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Should I change (flush) my transmission fluid?

10-31-2014, 01:01 PM
I have a '96 Z24 2.4 automatic and the transmission seems to slip at times and rev even when it's very cold here in MN.

I purchase it at 85K on the odometer about 10 years ago. It now has 130K on the odom and I have never changed the transmission fluid.


10-31-2014, 02:16 PM
Way overdo, do it, what can you loose.

Blue Bowtie
11-02-2014, 09:09 AM
Instead of a flush, it may be safer to only drain and drop the pan, change the filter, and refill. Pay close attention to any material you might find in the pan since it could be a clue as to why it is slipping.

11-02-2014, 09:25 AM
I agree w/ bowtie. Pan and filter only. I would not flush it. Definitely check what debris is in the pan. Silt or chunks.

Tech II
11-02-2014, 10:36 AM
The machines today, are really not a flush......they are just a fluid exchange of the fluid going through the cooling lines....

Dropping the pan just removes about 60% of the old fluid......

Even with a fluid exchange, the pan has to be dropped to replace the filter, and check for "debris".......

11-02-2014, 12:03 PM
Don't mistake the magnet in the pan for debris. Take note where in the pan it was removed from, clean it off and put it back in the same spot.

11-02-2014, 07:10 PM
Thanks to everyone for posting.

So just a general question. Does the 2.4 '96 engine have a history of transmission problems from anyone's knowledge?

It's really scaring me because I don't know what I'm going to do if the tranny is bad.

12-01-2014, 11:59 AM
Just wanted to update everyone who was kind enough to post.

My Cav was 5 quarts low - they filled it and it seems to have alleviated the problem.

12-01-2014, 02:19 PM
With an 18yr old car you have to be doing some preventative maintenance if you want it to last. Oil, filter, plugs, wires, fluid levels, etc. You get the point. 1qt I can see, but 5qts is neglect.

12-01-2014, 10:32 PM
The car had been sitting for the last two years. Of course Chevy had to not make a dipstick for this particular engine though.

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