Transmission slipping?

My car has brown colored coolant, and having transmission slipping. Transmission was very low on fluid. Replaced fluid. Flushed out cooling system. Car drove very well for about seventy miles. No transmission slipping. Then started slipping again. Looked into engine compartment and more brown being forced out of the coolant reservoir and transmission was very low on fluid again.

I am having the same problem with ATF tan sludge in coolant. The coolant hoses were all replaced and the system holds pressure. The car holds temperature for a while then overheats and spews tan colored fluid to the reservoir. I think that the ATF pressure is much higher than the coolant pressure (13 psi -ish) so the ATF leaks into the cooling system. Do you know if there is a history of leaks in the ATF warmer? There are a couple of "o"rings between the warmer case and the mounting to the transmission and ATF could leak into the coolant there. Whatever is causing the leak, the problem does not appear until some miles are put on the car. The last occurrence occurred six miles after the engine first came up to temperature and the thermostat opened. Thanks for taking the time to respond. Noel Nochim

I was driving onto a bridge when my Tranny started slipping - it'd kick into neutral while I was in drive. I was in a bad portion of hte bridge so I threw on my hazzards and tried moving again, after turning on my car it went back into gear but still acted up a bit. As I tried making my return it did it a second time and fixed when I turned my car off and back on.

I maintained a 30-40 mile pace and it was driving well until midway back it stopped on the middle of the bridge. I kicked my hazzards on tried starting and restarting again but it wouldn't pick up the gear.

My tsc and engine light turned on. I got towed and went home. It was too late to check fluid levels and I had to work early this morning.

Should I be looking to save upwards of $1000-$2000. I know you can't give me an accurate diagnosis, but based on what I've said if you have any idea please let me know.

Thanks ahead of time to anyone who can give some input.

Cheers

Hey Noel,

Did replacing the ATF warmer solve the problem or how did you go about fixing it? Hope to hear back, thanks

My dad checked the level while I was at work and said it was low but had a fair bit in it.

Will be taking the car to the shop soon to see the code.

Thanks again.

I put a used transmission in a 2003 Honda accord 3.0. First and second change fine but third slips before it change. What could cause this? Also I have three set of sensors that are black and brown they all wiil put up to each other could they be crossed?

How do I check the fluid in park running or not? When I check it in park it seams to have fluid still in the dip stick tube. Cloud it be to full. The manual say check hot engine off never heard of that.

Well I had drove it. Shouldn't it came out then if it was over full?

My 2002 Accord(V-6/V-Tec)with auto tranny and 95,000 miles runs great except for the occasional 'jerking' or 'slipping' that feels like the transmission.

It becomes more noticeable when accelerating somewhere between 0 to 15mph and even more if accelerating up a driveway or small hill! Also, during 'stop and go' traffic, I am sometimes able to take of quickly without a problem. But then other times it seems like I press the pedal about a half second before the RPM's increase.

I really hope that these are not early signs of a major tranny disaster.