i have a 1994 VW Jetta 2.0ltr manual trans. Recently put in new or slightly used transmisson to replace old one which went out. Car over all has been great to me. This is my second Jetta I have owned.

My car has been shaking or hesitating when I press the gas. It does it in just about every gear and I would say maybe more so when its warmed up. It also has been dying after Its warmed up and I stop at a store and start it again. Takes several attempts to get it to start.

We have researched this everywhere and found so many possible issues it may be. We so far have replaced the cap and master air flow censor. We also found a cracked pipe which we jimmy rigged to work until the part comes by mail.

Any help with this would be VERY APPRECIATED as we would like to avoid letting it sit in a shop. The problem seems to come and go so I have doubts a mechanic can diagnose unless its doing it then and there.

Thank you in advance!

 

You're right it could quite a few things but you look at fuel and air. Vacuum leak, clogged fuel injectors-throw some fule injector cleaner in there. Does it do it no matter what the fuel level is? Also coud be throttle body, when was the last time you replaced the battery? Check spark plugs, maybe one fouled out and you're only firing on 3 cylinders.

 

spray the coil with a spraybottle full of water see if it gets worse those coils crack all the time and the spark will jump out of it and ground out