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Old 01-04-2013, 11:44 PM   #16 (permalink)
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The dealership replaced the 3rd & 4th pressure switches. No more D5 flashing.
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Old 01-05-2013, 02:17 AM   #17 (permalink)
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Makes sense. Also get into the habit of 15k ATF fluid changes


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Old 04-04-2013, 01:31 PM   #18 (permalink)
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What was the cost of having the 3rd and 4th pressure switches replaced? Did they have to pull the transmission?

Thanks.
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Old 04-04-2013, 09:16 PM   #19 (permalink)
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No codes showed up

My 2003 MDX starting doing the same thing this week. After reading the forum, i took it to the local Autozone to have the codes pulled. No codes popped up. Will a code always pop up with this issue, or should i have the codes checked again?
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Old 04-04-2013, 10:35 PM   #20 (permalink)
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It happened To me a frs weeks ago. Three torque converter shift valve A solenoid code P1738 if Inremember correctly the number...I'm sure it was valve A code. After checking thoroughly I saw the tranny plug under the water housing was loose...plastic was toasted and clip broke...replaced plug and connected it. No more D5 flashing and
Normal shifting again. BTW I knew it wasn't damaged tranny because in D5 she didn't change gears but she did changed gears manually by moving the gears stick.


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Old 04-06-2013, 04:12 PM   #21 (permalink)
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Update

Fyi, Turned out that it was a bad 4th gear pressure switch.
Part from Acura was $55
22 minute job, start to finish.

Done.
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Old 01-25-2014, 10:01 PM   #22 (permalink)
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Heres a good one guys - I have 04 MDX, 90,000 Mile, still under extended warranty. About a month back, CEL came on - took to dealer - pulled code P1078 (IMRC Valve), replaced it. I took the car back, drove fine fo another week or so, CEL is back again - same code, but its intermittent this time, again took back to the dealer - this time he cant pull code. Took back again next week, they caught the code, took the car in and called me that they went through with the Acura protocol and have found out that the Wire Harness under engine needs to be replaced. Gave the car back - now the D5 is blinking and CEL is also on. I dont suspect the tranny as the car runs fine and there is no noise - but then who know. Any ideas if the new Wire Harness is throwing tantrums?
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