I have an LsVTEC and through the lower rps range it runs rough, like it conducts vibration through the car.

High rpm range seems ok, just cruising is fine...

But when I am going up a hill or something, it just seems to start vibtrating.

any ideas?

 

what RPM are you at? Do you have stock pistons/milled head?

 

between 2K and 4K is when is shudders...
kinda like when your front wheels are outa balance feeling.

I have stock pistons and the head has not been milled

 

anyone?

 

mounts?

 

could be mounts. I had a problem with my integra GSR at 6 to 7 rpm i would get a vibration. It was the two lower mounts were loose.

 

Im thinking more on mounts. But also how fast do you go when this usually happens? Does it get worse the faster you go? Could be infact that your wheels are unbalanced, or balanced incorrectly.

 

if feels like the wheels are unbalanced, but it is independent of car speed, and DEPENDENT on engine speed.

I have urethane inserts on the motor, so I'm not leaning toward the mount side....

would too much fuel do this? I just had a new rom put in....but if i remember, it started this trend slightly before i put in the rom.

cheap gas makes it worse! detonantion?

 

A bad spark plug or plug wires can cause this problem as well if the car's experiencing a slight miss. Check them all out or swap them for some good ones and see if it stops. If not check out your distributor cap and rotor etc.

Because you said that when the car is under load when it occurs, that's what tipped me off. If it turns out to not be electrical related, try checking your cv joints/axles for any problems.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brookliner7 &raquo;</TD></TR><TR><TD CLASS="quote">if feels like the wheels are unbalanced, but it is independent of car speed, and DEPENDENT on engine speed.

I have urethane inserts on the motor, so I'm not leaning toward the mount side....

would too much fuel do this? I just had a new rom put in....but if i remember, it started this trend slightly before i put in the rom.

cheap gas makes it worse! detonantion? </TD></TR></TABLE>

Urethane mounts will conduct the low frequency vibration more and then not so much high once it revs up. Downshift that shnapple.

 

kool, i'll shop for some new plugs, these ones are old, prolly two years!


cap and rotor are a month old BTW

 

put some platinum2's on it, still runs the same.

could the coil cause this....kinda feels like it's not running on all the cylinders when i get on it.

 

What about your plug wires?

 

hahaha you said torque when talking about a honda.

hahahaha


i would check mounts, plugs, and wires. from there it could be ignition or timing.


remember, always check the little stuff first

 

yeah, no ksh*t huh? torkless!!!

I'll change out the plug wires, they are old NGK's....had em for a couple years.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brookliner7 &raquo;</TD></TR><TR><TD CLASS="quote">

But when I am going up a hill or something, it just seems to start vibtrating.

any ideas?

</TD></TR></TABLE>

are you sure your in the right gear when going up a hill?? cause i know if i try to climb one steep hill in 5th....she shakes like a *****.....haha....

 

lol!


yeah, i down shift through the gears, hesistation through 4k or so....

 

aw i see....have you tried sea foaming your engine??.....it does great wonders....smoothes out revs and your idle...at least thats what i noticed in mine

 

Could be your Ignition coils since it does it when its under heavy load

 

I replaced the coil, and the car had NO spark.
Put my old coil back in, car started right up.

Tested resistance, measured over 14 ohms at the primary.
complete weaksauce.
someone needs to be fired at their QC dept.

returned itand waitin' for another.

 

got a new working coil, didn't change anything.

hmmm....somthing mechanical, in the drivetrain somewhere?

 

check the valve lash and timing maybe

 

Did you change the plug wires yet?

 

noo....
haven't done plug wires yet.
I know I know, I'll get some today.

 

measured resistance of my NGK wires, they are within spec. Just to be sure, tried a new set of plug wires.

No difference.

Getting the timing checked today.

If the timing is on, then I'm guessing something in the drive train. Any ideas? end play in the drive shafts?