Not shifting gears right

BRANDYPARKER43

MEMBER
2004 VOLKSWAGEN JETTA
2.0L
6 CYL
2WD
AUTOMATIC
200,000 MILES

My car will not shift gears until it reaches 35,000-40,000 rpm's, and then shifts hard. I thought it possibly could be low on transmission fluid, so I added a some fluid and that was not the issue I'm guessing. What could be causing it to do this?

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,526 POSTS

Hello,

It sounds like you have a partially clogged catalytic converter. To be sure here is a guide to help us confirm the issue:

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Please run down this guide and report back.

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Monday, July 15th, 2019 AT 12:55 PM

BRANDYPARKER43

MEMBER
2 POSTS

This is the first car I have ever worked on. I did change the rod bearings about a week ago successfully on my car, but I am not so sure that catalytic converter is it. But like I said I'm new to this so I am still going to check that out. I noticed today that I have antifreeze on top of my transmission, is there possibly any sensors in that area that could have been effected by the antifreeze if it possibly dripped on them? I checked for leaks to the coolant lines in that area but found nothing. Also now when I drive my car it's like the car won't go higher than 30000 rpm. Any ideas on why?

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Tuesday, July 16th, 2019 AT 2:23 AM

KEN L

MASTER CERTIFIED MECHANIC
47,526 POSTS

This will be a new question please post the coolant leak issue hear.

Please post your new question here, you must be logged in.

https://www.2carpros.com/questions/new

As far as the catalytic converter being clogged it lowers the vacuum which makes the computer think you are going up a hill and holds the shifts. Let me know. you can loosen the head pips and drive it to confirm the issue it will be a little loud.

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Tuesday, July 16th, 2019 AT 10:18 AM