No not at all. I'm learning also at the sametime. My mechanic who's a good friend of mine plugged his computer also to see if I was getting any codes and nothing came up also.
Sucks now driving on the highway with the rpms higher now. I have no cat and resonator lol

 

No 4th gear is common on our 4T65E's. This is more then likely your problem: No 4th Gear

The labor is going to cost a bit to fix because you have to rip the tranny apart.

 

I was going to give you the same link Zipper did. In 2003 they made some improvements to the tranny but for us pre-2003 guys we have to deal with this.

Mine is starting to get a little finicky - and lately I'm driving with my car in 3 almost constantly (I always do in the city anyways) but with drivers in my area you do a lot of lane changing and speed adjustments because people can't drive, meaning a lot of going in and out of 4th as you change speeds, accelerating wear on the 4th shaft. I'll deal with the lower MPGs for now until I can get my tranny built up,

 

Have the same problem, had it rebuilt and changed the solenoids, still having problems. And I have no 1st gear

 

You really should have started a new thread instead of taking over this one, but, we need to know more about your car/transmission.

Where did you get the work done?

What all did they do/replace?

Have you checked the tranny fluid level and the condition the fluid is in?

Once we receive more info, we can help you out better.

 

If you happen to live in michigan,

and in the detroit metro area....I could get the trans R and R'd foryou at a cost of $1000.00....and a guarantee....