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2005 Honda Accord Car shakes when accelerating beyond 50 MP

Tiny
HARRYPOTTER
  • MEMBER
  • 2005 HONDA ACCORD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 45,000 MILES
Hi

My car shakes very badly when I accelerate beyond 50 MPH (getting on freeway or going uphill on freeway). As soon as I take the foot off the gas pedal, the shaking stops. The car runs ok at speeds below 50. I took it to the dealership and they could not find anything wrong with the axels or suspension.

I have the new tires, balanced and rotated. I also got the wheel alignment done couple of times in last 3 months.

Also, if it was alignment or out of balance tires, the shaking/vibration would be there at 70MPH going downhill but it is not there. I am not sure if it is transmission or engine problem of something else.

I have been performing regular servicing at the dealership.

Thanks
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Wednesday, December 16th, 2009 AT 5:04 PM

19 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 POSTS
I would think it has something to do with the output bearings or the CV joints. Did they check that? Also, are the motor mounts good?

Let me know and thanks for using 2carpros. Com

Joe
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+4
Thursday, December 17th, 2009 AT 5:37 PM
Tiny
JENNESSEE
  • MEMBER
  • 3 POSTS
This is your Trottle Position Sensor that has to be replaced. You need to replace the TPS or the whole trottle body. I had the same problem.
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-1
Sunday, December 20th, 2009 AT 6:01 AM
Tiny
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THe TPS could cause this type of problem. Is the engine missing? Has the check engine light come on?

Let me know. And good thinking to jennessee!

Joe
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Sunday, December 20th, 2009 AT 10:58 PM
Tiny
JENNESSEE
  • MEMBER
  • 3 POSTS
Thanks,

No the engine is not missing at all and the check engine light don't come on neither. It is not the engine, but the bad TPS sends wrong signal to the transmission to shift the next speed and this let the car shakes when accelerating. It is the same effect when you have a standard car and try to accelerate in the 3rd shift. That shaky effect is almost the same when the TPS is not working properly.
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Sunday, December 20th, 2009 AT 11:47 PM
Tiny
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  • MEMBER
  • 5 POSTS
I do not get the check engine light nor is the engine misfiring. When I keep the car in parking and press on the gas pedal, it can go all the way up to 5000 rpm without any vibrations.

Thank you for your replies.
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Monday, December 21st, 2009 AT 5:45 PM
Tiny
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  • MEMBER
  • 5 POSTS
I took it to the dealer last week and was told that I need a new transmission and will cost me $4100.

The trade in value of the car is $9000. I do not think it is worth spending $4K on a $9K car. What if the engien dies on me next month?
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Tuesday, January 12th, 2010 AT 6:27 PM
Tiny
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  • 5 POSTS
FOr gettign a second opinion, I took it to a transmission shop to check the transmission and they game my transmission a clean bill of health. Instead, they told me that the control arm bushings need to be replaced and I am going ahead with that. Hope that fixes the problem.
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Monday, January 18th, 2010 AT 4:34 PM
Tiny
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  • MEMBER
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Thank you all for your help on this site. I just wanted to circle back and give the status update.

I had to replace the lower control arm bushings and the front axles. This seems hto have fixed the shaking that I was experiencing between 50 -65 mph.

Again, this shop ran diagnostics on the transmission and did not find any error codes. Also, the transmission fluid was in good state (level and smell both).

I hope this was it and I do not have to rebuild/replace the transmission. I don't know if changing the axle will hide/supress the bigger transmission problem for some time (I am so paranoid now).
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Monday, January 25th, 2010 AT 5:13 PM
Tiny
NISSIM
  • MEMBER
  • 8 POSTS
I have a similar problem. I just bought this car last month and spent all day in the dealership and they claim it was tires problem and they put 4 brand new tires but the problem is the same. Anyone can help?
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Wednesday, December 15th, 2010 AT 1:55 PM
Tiny
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Check wheels to make sure they are not bent, alignment.

Let me know what you find.
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Wednesday, December 15th, 2010 AT 4:10 PM
Tiny
NISSIM
  • MEMBER
  • 8 POSTS
This is the second alignment in the last month. After reading all the responses on this blog I pay more attention in lower speed and the shakes are there in lower speed too ( much less but there) I also noticed that the steering wheel shakes when the car is in a stand still. I guess I'm becoming more paranoid. I go back to the dealership tomorrow and keep you posted if they find anything. So far all the repairs is on them and I find it as a great customer service.
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Thursday, December 16th, 2010 AT 3:34 AM
Tiny
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Let me know what you find.
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Friday, December 17th, 2010 AT 12:40 AM
Tiny
NISSIM
  • MEMBER
  • 8 POSTS
Another day at the dealership, they did a break job. Front and rear drums. They said they check the engine mounts and didn't find anything wrong with the car. Yesterday they admitting there were vibrations today the senior tech said its characteristic for the car. Wow, I can't believe it, I drive an Accord for the last 9 years. I guess I have to drive it like that for now. Problem unsolved.
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Friday, December 17th, 2010 AT 3:16 AM
Tiny
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That isn't the nature ot that vehicle. Something must be bent or a bearing must be lose or bad. I can't believe a dealer would tell you that avibration is normal.
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Friday, December 17th, 2010 AT 1:20 PM
Tiny
NISSIM
  • MEMBER
  • 8 POSTS
Yea, I can't believe it either. I'll take it to my old mechanic sometimes after Christmas and see what he thinks.
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Friday, December 17th, 2010 AT 4:50 PM
Tiny
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Based on our conversations, have him recheck motor mounts, trans mounts, wheel bearings.

I look forward to hear what he tells you.

I hope you have a good Christmas, even with the car problems.
Joe
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Friday, December 17th, 2010 AT 7:25 PM
Tiny
NISSIM
  • MEMBER
  • 8 POSTS
Thanks for the advise. Happy Christmas to you and your family. I'll keep you posted if anything change with the car.
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Friday, December 17th, 2010 AT 7:36 PM
Tiny
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I look forward to hearing from you.
Joe
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Sunday, December 19th, 2010 AT 12:43 AM
Tiny
NISSIM
  • MEMBER
  • 8 POSTS
Update: yesterday they install 2 new drive shafts on my car, claiming that one was bad. The car was there for 2 days. I drove it off and it is still the same. Now they saying: that's how it is! I think they lost a lot of money b/c they did all that for free. It's a shame that their mechanic don't know their job.
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Saturday, January 8th, 2011 AT 3:45 PM

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