Ok now that i have my original name back i can back into the forum Yay ..... Ok problem(s)
2011 civic coupe EX AT 70K owned it since 35K.
I travel from FL to NY many times a year and this last trip i started to notice a shake and a pull to the right, so i went in to have the wheels balance, the first shop told me that they were balanced, So i figured that was a lie.
So i went to where i got the tires installed, They said the same thing... but told me that they where going to rotate them to see if then shake moved around..
well no... so i went back and left the car, when i went back to get it, it had 4 brand new tires on it ( same ones but new).
I thought sweet must have been bad tires... NOPE still doing the same thing..
So i went at it myself....
The car feels like it is hopping in the back at 55 and switchs to the front as you go faster...
I have so far replaced everything listed below with OEM Dealer parts
Axles 2
control arms 2
new rotors in front and new pads all around
1 new caliper
4 HFP17 rims and DWS tires 215/45/17 W
I have had 7 alignments

I have checked engine mounts shocks front and rear control arm bushings... everything looks perfect..
I just dont know what else to do.. I have been a Honda Tech for a long time and myself nore anyone in the shop can come up with what the issue is...
Please anyone with any suggestion please comment, i dont care if they sound dumb...

 

Check the struts, especially the top mount area.

 

I was reading about that... Only thing is, As im sure you know, I have to pull the whole assy out to check and then another alignment.
I will be getting another set of new tires this week, The Conti have flat spots on them again!!!
Does anyone live in the FL area ever have any issues with tires like this? Im on my now8th set...

 

You could have mentioned that before. Being a tech, you should know that flat spots on tires are indicative of bad shocks/struts.

 

Bad suspension causes cupping , But i did pull the rears and did inspect the fronts....The front , again have to be pulled to inspect closer, but i did not see an fluid leaks and the bounce test.... they past LoL...
The car doesnt bounce

 

Bad suspension can cause several different wear patterns on the tires.

What kind of flat spots? Repeated around the tire (like bad suspension)? Or a flat spot that runs all the way around the tire (as in bad camber or toe)? Are the flat spots on all the tires or just the front?

For the "bounce" test, when you push on the corner of the car it should go down, come up then settle. Any deviation from this is bad suspension. Too weak and too hard shocks can both cause excessive wear on the tires.

 

The tires have 1 spot on each that are flat... Like as if it was sitting for a long time and never moved, This set of tires have about 300 miles on them and are apx 5 days old.
When i push the car down at the corner it goes down and comes up, NO bounce, I pulled the rear shocks out and compressed them by had and they cam back you with NO gurggling or stops...

 

A tire with a W speed rating will wear way faster than a tire with a speed rating of R or below. Racing and sport tires can develop flat spots from sitting. Try a tire with a lower speed rating.

 

Give your sway bar links a once over it's possible those have gone bad.

 

Well right now i have given it to the shop, I have a major back issue and it started acting up.. So im dont with for now...
I am having an alignment and 4 new tires put on... I also told them to give the car a good looking over.... This place where my car is at i trust.. which is a first, but i will report back when and if they figure it out..