Hello. I had a hole in my exhaust in front of the muffler, but when I got that fixed I noticed the car doesn't shift right anymore. Don't know if they are related or just coincidental. There is no pep when taking off unless I drop it into 2nd. If I manually shift, it doesn't shift from first to second or third to fourth (D3 to D4), only from second to third and my RPMs are around 2000 at idle. Any ideas?

 

Did they disconnect the pipe off the car sometimes they disconnect the solenoids off (thinking it's the o2 sensor) the front of the trans to drop the pipe look at that first.

 

maybe the hole was purposely made there, or left open for exhaust to bypass a clogged muffler or if before the cat a clogged cat, which is no good.