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Vibration When Driving Under Load Mk1 Focus 1.6


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#1 good old reliable

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Posted 12 November 2012 - 09:46 PM

Hi newbie here
got a problem with the old gal!
when under acceleration 45mph+ with car load the whole car seems to vibrate then immediately stops when ease off the throttle,
i have been told this could be a drive shaft, drive shaft bearing, cv joints disc warped etc.
I have changed discs pads.

this only happens when under load!!
its not really bad but very irritating and embarrassing when you have a car full, you can feel it through the whole car.
any idea's would be helpful.
cheers

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#2 good old reliable

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Posted 13 January 2013 - 10:01 AM

sorry to bring this up again but had the drive o/s complete drive shaft changed today and the problem is still there, and suggestion please?
Thanks

#3 stef123

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Posted 13 January 2013 - 10:32 AM

Sorry you never got a reply on this,

If it stops when you let off the accelerator, i would suggest the problem doesn't lie with something which rotates or moves when the car is in motion.
Have you inspected the engine mounts?

#4 martyntdci

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Posted 13 January 2013 - 11:40 AM

i sencond checking the mounts..... had the same problem a few years ago on my sierra 4*4, ..... i thought it was my prop shaft as it happened after wheel spinning (showing off) turned out to b engine mounts

Discs warped = wobble on steering and on the pedal(under braking)
cv joint = as far as im aware click (knock) on full lock either way
drive shaft = only ever prob i came across is car pops out of gear, and now and again a clunk noise

there could me more to add....

#5 good old reliable

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Posted 13 January 2013 - 06:00 PM

Thanks guys
yes it does stop when you let off the throttle
i thought being when under load it would put more torque on the drive train therefore if anything out, it would make it vibrate more.
this happens when in straight line so cv joints ok no click when on lock either.
changed pads discs...
no wobble on steering at any speed
had new tyres on balanced
tracking checked
sweet when throttle off or coasting, only happens when accelerating in 4/5th gear and over 45mph up to about 70mph.
what you think? still think engine mount if so, the question is which one?

#6 stef123

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Posted 13 January 2013 - 08:49 PM

I'm still with engine mount(s)

I would check them all for signs of wear or damage, then try to move the engine and see if any of them move easily. You will get a little movement but it should be excessive

#7 artscot79

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Posted 14 January 2013 - 01:26 AM

Gearbox mount also

#8 good old reliable

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Posted 14 January 2013 - 07:58 PM

ok, i will see what i can do, the engine feels solid but i don't suppose you can see the mount very well until you remove it. just to add another word, it feels like the whole car is shimmering, and if you have a loose piece of clothing on you can see it shimmering . i dont get any vibration when on tick over either.

#9 bt_cav

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Posted 15 January 2013 - 11:41 AM

when was the mot'd and serviced last?
also how and when did this start?
How many miles has she done?

just tring to get an idea what condition the engine is in.

#10 Lenny

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Posted 15 January 2013 - 12:02 PM

Hi newbie here
got a problem with the old gal!
when under acceleration 45mph+ with car load the whole car seems to vibrate then immediately stops when ease off the throttle,
i have been told this could be a drive shaft, drive shaft bearing, cv joints disc warped etc.
I have changed discs pads.

this only happens when under load!!
its not really bad but very irritating and embarrassing when you have a car full, you can feel it through the whole car.
any idea's would be helpful.
cheers

Id put 5 pounds bet on the idea that you have a buckle in one of yout alloys mate.
Full load causes tyre squat (side wall tyre buldge) putting the circumference of the alloy closer to the ground thus causing the bump de bump sensation on driving. And would get worse at speed.

#11 stef123

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Posted 15 January 2013 - 01:12 PM

Id put 5 pounds bet on the idea that you have a buckle in one of yout alloys mate.
Full load causes tyre squat (side wall tyre buldge) putting the circumference of the alloy closer to the ground thus causing the bump de bump sensation on driving. And would get worse at speed.


I see where your coming from Lenny as this would be more noticeable at speed but wouldn't be affected by letting off the accelerator

#12 good old reliable

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Posted 15 January 2013 - 09:37 PM

to answer your questions...
when was the mot'd and serviced last? mot december 2012 had new rear spring on as was broken. thats the first time have had anything done, as saled through each time. serviced in may 2012
also how and when did this start? started about 2 years ago and slowly getting worse
How many miles has she done? 83,000 steady miles
bit of history..
i have had the car since 2001 with 10,000 miles on the clock
i have had numerous rear wheel bearings gear box fixed about 5 years ago may be longer after i accidently slammed it in reverse with no clutch (bad mood)had a couple of cogs changed.
had clutch changed twice (when gearbox done)cause had judder and it stunk, (cheap clutch i think) so decided to have proper ford clutch in that cured that. cheaky git tried to blame my driving!
got k&n panel filter in original box and miltek cat back on. but i am no boy racer (too old for that now) just wanted it sound nice and i wouldn't have to pay for another exhaust, lol as i knew i was keeping the car for a while.
few cosmetics and thats about it.
only really started noticing it when i go on holiday, 5 in car towing trailer, which isn't very often. but now you can feel it with just 4 people in and no trailer, only when 45+ accelerating slightly mainly in 5th. just annoying really when i know every one can feel it.

#13 bt_cav

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Posted 16 January 2013 - 10:11 AM

Have you checked for any error codes?

#14 good old reliable

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Posted 17 January 2013 - 08:00 PM

not yet?

#15 bt_cav

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Posted 21 January 2013 - 11:11 AM

hey mate, hows the car doing? Any change?

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