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Old 03-06-2014, 08:19 PM   #1
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Just installed new header and...

I need some help. Everything sounds better than before, there is a slight ticking sound and I am not sure if it is normal. I test drove it for 13 miles and no codes popped up.

Also, there is a new issue... when the jeep reaches 2000 rpm and is shifting from 1st to 2nd there is a slight jerk/hesitation and the rpm jumps slightly and returns to normal.

If I could get some help with these issues, I would appreciate it. Thanks.

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Old 03-07-2014, 07:51 AM   #2
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Without hearing or seeing the vehicle the tick could either be an exhaust leak. Or if it's a aftermarket header, it will be louder than your oem cast manifold. The shifting issue should be unrelated to manifold job

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Old 03-07-2014, 09:54 AM   #3
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I have the transmission issue you mentioned - I had the trans serviced at the dealer, new fluid/filter etc. This has lessened to to a degree but it still happens once in a while. My guess is that the previous owner completely neglected the transmission/abused it. No way to really know.
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Old 03-07-2014, 11:01 AM   #4
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Quote:
Originally Posted by oneeyebear View Post
I need some help. Everything sounds better than before, there is a slight ticking sound and I am not sure if it is normal. I test drove it for 13 miles and no codes popped up.

Also, there is a new issue... when the jeep reaches 2000 rpm and is shifting from 1st to 2nd there is a slight jerk/hesitation and the rpm jumps slightly and returns to normal.

If I could get some help with these issues, I would appreciate it. Thanks.
I would guess that you have an exhaust leak that is causing the engine to run poorly. You won't always get a code right away or sometimes not at all. Go back and check everything if you've driven for a while you may be able to see carbon blow by where the leak is. Check the doughnut between the header and the mid pipe. Good Luck!

-Ryan
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Old 03-07-2014, 11:08 AM   #5
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Originally Posted by bryanintowson View Post
I have the transmission issue you mentioned - I had the trans serviced at the dealer, new fluid/filter etc. This has lessened to to a degree but it still happens once in a while. My guess is that the previous owner completely neglected the transmission/abused it. No way to really know.
Mine started after changing the exhaust header though.

Quote:
Originally Posted by XTRyan View Post

I would guess that you have an exhaust leak that is causing the engine to run poorly. You won't always get a code right away or sometimes not at all. Go back and check everything if you've driven for a while you may be able to see carbon blow by where the leak is. Check the doughnut between the header and the mid pipe. Good Luck!

-Ryan
Thanks, i will have to make sure those bolts are tight.

Edit: also wanted to mention that i sprayed the vacuum lines with carb cleaner, wasn't able to find an intake leak.
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Old 03-08-2014, 04:53 PM   #6
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So I went through and tightened the bolts where the two catalytic converters and the header meet. The rough shift still exists when going from 1st to 2nd gear only. The Jeep has passed the state inspection, but I still want to fix the shifting issue.

Any other ideas guys?
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Old 03-08-2014, 07:37 PM   #7
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FIXED: hard shift from 1st to 2nd

After a good amount of searching the internet, I was finally pointed to the problem from the following thread. Hard Shifts
It seems my TV (Kickdown) cable came out of adjustment when I removed the bracket from the throttle body.

With the help of the following youtube video, I was able to successfully eliminate the hard shifting issue. The jeep now shifts so smooth that I can barely tell it has shifted. Hopefully this can help someone else in the future. Thanks guys.

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Old 03-08-2014, 07:56 PM   #8
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So what kind of header did you install? How much difference did it make?
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Old 03-08-2014, 08:04 PM   #9
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So what kind of header did you install? How much difference did it make?
I put on a pacesetter header. It was like $200 and i can tell the difference because i had a banks exhaust header on before but it had a few cracks in it since i bought the jeep. With the new header though i can definitely feel the power increase when coming from a stop.

Cant really say how it would be from stock manifolds.

This jeep has had a full banks power exhaust in it since i purchased it.

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