I've encountered a problem...my car is shaking upon acceleration, most noticeably while accelerating at low rpm, but also while on the highway. It's an '04 with 116,000 miles on it. I first thought the clutch might be slipping, but it doesn't seem like a classic case of clutch-slip. It seems worse in the even-numbered gears, but that just might be me over analyzing it. Does anyone else have any ideas or similar experience? My mechanic drove it today and was perplexed. I should have it back to him for a thorough check-up in a day or two.

 

Could be tire wear. When was the last time you changed your tires?

 

Tire balance or Alignment is off??

 

So does it only shake when you're on the gas pedal? If you're going like 80 mph and you let off the gas pedal, is it still shaking?

 

I'm thinking axles or CV joints.

 

I just had new tires put on a month ago and it only shakes while I'm on the gas. If I'm cruising at 70 mph or decelerating there's no noticeable problem , but if I hit the gas there's a whole lotta shakin. The engine sounds and feels normal and the rpms haven't changed in any way.

I'm assuming that it's something in the drivetrain at this point. I'll find out next week though...

 

When the front axles on my old CL were going out it would do exactly what you are describing.

 

I have had the same problem on my 06 since about 5000 miles. I had them look at it at around 8k and they did something with the transmission saying there was "too much play". I didn't have the car for about a week with them saying the part was in high demand. After about 1000 miles after the fix the same thing came back. I now have 20k and it is coming more pronounced. Mine is most pronounced in 2nd with a decent amount of throttle. If you are going uphill slightly you feel it even more.

I'll let you know what they fix this time.....I have an appointment this week.

 

Update: My mechanic checked the wheels, bearings, tires - no problems. Drained the trans fluid and found a lot of fine metal particles - not good, but I don't think that indicates the problem.

He also pulled apart the axle and said there was a little play in it, but it didn't seem like much. However, when he gave it back the problem changed significantly. Now it doesn't shudder the way it did in 2nd and 3rd gear at low rpm. It shakes like crazy in any gear between 55 - 65 MPH now.

I just brought it back to him to have the half shafts remanufactured after my educated guessing and reading about other's similar experiences on here. I'll keep ya posted...

 

You could've gotten some brand new ones through excelerate for the price of the remained ones I bet. I got the Stage 0 set through him. Solved this issue that you are describing. Can't wait for Acura to not admit they don't have an issue with this either.

 

How much? New ones from Acura are $610 each. I'm spending $380 each.

 

$610 each??? Holy shit.

 

Talk to him, but I'm pretty sure the number was something around the $350 shipped for both sides. I looked up OEM ones and luckily JTso found the place that supplies the axles and Excelerate hooked me up with a great price.

EDIT: I did the work myself...

https://acurazine.com/forums/showthread.php?t=40227

 

Its really strange... Right when I got to about 70,000 miles I started noticing the shake, just like yours. I'm only at 70,500 right now, hopefully they won't do anything drastic so I can change them when I go home in a month.

 

We have the Driveshaft Shop Stage 0 axles for $290 shipped.

Acura TSX Level 0 axles
Here is the new set of Acura TSX level 0 axles, although not designed as a drag racing it is superior to the poorly made factory axles. The axle come with 4130 chromoly bar, single arc design outer c.v. and oversized tripod inner c.v. these axles are in stock and ready to ship. price is for both axles.These axles are not recomended for racing so sorry no warrenty on this set of axles.Price if for both left and right axles

 

Damn! My mechanic has already sent mine out to be fixed. At least I know who to turn to when they go bad again!

 

With 116k miles on it, I don't have a feeling the car will be around.

To everyone else, I'm still very pleased with these axles and I haven't had any issues with them at all. I do not have anymore shakes at that magic speed mentioned in the thread I linked to. These axles were a perfect match.

 

I road around on mine for a few months (very minor shake) and then a few weeks after I had my Fidanza flywheel and ACT clutch put in. It will get worse, but I just started taking it easy through the point where they would shake.

 

Yea its still relatively minor, I had my axles go bad in my old CL. lol I know what its like when they go out now, by the time I scraped up enough money to get them replaced they thumped so bad I can't even explain and when the guy jacked it up they fell off


Excelerate, I'll send you a PM soon.

 

Update - I ended up ordering the driveshaftshop.com axles from excelerate. He offers a great price (better than buying them direct from the manufacturer), but I think they're pretty cheap and come without a warranty. I looked them over when they came in, and they looked a little sloppy. I had them installed and the problem didn't go away - it just changed. It's much better than it was - the car only shakes a little between 20-25 MPH, but it's still not right.

For now, especially since I now have to replace the a/c, I'm just going to live with it. It just sucks to have spent several hundred dollars and still have this problem.

 

Yours looked sloppy? Like how? I don't have any shakes at all and I do believe they come with a warranty, but it doesn't cover breakage (more than likely due to someone putting the Level 0 on a performance application). But if they aren't right, you should get them replaced. The only thing I noticed it they didn't have a shaft balancer on them and wonder if that is where your low speed shake is coming from.

 

I had the same problems with the shaking and got raped by the service dept, $843.00 to replace the left axel. They tried to say that it was my right one at first and that I might have to replace both. I told them it was the left side in the beginning, but the tech said it was the right side. I was right all along, they ended up ripping the boot on the right side and repaced it for free since there was no rip when I brought it in. I know that Moda_way put out a DIY on this, now I wish that I could've done this my self and save the money!!

 

I can't really describe what I saw in technical terms, but the end of one of the shafts looked like it had been dropped or was just machined poorly. I had waited a month for them to arrive so I just brought them in to my mechanic and had them put in regardless. I may call driveshaft shop to see if they'll do anything but it says clearly (even on the axle itself) that there is no warranty on those axles. If not I'll just live with the vibrating till the car dies, which may be soon at the rate it's going.

 

Yeah, now that they are installed, it is going to be pretty tough to prove anything. Sorry to hear this man. Mine arrived in fantastic condition and I even took pics of them side-by-side with the OEMs. 100% match minus the harmonic balancer on the driver side shaft.

 

I had the same problem .. @ 80kph.... 100kph.. and 120kph ended up replacing rightside axle and half shaft to the tune of $900+ for both.. problem solved.. (bought oem axles.. ).

 

Update- I brought the car in for the 60,000 mile service. I asked our mechanic if he could replace the axles for me. He said I should wait until he rotated and balanced the tires first with new lugs, I had some aftermarket locks that were quite a bit larger then stock. I just got the car back and the shake seems to have gone. I tried accelerating uphill at WOT from 55-65 and no discernible shake , I'll see if it makes any difference later when it cools off (its 107 right now).

Plus the car feels new again, the butt dyno says that the car is much happier with the new airfilter; and the 6 speed feels buttery smooth again . The service was only $209 total too