2003 Ody vibrates between 55 mph and 60 mph
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Thread: 2003 Ody vibrates between 55 mph and 60 mph

  1. #1
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    2003 Ody vibrates between 55 mph and 60 mph

    My 2003 Ody (just 65K miles) is giving me a lot of grief lately.

    1. I feel a lot of steering wheel vibration travelling on some stretches of roads at about 35 mph.

    2. A month or so ago, I felt some hesitation at about 60mph. But it was very brief, came and went a few times for a particular trip.

    Since it was time for a major service, I brought it to a local Honda specialist, telling them both the symptoms. They said there's nothing wrong with the car except a couple of tires are out of round, and maybe one rim is a little bent.

    Brought the car to my tire guy whom I bought a set of BFG from in 2007 and he said the tires are not out-of-round. In any case, I am going to wait a little before changing out those tires.

    This past weekend, driving on the highway, my "D" light started flashing. Brought it in immediately on Monday to my Honda specialist. They found the code P1740 in the car computer, and suggested I bring the car to a dealer for a possible transmission job.

    So I brought the car to a dealer. They called me back and told me the only thing that is broken is the 4th gear pressure switch. I said great, that is certainly cheaper to repair.

    Got my car back today, drove on the highway on the way home just to see how the car drives.

    Now this is the disturbing part, between 55mph and 60 mph, the car vibrates a lot. The floor board is vibrating, the steering wheel is surprisingly steady. I got home still wondering if that was caused by those out-of-round tires. After reading up on the web, I decided to take it out for a drive again in the evening. There's this stretch of I-680 that has just been paved, it's so smooth. I slowed the car down to around 55 mph, sure enough, there was the vibration. I then tried to see if the tires are really the problem. I took my foot off my gas pedal, and the vibration stopped. I stepped on the gas, and the vibration started. Wow, that couldn't be the wheel could it?

    Now I am concerned it's really the transmission, and the dealer didn't completely diagnose the problem. I will bring it in again on Friday and have a guy drive with me to show him the problem.

    Any advice from anyone on this forum?

    I'm kinda disappointed at the quality of Honda after reading posts here.

    Thanks in advance.

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  3. #2
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    The Ody has an electronic transmission and so the computer usually tells you when something is wrong, as it did when the pressure switch failed. Also, transmission problems are usually not specific to a certain speed.

    Anyhow, what you might do is return to that stretch of smooth road and try your 55mph test again but this time in D3. This will route power through the transmission over a different path. See if the vibration is still there at 55mph or, if not, if it is there at a different speed.

    Another culprit might be a broken engine mount. Stepping on the gas might twist the engine into an odd position and misalign the drivetrain causing the vibration. Do you hear or feel a thunk when you shift into D?
    2002 Odyssey EX Fern (Granite) Green
    Honda hood protector, stainless steel flex brake lines, Honda block heater, AC condenser screen, Zymol wax
    151,000 miles/243,000 kilometres; original transmission; Amsoil MV ATF since 79,000 miles/127,000 kilometres; Magnefine aux ATF filter; Honda aux ATF cooler; 19 drain and fills

  4. #3
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    Try looking for EGR valve issues

    You could try a search for "EGR valve" or "hesitation" - happens anywhere from 45 - 60 mph. If it is this, the fix is an easy < 30 min DIY job unless you can get it done for free by the dealer as this is a known issue. I had mine done under warranty 1 yr ago.
    Odybertie
    02 EX SS

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  6. #4
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    Thanks Dave. I'll do that D3 experiment. I did have my "Front transmission mount, between engine and front subframe" replaced in August 2008. The mechanic said it was broken or close to broken. I wonder if one of the other 2 gave way since.


    Originally posted by davedrivesody
    The Ody has an electronic transmission and so the computer usually tells you when something is wrong, as it did when the pressure switch failed. Also, transmission problems are usually not specific to a certain speed.

    Anyhow, what you might do is return to that stretch of smooth road and try your 55mph test again but this time in D3. This will route power through the transmission over a different path. See if the vibration is still there at 55mph or, if not, if it is there at a different speed.

    Another culprit might be a broken engine mount. Stepping on the gas might twist the engine into an odd position and misalign the drivetrain causing the vibration. Do you hear or feel a thunk when you shift into D?

  7. #5
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    I just did the D3 experiment. The car drove smoothly all the way to 70mph. For some reason today the vibration in just D is also lower in magnitude (it can't be I am developing a tolerance for it can it? ;P) But obviously I can still feel it.

    After I came home, I put the car in neutral, and rev the engine. Smooth as silk.

    I'll bring the car in for a test drive with a mechanic tomorrow. I just want to get some advice here so I don't get handwaved away as being paranoid or ignorant.

  8. #6
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    Hi Dave,

    There's no thunk when shifting into D (I assume you mean P->R->N->D) from neutral. There's always been a thunk from P to R.

    On the road, shifting between D and D3 was smooth, no sound, no sensation.

    Thanks.

  9. #7
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    Yes, that's what I meant.

    Your test rules out tires, wheels, CV joints, and the final drive part of the transmission.

    As odybertie mentioned above, the EGR valve can cause engine vibration that disappears with a change in throttle position. That's what I would investigate next.
    2002 Odyssey EX Fern (Granite) Green
    Honda hood protector, stainless steel flex brake lines, Honda block heater, AC condenser screen, Zymol wax
    151,000 miles/243,000 kilometres; original transmission; Amsoil MV ATF since 79,000 miles/127,000 kilometres; Magnefine aux ATF filter; Honda aux ATF cooler; 19 drain and fills

  10. #8
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    Geniuses davedrivesody and . odybertie!! Brought it to the dealer to fix. I am not very handy with cars and all the pictures I saw convinced me it might take me 30 minutes to dismantle and maybe 2 days to reassemble. :P

    The dealer's mechanic went out on a drive with me, I mentioned the EGR, he pulled the car over, disconnected the EGR, and the problem was gone. We went back and the EGR valve was replaced.

    Thanks guys!!

  11. #9
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    Hi,

    I have a similar vibration in my '00 LX, between 65 and 75 MPH. It also is different from one day to another. I assumed that my engine mount was bad, but since I have an EGR flow problem (caused by a plugged port in the intake manifold) this thread has me wondering.

    My engine does rotate a lot when I put it in drive with the brake on and give it a little throttle. But I did the same to my almost new '08EX and it does the same thing.

    Could the plugged port be causing my vibration?

    Thanks,

    Dado4girls

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