Question about 1991 Honda Accord

3 Answers

1991 Honda Accord

Hi, i saw your very helpful fix to the guy with the 91 accord that was shuddering at a low speed.. Its happening to mine too at around 1800 RPM..

I saw in your reply, you mentioned checking to see if the exhaust was touching the body, and mine is.. but why would that cause it to shudder?? I was thinking it was more likely the auto transmission slipping, but id like to hear why the exhaust might be to blame (as im no genius mechanic, id hate to switch out trans. for nothing..)

the car has 316000K on it, so not sure how much work is worth putting into it, anything you could suggest would be a great help..

thanks a lot, Jordon (dj_ooze@hotmail.com

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  • dj_ooze Oct 30, 2008

    hi, no havent seen a solution yet, whattaya think?? Thanks a lot for responding!!

    -Jordon


  • dj_ooze Oct 31, 2008

    Hi,

    It happens anytime its at around 1800rpm, (i think..) but i mainly notice it while accelerating.. i just recently got the car (for only around about $1000,so im willing to put a bit more into it..) - so im not too sure if this is a recent problem, I bought it from an auction/broker.

    Its just a bit of a shudder in the 'feel' of the acceleration, not really the whole car, the engine itself seems to run smoothly. I am thinking its a transmission slippage problem, but i am not much of a mechanic to say for sure.. no, there are no blinking lights, everything seems to be run fine, id say i mainly experience the problem when accelerating from a stop.. altho, sometimes I also get a similar shaking at a high speed - i am not sure if this is related to the low-speed shuddering..


    Thanks


  • dj_ooze Nov 01, 2008

    right on, thanks curt

    good to have confirmation, I'm going to run it until the problem got worse.. Im loving the car, it rides great aside from the lower RPM, I am hoping that the shuddering does not affect the structural integrity of the car, as Id be willing to rebuild it if neccesary..

    great answer, thanks again!!

    Jordon


  • Curt Downs May 11, 2010

    Jordan, some more info on the shuddering. U say it happens at 1800rpm, is this when accelerating, or slowing down, or just staying at 1800rpm? When u say it shudders, do u mean like a vibration, or shaking? Did this start suddenly, or all at once? Does it seem to be getting worse? Any dash warning lights on or blinking/flashing? Sorry for so many questions, but the more info, the better chance of figuring out what's wrong.

  • Curt Downs May 11, 2010

    Found your post on 10-30, if u still need help, please contact me. Not sure who at fixya answered the question u r referring to, if u have that info, include it. 316k !!! WOW.

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  • Honda Master
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Clogged egr ports have caused my 91 Accord to shudder at that specific rpm. My mechanic said my car was cursed and haunted since he changed so many parts and still couldn't figure out what was causing it to shudder like that, at such a specific range. I found out that the egr opens at that range and floods the one free cylinder(all the other cylinders ports are carbon clogged and don't get egr flow to them) with too much exhaust gas, causing a misfire in that one cylinder. I had to do the "drill out the egr ports and clean the intake of carbon build-up" fix to get my engine to stop shuddering. It's really a misfire, but seems like a shudder at that engine speed.

Posted on May 17, 2009

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Well since you bought the car obviously used, it may have been worked on by a back-yard mechanic like myself, and an enexperienced person while replacing a timing belt might forget to set the bolt to line up the harmonic balancers, which might be a cause to your problem, , another thing to check is if it's firing correctly, check to make sure your getting proper spark from your spakr plug wires, and also make sure that your plugs are gapped to specs... and as to the previous guys request, what are the guage readings when accelerating and the issue happens?

Posted on Jan 25, 2009

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  • Honda Master
  • 1,779 Answers

Jordan, it's possible it's the tranny, but try this, accelerate from a stop, watch the rpms before , during, and after the 'shuddering'. Does the tachometer steadily go up to 1800 rpms, and continue on smoothly, and at the same time the speedometer shows a smooth steady increase? If the trans. was slipping, the rpms would smoothly rise, (of course, u have to take into account that each shift to another gear, the rpms will drop, then increase, but it should be a smooth change) but the speedometer would not, it would stop rising, or noticeably slow down. With the high miles it has, it's gotta be tired and many components worn, difficult to determine exactly what, especially by email. It could be tires need to be balanced, wheel bearings worn, suspension components worn, motor mount issue, and yes, even the trans. Your description doesn't make it sound like it is a major issue as far as the cars performance, and again, based on the mileage, the bargain price you paid, I wouldn't replace the trans. unless this problem got worse, and had more factors pointing to a trans problem. I wish I could pinpoint the exact problem, but unless the symptoms worsen, or change, enjoy your honda. Let me know if u think of anything else that might be significant, or any new symptoms down the road.

Posted on Oct 31, 2008

  • Curt Downs Nov 01, 2008

    Thanks for the fixya rating (more than 1/2 of the solutions go unrated). I've got a 91 Prelude, my son a 92 Accord, great cars!

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