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Old 03-10-2004   #1
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Help knocking noise from rear

hi all i have got a punto mk1 1.1cc

i am getting an intermittent knocking from rear of car passenger side

sometimes it does it driving in a straight line and sometime going round corners.

i checked exhaust but seems ok

also tried wobling roadwheel and get the knocking but seems to be from area near suspension leg but cant tell exactly

has any of you had same problem and found out what is was

any help or advise much apreciated

steve
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Old 03-10-2004   #2
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Re: Help knocking noise from rear

It could be the cable for the hanbrake rubbing in its mount. You might need to take the wheel off to get at it.
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Old 03-10-2004   #3
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Re: Help knocking noise from rear

or it could be the suspension bushes
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Old 03-10-2004   #4
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Re: Help knocking noise from rear

It will be one off 2 problems. Rear suspension bushes worn, or the trailing arm bushes worn, or both.
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Old 03-10-2004   #5
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Re: Help knocking noise from rear

yep i reckon suspension or trailing arm/bushes as fiat expert aboce said. its a common problem on mk1 puntos.
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Old 03-10-2004   #6
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Re: Help knocking noise from rear

the hadbrake cable makes a slapping sort of knock, the the others make a bang sort of knock, was front of rear sub frame bush on one of mine that did it.
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Old 03-10-2004   #7
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Re: Help knocking noise from rear

thanks for your replies all would any off the problems you mention be intermitent knock or permanent
thanks
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Old 03-10-2004   #8
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Re: Help knocking noise from rear

IF its the handbrake cable rubbing, it would stop when its wet and start in the dry. Thats what happens with mine.
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Old 03-10-2004   #9
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Re: Help knocking noise from rear

I have a smilar problem with my Mk2 Punto 1.2i. It only happens in first and second gear, I get this rattle noise at the back of the car. I've looked at the exhaust, suspension etc and can see no obvious problems.

It sounds like two bits of metal knocking against each other and causing a rattle sound.

Any ideas????
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Old 07-10-2004   #10
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Re: Help knocking noise from rear

i have checked handbrake cable seems ok

i have notice under more inspection that if i rock the car from side i do not get the nocking noise but if i open boot then bopunce car up and down from there i get the nocking sound still on passenger rear

i have also noticed i get the nocking more sometimes when braking.

i think it is something on suspension but cant for the life of me pinpoint it and it is a cosly game to replace parts at a guess.

the car has been stood for 8 month do you think it may be dampers gone as it does bottom out quite easily over slow bumps

the suspensions bushes mentioned are these the rubbers top and bottom of springs

or if anyone can post a pic pointing this part out or mail me a pic much apreciated.

stevehickey6@yahoo.co.uk
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Old 07-10-2004   #11
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Re: Help knocking noise from rear

you could take it in for a free estimate then say it too dear then do it yourself whens the mot due they should pick it up on that.
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Old 07-10-2004   #12
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Re: Help knocking noise from rear

hi its just passed mot this is what i dont understand
thanks
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Old 07-10-2004   #13
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Re: Help knocking noise from rear

jack up the corner in question, move the wheel in all directions, its more than likely gonna be the rear arm. i had mine supplied and fitted for £65 (but my neighbour worked there)
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Old 08-10-2004   #14
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Re: Help knocking noise from rear

thanks for replies all

i have jacked car up and feel no play in wheel can the subframe mounts cause this as the rubbers do look a little worn noise sounds like metal on metal
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Old 08-10-2004   #15
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Re: Help knocking noise from rear

was front of rear sub frame bush on one of mine that did it.
fiat dont sell them just a bodge repair thing that goes over them. you can get real ones from motorfactors but you need to make a tool to fit them.

here is the tool
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