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Unread 06-13-2013, 03:54 PM   #1
scrivenerc
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Join Date: Dec 2011
Location: Ft. Bragg, NC
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Rough shifts

Recently if i floor it it shifts really hard. Also sometimes when i come to a stop at a light, it will kinda of surge forward a bit and the rpms go up a but. I just replaced the TPS and IAC so they should be go to go. I have a 2000 4.7 with about 153,000 miles on it. Any ideas what cause these issues?

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Unread 06-14-2013, 06:21 AM   #2
scrivenerc
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Could it be time to changr trans fluid?
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Unread 06-14-2013, 06:59 AM   #3
Brandonsdad02
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Sounds like its low on tranny fluid. I just did a filter and fluid change on my 00 wj 4.7 and after installing a aux tranny cooler it took 7 1/2 qts to fill it. Make sure you use ATF 4
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Unread 06-14-2013, 07:07 AM   #4
scrivenerc
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I checked the fluid level and its good, doesnt look or smell burnt either.
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Unread 06-14-2013, 07:11 AM   #5
Brandonsdad02
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Quote:
Originally Posted by scrivenerc
I checked the fluid level and its good, doesnt look or smell burnt either.
How did you check it? Engine up to normal operating temp and trans in neutral?
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Unread 06-14-2013, 07:14 AM   #6
scrivenerc
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Yep
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Unread 06-15-2013, 09:31 AM   #7
scrivenerc
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Anyone else with any ideas. Could i need a new PCM or TCM?
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Unread 06-15-2013, 10:44 AM   #8
tim0
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check for vacume leaks. PCV could be culprit causing the surge as well.
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Unread 06-15-2013, 01:52 PM   #9
scrivenerc
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Whats the best way to check for vac leaks?
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