Hansell M Disla

Hi guys I have a 2010 Acura MDX and I want to ask you guys if somebody here has any clue where is the location of the 2nd and 3rd gear transmission pressure switch? I would like to changes them because I have a little jerking transmission from 1st to 2nd gear shift. Thank you.

acuratech481

Transmission fluid done at all? If not I'd start with that but more than likely its bad learned driving behavior. A TCM reset will fix it. Without HDS you can do a battery cable reset for 15 minutes (this will clear everything, so an idle relearn will need to be done and you'll need your radio code).

Pressure switch replacement won't do anything for you other than waste money.

dzionny_dzionassi

here you go:

Hansell M Disla

Thank you so much brother for your help. Let me ask you something the other I tried to reset the computer taking the battery cable off and I let it seat for 1 hour but when I came back to the car and put the battery cable on. Everything was like before except for the radio code. What’s the best way to reset the transmission computer like factory ?

acuratech481

Take both battery cables off, put a rag over the top of the battery so the battery cables can't come in contact with the battery posts, then short the battery cables together with a jumper wire for approx. 15 minutes. This drains all residual power from capacitors and such, thus resetting everything.

Hansell M Disla

hey brother thank you so much . I replaced the 2nd pressure switch on my MDX with no result but I thought the 2nd one was the one in the bottom and you showing the one in the top from 2nd I will try it the the top one and see if I can get results and for the 3nd pressure switch I was wrong too I thought it was the switch in the bottom not the top one.

Hansell M Disla

hey brother thank you for everything I did just as you said but I can’t see any difference in the shifting beahavior the same jerks feels from 1 to 2 nd is still there. I was cheking the car history and I see the transmission pcm was reprogrammed back in the 2012 and the car was 42k miles now the car is 174k miles do you think if I try it one more time reflashing the tcm will work. Or I just need to get ready to change the transmission ? I remember one day when I was going to my work. It was cold and I didn’t warmed up the car and when I was driving I feels like a big clunk in the transmission and it didn’t want to go more then 20 miles per hours. And it was stuck in 3 gear so I stopped . Turn the car off for 1 minutes and then turned back on and then everything was fine. That was almost 2 years ago but after that I also flush the fluid 3x3 I don’t have any other issue with the gear shift except that little push forward when I take off from a stop.

csmeance

when is the last time you did the 3x3?

Hansell M Disla

hiii I did the 3x3 like 15 months ago. I got less than 12k miles since that.

Hansell M Disla

@acuratech481 hey brother how are you doing ? Sorry for been bothering you but I have a question may be you can help me out with the information. I recently did a full Transmision fluid drained 3x3 ten quartz of Acura atf and I still have the same issue with my 2010 Acura MDX it jerks changing from 1st to 2nd gear shift. In traffic and pressing gently the gas . I also did a tcm reset with a scanner and a throttle relearn and nothing same as before. My question is if I take the car to the dealer do you think they may be able to do a reflash of the transmission software update that was already performed back in 2012 ? Or I just need to get a new transmission for my car and end of the story ? I did take the car to 2 transmission shop near me and they test drive the car and told me the same I can drive the car but the tranny is going out and one time i when to the dealer and they told me that they feel the issue but was almost in notable. But when I’m in traffic is very irritating issue. Thank you for your time.

acuratech481

If 2 transmission shops told you it was on its way out, I think I'd take their word for it. Especially since you've tried everything I would've tried. Junkyard transmissions can be had for pretty cheap. OEM reman is probably like $4500 and that's even if you can get one. Everything is on backorder lately, we can get parts for anything...