| fastiva vibration - Click HERE for Original Thread |
| sparkycivic |
I just did a transmission swap to replace the toasted crapamatic that was in the car when i bought it. now when i am idling in gear, the entire car vibrates, as it does it certain other rpm's too. it seems to drive just fantastic, but i am afraid that i have done something wrong bolting up the torque converter somehow. Anyone got any ideas what I may have done wrong? I was pretty sure that the TC was centered by it's own little knob in the centre that fits the flywheel.
Auke |
|
|
| 2ndgenlude |
| my car does it too, but only in gear, at lets say a light. but if im idling in park its fine. just in drive it vibrates the car. |
|
|
| 92_WhItE_H23 |
| tlyer thats a very common prelude problem... mine does it too and so does 90% of the ludes on HPOA. |
|
|
| Xx D-MAN xX |
I'm pretty sure my festiva vibrates when at idle. Could be the large fart can exhaust I got on it, hahaha.
I also get a wicked virbration when I get up to the 110km/hr mark. It doesn't do it before or after 110km/hr. I've thought it might be warped brake rotors but why does it only do it at 110km/hr... |
|
|
| Markgase2000 |
| You could simply have dirt in your wheels. |
|
|
| Xx D-MAN xX |
quote:
Originally posted by Markgase2000
You could simply have dirt in your wheels.
I don't think that is the case...
I had my rims replaced since they were bent and I also had my front axles replaced. Still, I get that pesky vibration at 110km/hr, weird... |
|
|
| Markgase2000 |
I dont mean to sound like a festiva "hater" but those lil cars werent known for comfort at high speeds. Anything makes them vibrate they are only 1.4 meters long and built like a box. Like I said Im not a hater of festivas but every one I talked to about them lately says thats normal.
I am actually looking to trade my tempo for a festiva nothin beats 50mpg and they are the best for stereo aplications IMO. Im serious I want a festiva for a full mod job they kick ass just ask Jay Lenno he brags about his lil festiva rocket box. |
|
|
| qualthar |
| My brother had a similar problem in his old Accord, you could try changing the transmission oil, probably to Redline. I don'tknow if you'd want to put that much money into the car, it's pretty pricey oil :dunno: |
|
|
| sparkycivic |
| just how bad is that redline stuff to buy? |
|
|
| Markgase2000 |
| I think I saw that for 10-12 bucks a bottle/quart. |
|
|
| Xx D-MAN xX |
We'll, the vibration that I was experiencing has gotten worse. It has become more violent at the 100-110km/hr mark and it almost throws my car from side to side. The vibration seems to be front end related and vibrate through the steering wheel.
So, Im not sure what the source is. It could be loose lug nuts, low tire pressure, bent rim, warped brake rotor, bushings, engine mount, cv joint, control arms, axles, tie-rods, or just something loose or ready to break.
I'll hit up the easy stuff but I'm unsure what is causing this. The car is almost scary to drive at highway speeds and I have to drive it from fort mcmurray to edmonton in 2 weeks... |
|
|
| 2ndgenlude |
| my old prelude did that. does it stop when you clutch in and coast? mine didn't as bad. if so its bal-joints and tierod ends. maybe even bushings |
|
|
| sparkycivic |
i found out what mine was.. so stupid. the tranny drags the engine so much whel idling in gear that the motor twists wayy forward and the exhaust vibrates against the frame. im gonna tweak the front tranny mount and see if i can get the motor to not twist so much under it's own massive torque.
d-man
vibration while driving... bad!!! you're looking at like wheel bearings, driveaxles, and defective tires now. I wonder if maybe you lost that little rubber vibration damper thingy off your passenger side driveshaft? |
|
|
| ae1969 |
quote:
Originally posted by sparkycivic
i found out what mine was.. so stupid. the tranny drags the engine so much whel idling in gear that the motor twists wayy forward and the exhaust vibrates against the frame. im gonna tweak the front tranny mount and see if i can get the motor to not twist so much under it's own massive torque.
d-man
vibration while driving... bad!!! you're looking at like wheel bearings, driveaxles, and defective tires now. I wonder if maybe you lost that little rubber vibration damper thingy off your passenger side driveshaft?
The mount has probably collapsed.......... check and replace. |
|
|
| Xx D-MAN xX |
quote:
Originally posted by ae1969
The mount has probably collapsed.......... check and replace.
Which mount are you referring too? The tranny or engine?
Where is the transmission mount located?
If I slow down or speed up, the vibration isn't as bad or non existant.
