Car shaking under acceleration
#1
Member
Thread Starter
Join Date: Apr 2003
Location: Windsor, PA
Posts: 2,289
Likes: 0
Received 0 Likes
on
0 Posts
Car shaking under acceleration
Like the title says its shaking only under acceleration. It feels similar to when the lug nuts start to come off. It doesn't do it when cruising or under engine braking. What could cause this?
Alittle background info, on thurs day i put my stock springs back on and while dropping the susupension the left side cv axle fell out. we put it back in no problem. I checked it and it doesn't seem to be problem.
Also the problem occurred last night when i went over a bump (while turning). Its kinda of hard too explain but the turn veers off to left. I took the turn at about 50-55 and the road i was turining on is at an angle like this / ( not that exaggerated but it angles in that direction.) Right after i went over it and gave it gas it started.
i 'm trying to figure it out right now so fast replies would be a plus. Anything to check?
Alittle background info, on thurs day i put my stock springs back on and while dropping the susupension the left side cv axle fell out. we put it back in no problem. I checked it and it doesn't seem to be problem.
Also the problem occurred last night when i went over a bump (while turning). Its kinda of hard too explain but the turn veers off to left. I took the turn at about 50-55 and the road i was turining on is at an angle like this / ( not that exaggerated but it angles in that direction.) Right after i went over it and gave it gas it started.
i 'm trying to figure it out right now so fast replies would be a plus. Anything to check?
#2
space cadet
Join Date: Nov 2002
Location: Spec Shakesland
Posts: 6,091
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (Behan)
still doing it right?
are you sure nothing inside the CV joint got fucked? also did it seat properly?
i know these are elementary questions steve, just knocking the simple **** out of the way.
are you sure nothing inside the CV joint got fucked? also did it seat properly?
i know these are elementary questions steve, just knocking the simple **** out of the way.
#3
Member
Thread Starter
Join Date: Apr 2003
Location: Windsor, PA
Posts: 2,289
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (Shakes)
the car is still on jack stands so i don't know if its still doing it now. it was this morning. The CV axle is seated in there correctly, i just re- checked it. that was the first thing i checked. My first impression was that it was the axles, the shaking increases as engine rpm's increase.
One other bit of info, the engine seems fine in neutral. i reved it and the rpms climbed normally.
One other bit of info, the engine seems fine in neutral. i reved it and the rpms climbed normally.
#4
space cadet
Join Date: Nov 2002
Location: Spec Shakesland
Posts: 6,091
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (Behan)
check your motor mounts as well. it could be one of them is starting to go, so you may not see anything major. that would justify the "settling" of the rattle.
#5
Member
Thread Starter
Join Date: Apr 2003
Location: Windsor, PA
Posts: 2,289
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (Shakes)
new front and rear motor mounts, with ES inserts. The tranny mount looks fine as well as the drivers side mount.
#6
space cadet
Join Date: Nov 2002
Location: Spec Shakesland
Posts: 6,091
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (Behan)
rims are secured?
tires werent skipping were they?
anything loose in the engine bay that could have been tapping the hood?
tires werent skipping were they?
anything loose in the engine bay that could have been tapping the hood?
#7
Member
Thread Starter
Join Date: Apr 2003
Location: Windsor, PA
Posts: 2,289
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (Shakes)
rims were tight, all done with a torque stick
tires weren't skipping, the vibration is noticeable at about 3k rpms under moderate throttle.
nothing loose, it is a violent shaking of the front end and steering wheel.
tires weren't skipping, the vibration is noticeable at about 3k rpms under moderate throttle.
nothing loose, it is a violent shaking of the front end and steering wheel.
Trending Topics
#8
space cadet
Join Date: Nov 2002
Location: Spec Shakesland
Posts: 6,091
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (Behan)
is there anyway to check out the steering system? a violent shaking like that sounds like my friends sentra when the rack was going.
on her car it would pull to the side right after the shaking started
on her car it would pull to the side right after the shaking started
#9
Junior Member
Join Date: Sep 2003
Location: greenville, sc, USA
Posts: 617
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (Shakes)
with out looking at the car it is hard to say. this is usually a bad inner cv joint, whether it is in properly or not. also inspect your radius rods coming off the front cross member. make sure they are secure.
