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Old 09-14-2013, 08:08 PM   #1
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'02 Auto trans fluid CHANGE - shifting/lurching problems

I changed my transmission fluid (not flushed). I overfilled it like an idiot twice (long story), and rather than re-do it, I drained fluid from the return hose to the radiator, then filled it to the proper level.

Now she will lurch forward when in drive (but not accelerating), and when you do accelerate, the RPMs will go up, but the Jeep isn't going along with it very well.

Reverse does not seem to be an issue aside from some minor stuttering.

Any ideas?

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Old 09-14-2013, 08:23 PM   #2
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Did you refill it properly using ATF+4? Your jeep needs to be at operating temp, running, on level ground and in neutral for your year tranny. I'm sure you did all of that but you never know. It sounds like a fluid level issue.

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Old 09-14-2013, 08:30 PM   #3
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I used ATF4. After my OP, I went back and re-read the Haynes manual, and realized I skipped the last step. So, following the Haynes manual, I cycled it through each gear, then back to neutral. After that, I measured the fluid level, and it was below minimum. I'm really hoping that the issue is the fluid level. Until I can get more ATF4 in the morning, she's going to sleep.

Edit: I did not have it running and in neutral when I filled it. Could I have done some severe damage?
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Old 09-14-2013, 09:15 PM   #4
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Originally Posted by muddafugga View Post
Edit: I did not have it running and in neutral when I filled it. Could I have done some severe damage?
Damage is always possible when a fluid is low but i'm sure it's fine. It only has to be hot, running and in N when checking the level...not actually filling the pan. When initially filling after a pan drop you want the engine off and then put the 5.5-ish qts in. Don't start the engine with a dry pan if you can avoid it.
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Old 09-15-2013, 10:34 AM   #5
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Just wanted to follow up for closure. It was short about 1.5 quarts - I was well below the minimum level of transmission fluid. Once I got it back up to the "OK" level, I had no problems.

I appreciate your support, SeVeReDiStOrTiOn.
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Old 09-22-2013, 12:12 PM   #6
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Sorry - I have to reopen the thread on this one.

My transmission fluid levels are in the middle of the "OK" area on the dipstick (this is after the engine is already hot).

When the engine is cold, I am having some problems. When I put it in reverse, it will fairly consistently "miss" going into gear, as in when I give it some throttle, it doesn't move, just revs.

This same problem happens when I put it into drive. I give it throttle, and it just revs.

When the engine is hot, this problem does not exist. I've checked and rechecked my fluid levels. One thing to note is, when I changed the fluid, I also adjusted the transmission bands to the proper torque specs.

One last thing, for full disclosure. I changed the fluid because it was pretty much black with minor tinges of red color, and because it was also low on fluid. The magnet in the transmission pan had small metal shavings on it, too.

Does anyone have any ideas as to why this happens? Does it sound like I have to rebuild the transmission?
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Old 09-23-2013, 08:35 AM   #7
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bumping thread
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Old 09-23-2013, 09:45 AM   #8
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I never noticed a tranny dipstick had anything but its proper full mark. Anything lower than that is insufficient ATF. I'd bring that level back up to its proper level before assuming something worse is wrong.
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Old 09-23-2013, 09:59 AM   #9
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Thanks Jerry - see my post a few notes above. I've filled to the proper levels and still feeling what seem to be "misses" in shifting.
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Old 09-23-2013, 10:08 AM   #10
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Quote:
Originally Posted by muddafugga View Post
...I've filled to the proper levels and still feeling what seem to be "misses" in shifting.
The below is what I based my above response on...

Quote:
Originally Posted by muddafugga View Post
My transmission fluid levels are in the middle of the "OK" area on the dipstick...
Being at the "middle of the "ok" area" doesn't sound like its at the full mark. To me, there is no "ok area", only the proper full mark.
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Old 09-23-2013, 10:31 AM   #11
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Quote:
Originally Posted by Jerry Bransford View Post
The below is what I based my above response on...



Being at the "middle of the "ok" area" doesn't sound like its at the full mark. To me, there is no "ok area", only the proper full mark.
Oh, I'm tracking now. My dipstick has an "OK" mark on it, surrounded by a checkermark pattern, exactly like the one shown here. I'm right in the middle of "OK."
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Old 09-23-2013, 08:09 PM   #12
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I'm an idiot... For comparison, and I know it's not the same fluid so bear with me, I looked at the oil dipstick level (i.e. - what the fluid looked like on the stick itself) compared to the transmission dipstick.

Long story short, there is a huge difference between "oh hey, it looks like the fluid is touching the OK level" and "oh wow, I definitely see fluid at the OK level"

I was still low, basically, and I think this will solve the issue. I'm only embarassing myself right now to close out the thread with my findings.

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