It should be drive axles since they are fairly new. Tires are okay so it could be a wheel bearing. Would a defective wheel bearing make almost a popping noise? How can you tell if the wheel bearing is done?
|
|
|
| ae1969 |
That reply was for SParky.
...........
For your problem
Raise the front end...
- Grab the tire and check for play (grab top and bottom.......and then side to side). You should have no play.
If you rule that out then ball joints should be good........and you wont leave your wheel on the ground. :D
- Check for play on the steering wheel u-joints. Raise the car and see if you get play...... hold the steering shafts at the connection points.
- bad bearings/ axles would give you noise/grinding/knocking but try and move the CV-joints to see if you get movement. They should be solid. |
|
|
| sparkycivic |
i get a "thud" when I accelerate hard (from a stop), so I am almost certain that the tranny is contacting the cradle.
festivas have only 3 mounts. one through the timing belt cover, the other two are attached to the front and back of the transmission, then to a cradle that attached to the car at the front crossmember, and under the firewall. The back one is a square rubber thing with a bolt in the top and another bolt in the bottom holding the cradle.
the front mount is a spherical one, which also is fixed to the cradle, and the cradle is attached to the car with two bolts at the front and two at the back, also through rubber grommets. that's a lot of rubber :(
i think i did something wrong to my front spherical mount when i changed my tranny, so now the motor can rotate forward a lot, and contact the cradle sometimes. I looked and the bolt is in and tight, but of course i gotta really get under there and get closer.
i home this might help you find that bugger vibration. |
|
|
| Xx D-MAN xX |
Okay, finally had a chance to check out the car last night.
- I made sure all the upper strut bolts were tight. They were...
- I raised the front end, grabbed the tire and checked for play ( top and bottom... and then side to side). I had no play...
- I raised the front end and held the steering shafts at the connection points. There didn't seem to be any abnormal play...
- I inspected the CV joints. The boots are intact which would leave me to believe that the CV joints are okay.
- I inspected the front tires, checked the tire pressure, re-mounted the tires and tightened the lug nuts.
The one thing that I am noticing now is there is a faint knocking noise. It doesn't seem to be constant but rather irregular. The vibration on the highway at approximately 100-110km/hr is still present and violent... |
|
|
| sparkycivic |
| gotta be the balancing fo the tires. does it look like any of the wheels are missing a balancing weight? |
|
|
| Xx D-MAN xX |
I'm not sure an unbalanced wheel would make the knocking noise I'm hearing.
However, it could be the cause of the vibration but why only at 100-110km/hr. Why wouldn't I notice the vibration at lower or higher speeds :dunno: |
|
|
| sparkycivic |
that depends on the combination of spring/damper, and weight of the wheel, and it's diameter. kind of like tuning a sub box to a specific frequency... it is resonant at a certain range because of it's characteristics, so wheels out of balance behave the same way. it fucked with my head for quite a while when I lost some sticky weights from my civic before using a power wash wand on the inside. ti only did it between 90 and 115 km/h, so I just have to make sure i drove outside of that range. it shook the steering wheel and everything.
Try and explain the "knocking" again in different words - it didn't do much for me the first time :dunno: |
|
|
| Xx D-MAN xX |
| Well, I'm driving it back from Fort McMurray tomorrow and it's going to midas saturday morning. I'll let them figure it out. Hopefully, it's something as simple as a wheel out of balance... |
|
|
| Xx D-MAN xX |
We'll, we found quite a few things that were the cause of the violent vibration I was experiencing. The passenger side tire had a flat spot, the rim was bent and the tire was unbalanced.
So, with the replacement of the rear struts, a new tire, and all 4 wheels re-balanced, the vibration is nearly gone.
I also have a broken rear spring. sparkycivic, any chance you have a spare set of rear springs kicking around? |
|
|
| Markgase2000 |
| Hey if this car is driving you nuts sell it to me :) what kind of mpg you getting? |
|
|
| Xx D-MAN xX |
It's not driving me nuts. The car has been pretty good to me over the past couple of years.
For a car that is 15 years old, it's actually in pretty good shape. The engine runs strong and have had no problems with the tranny. Everything that has gone wrong has been either suspension or rims/tires.
I think I'll keep it for a while longer since it owes me nothing...
Oh, as for MPG, I'll drive from Edmonton to Fort McMurray at 120km/hr and I'll use about 3/4 of a tank of gas. It only takes about $25 to fill it up... |
|
|
| sparkycivic |
| mine's still for sale. i got my auto tranny all figured out. drives like a champ again, cept for the stupid mount shaking things a little. gonna replace that with one from pick n pull next weekend maybe. I can get a springs from there for you darcy, if you dont' wanna get dirty. |
|
|
|
|
|