#10
Member
Thread Starter
Join Date: Apr 2003
Location: Windsor, PA
Posts: 2,289
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (junbb1)
well, i recently replaced the right radius rod. so i checked that right away. i also pulled it out and made sure it was installed correctly, which it was.
i also just jacked the car up ( with jackstands supporting it ) and let it run in gear. It appears the inner pass. cv joint is vibrating, So hopefully this is the problem. I guess i'll be buying a new cv axle
i also just jacked the car up ( with jackstands supporting it ) and let it run in gear. It appears the inner pass. cv joint is vibrating, So hopefully this is the problem. I guess i'll be buying a new cv axle
#11
Junior Member
Join Date: Sep 2003
Location: greenville, sc, USA
Posts: 617
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (Behan)
go to carquest and get an axle. they are like 50 bucks and have a lifetime warranty if you save the receipt. i run them in mine.
#13
Member
Thread Starter
Join Date: Apr 2003
Location: Windsor, PA
Posts: 2,289
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (junbb1)
Well it seems to have fixed itself ( to a certain degree).
I had a friend come look at it, we ran it on the jackstands and checked for any vibration with the cv axles. We both decided it wasn't vibrating, I may have jumped the gun wanting to find the answer . We turned the car off and checked for any excessive play on the cv axles, intermediate shaft, etc. It was still vibrating, so we decided to lower it and go for a drive so he could get an idea of what it felt like.
Well the vibration *seems* to have disappeared until 65 mph where it is alot less violent. It almost feels like a wheel weight fell off now, which one did on the side that is vibrating. So.....................?
This basically has me stumped, I'll get the wheel balanced again and see if the vibration above 65 mph goes away. If it doesn't i'll replace the cv axles.
Thanks for all the help Doug and Blake.
I had a friend come look at it, we ran it on the jackstands and checked for any vibration with the cv axles. We both decided it wasn't vibrating, I may have jumped the gun wanting to find the answer . We turned the car off and checked for any excessive play on the cv axles, intermediate shaft, etc. It was still vibrating, so we decided to lower it and go for a drive so he could get an idea of what it felt like.
Well the vibration *seems* to have disappeared until 65 mph where it is alot less violent. It almost feels like a wheel weight fell off now, which one did on the side that is vibrating. So.....................?
This basically has me stumped, I'll get the wheel balanced again and see if the vibration above 65 mph goes away. If it doesn't i'll replace the cv axles.
Thanks for all the help Doug and Blake.
#14
Ladies and gentlemen we are floating in space...
Join Date: Oct 2002
Location: Rochester, NY, USA
Posts: 5,139
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (Behan)
I've got my money on a wheel balancing taking care of it. My car used to shake pretty badly at 65-70mph...got a balancing and that was the end of it.
#15
Junior Member
Join Date: Feb 2004
Location: Milwaukee, Wi, USA
Posts: 861
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (Regal)
I have the same thing, shaking from like 60-70mph. I just put new tires and rims so I know my rims are balanced. It doesnt really bother me but if you find your problem im sure I have the same one.
#16
Member
Thread Starter
Join Date: Apr 2003
Location: Windsor, PA
Posts: 2,289
Likes: 0
Received 0 Likes
on
0 Posts
Re: Car shaking under acceleration (puddz27)
Well the vibrations are back.
It seems to come an go when there is any kind of shock to the wheel. I.E i hit a bump today and the vibration returned. I just wanted to know if that would indicate a bad cv axle or point to another problem.
I also was considering another possibility, i had an alignment done and my caster was off. i started a thread about it based on theh responses bought a replacement radius rod.
https://honda-tech.com/zerothread?id=804031
I decide to put the stock springs back on and when reinstalling the stock springs we had a problem getting the damper fork to line up. MY buddy pryed while I put the bolt through. This made me start to think that possibly the lca was bent as well as the radius rod.
So on to my question, Could the new un-bent radius rod, change my caster for the worse, which would cause the vibrating problem? When we test drove it my buddy was watching the front pass. wheel and said it appeared to be moving up and down.
