into the correct hole (all three layers). So far, so good.
I then hooked my VagCom up to check the timing, again looking at it in measuring blocks. It had changed from where I put it. I readjusted it to get back in the middle of the band. The car still idles fine but stumbles when I try to accelerate. I watch the TDI timing graph and the intersecting point of 2&9 drops out of the window when I rev it up.
I spent several hours searching through threads, but I couldn't find any help on my situation. Help or suggestions would be greatly appreciated. Sorry for the lengthy write up.