Modified by Behan at 6:28 AM 4/21/2004
It seems to come an go when there is any kind of shock to the wheel. I.E i hit a bump today and the vibration returned. I just wanted to know if that would indicate a bad cv axle or point to another problem.
I also was considering another possibility, i had an alignment done and my caster was off. i started a thread about it based on theh responses bought a replacement radius rod.
https://honda-tech.com/zerothread?id=804031
I decide to put the stock springs back on and when reinstalling the stock springs we had a problem getting the damper fork to line up. MY buddy pryed while I put the bolt through. This made me start to think that possibly the lca was bent as well as the radius rod.
So on to my question, Could the new un-bent radius rod, change my caster for the worse, which would cause the vibrating problem? When we test drove it my buddy was watching the front pass. wheel and said it appeared to be moving up and down.
Modified by Behan at 6:28 AM 4/21/2004
#18
Join Date: Nov 2003
Location: Sportscar Heaven, England
Posts: 1,109
Likes: 0
Received 0 Likes
on
0 Posts
even if the LCA is bent it would not have any direct cause orway to createa vibration, the worse that could happen is thatthe suspension would justbeabitstifferandless responsivealthought he bentlca could slowly strech a radius rod, I doubt it has anything to do with it. The problem will bein one of the moving parts, you havent bent one f your rims have you ? (what with the bumps)
But I would hazard a guess the problem lies with the driveshaft and mostlikelyone of the inner joints bearings (whichever side yiou say its coming from, Thehousing itself could possibly be scored on the inside from a bad bearing tat has unseated etc).
I wouldnt go as far as to put money on my my guess yet but could you describethevibration in more detail please and how itsounds/harshness at different driving speeds and going over bumps etc.
Will
But I would hazard a guess the problem lies with the driveshaft and mostlikelyone of the inner joints bearings (whichever side yiou say its coming from, Thehousing itself could possibly be scored on the inside from a bad bearing tat has unseated etc).
I wouldnt go as far as to put money on my my guess yet but could you describethevibration in more detail please and how itsounds/harshness at different driving speeds and going over bumps etc.
Will
#19
Member
Thread Starter
Join Date: Apr 2003
Location: Windsor, PA
Posts: 2,289
Likes: 0
Received 0 Likes
on
0 Posts
Re: (OTT)
the vibration feels like my lug nuts are loose, which they arent. Its basically like a left too right motion. that increases in severity as speed increases.The vibration can be seen on the steering wheel ( wheel is actually moving left to right about 1 inch at 60 mph). Also the front end can be seen moving if you look at the a pillar/hood.
#20
Join Date: Nov 2003
Location: Sportscar Heaven, England
Posts: 1,109
Likes: 0
Received 0 Likes
on
0 Posts
Sounds like the inner CV joint, Try driving it soit does it for a couple of minutes then pull up, jack the front of the car up, then once its safely raised lightly touch (quickly though so as not to burn yourself) each inner cv housing to see if its hot or warm, If it is then theres your problem and youll just have to rebuild that driveshaft (its not as hard as ppl make out btw).
#22
Member
Thread Starter
Join Date: Apr 2003
Location: Windsor, PA
Posts: 2,289
Likes: 0
Received 0 Likes
on
0 Posts
Re: (Behan)
i put the new cv axles on last night, and no more shaking. woot!
one of the guides on the bearings was broke and needle bearings were falling out. I'm guessing that is what caused the vibration, but it was on the opposite side of where i thought the shaking was coming from.
Thanks for the help everyone.
one of the guides on the bearings was broke and needle bearings were falling out. I'm guessing that is what caused the vibration, but it was on the opposite side of where i thought the shaking was coming from.
Thanks for the help everyone.
#23
Join Date: Nov 2003
Location: Sportscar Heaven, England
Posts: 1,109
Likes: 0
Received 0 Likes
on
0 Posts
nice one, you should just clean our and save the parts from the old driveshafts like the good bearings, rubber boots, shafts themselves, etc. Then if you have any issues in the future then you can just rebuild the current ones