Rattling noise

Dean1985 · Jun 21st, 2012, 22:46

For the last month I've had a rattling noise which has progressively got worse. If I accelerate upto 70mph and release acceleration there is a really bad rattle noise the moment deceleration starts, if I pop cruise on at 65-70 mph and it rattles slightly then settles at a constant speed, the moment I flick cruise off the noise returns. ARB bushes and droplinks are all good as i checked these.

Any ideas on where I check next?

Cheers Dean

Darlo 1 · Jun 21st, 2012, 23:10

Wastegate actuator rod/linkage thingy on the turbo will rattle on deacceleration if it is worn.

stevo48 · Jun 21st, 2012, 23:14

Exhaust heat shield loose??

gatos · Jun 22nd, 2012, 00:34

Is it a metallic rattle or what? A recording of it would be great

Dean1985 · Jun 22nd, 2012, 11:08

I originally thought it was the nut on the worn stud I had but that's sorted (thanks again Alex) now. You can feel a slight vibration through the resting foot space which would eliminate the first 2 suggestions. Its not a metalic sound but more of a rumbling rattle if that makes sense. I'll try get a recording when back at work tomorrow but it may be hard to hear.

Thanks for the suggestions guys

Dean1985 · Jun 24th, 2012, 14:17

Got a recording but tbh the quality is pants and you can't really hear it. It sounds like the drop links have gone when going over uneven surfaces, so unless I ain't checked the drop link properly then im lost.

neil1983 · Jun 24th, 2012, 16:23

I've got a similar rattle on mine, mine is the wastegate actuator rod, I can confirm this as I have help the rod while a mate rev'd the engine and the rattle stopped.

I've been told that I need to adjust the rod, which I can do but I've been advised to fit a boost gauge first which I am going to do.

Dean1985 · Jun 24th, 2012, 17:19

Quote:

Originally Posted by neil1983

I've got a similar rattle on mine, mine is the wastegate actuator rod, I can confirm this as I have help the rod while a mate rev'd the engine and the rattle stopped.

I've been told that I need to adjust the rod, which I can do but I've been advised to fit a boost gauge first which I am going to do.

unfortunately for me it only happens when the car is in motion

Dean1985 · Jun 27th, 2012, 16:52

After reading a post by 960kg about squeezing the cv joint boot I gave it a quick go this morning before work and the rattle has greatly reduced , so to my next question, is it as simple as removing the clips around each end of the boot, greasing the joint up and putting it back together? Thought this would be worth a shot first.

Dean1985 · Jul 19th, 2012, 21:27

The squeezing of the boot must have been coincidence as I still have the noise but still not as bad, however when I now turn right I get a 'CLONK' then all is quiet again. It literally is one clonk then nothing until the next right turn. Would this be pointing to the lower ball joint in the wish bone? it is coming from the O/S.

Jun 21st, 2012, 22:46	#1
Dean1985 Master Member Last Online: Jun 4th, 2021 20:51 Join Date: Aug 2009 Location: Norwich	Rattling noise For the last month I've had a rattling noise which has progressively got worse. If I accelerate upto 70mph and release acceleration there is a really bad rattle noise the moment deceleration starts, if I pop cruise on at 65-70 mph and it rattles slightly then settles at a constant speed, the moment I flick cruise off the noise returns. ARB bushes and droplinks are all good as i checked these. Any ideas on where I check next? Cheers Dean __________________ 2001 V40 T4 S Auto on 177k 98 V40 T4 SE auto now retired @ 176k.

Jun 21st, 2012, 23:10	#2
Darlo 1 Lunatic. Last Online: Jun 6th, 2024 22:59 Join Date: Dec 2006 Location: staffordshire	Wastegate actuator rod/linkage thingy on the turbo will rattle on deacceleration if it is worn. __________________ V40 1.9D 2004 620 miles to the tankful. 235000 miles on clock. Now sold, S60 D5 2004. I vape therefore I am.

Jun 22nd, 2012, 00:34	#4
gatos Premier Member Last Online: Nov 15th, 2022 21:34 Join Date: Apr 2010 Location: London / Essex	Is it a metallic rattle or what? A recording of it would be great __________________ Current car: 2002 S40 1.9D, 1992 240SE Nullius in Verba

Jun 22nd, 2012, 11:08	#5
Dean1985 Master Member Last Online: Jun 4th, 2021 20:51 Join Date: Aug 2009 Location: Norwich	I originally thought it was the nut on the worn stud I had but that's sorted (thanks again Alex) now. You can feel a slight vibration through the resting foot space which would eliminate the first 2 suggestions. Its not a metalic sound but more of a rumbling rattle if that makes sense. I'll try get a recording when back at work tomorrow but it may be hard to hear. Thanks for the suggestions guys __________________ 2001 V40 T4 S Auto on 177k 98 V40 T4 SE auto now retired @ 176k.

Jun 24th, 2012, 14:17	#6
Dean1985 Master Member Last Online: Jun 4th, 2021 20:51 Join Date: Aug 2009 Location: Norwich	Got a recording but tbh the quality is pants and you can't really hear it. It sounds like the drop links have gone when going over uneven surfaces, so unless I ain't checked the drop link properly then im lost. __________________ 2001 V40 T4 S Auto on 177k 98 V40 T4 SE auto now retired @ 176k.

Jun 21st, 2012, 23:14	#3
stevo48 Premier Member Last Online: Jul 9th, 2020 20:08 Join Date: Dec 2007 Location: Halifax West yorkshire	Exhaust heat shield loose??

Jun 24th, 2012, 16:23	#7
neil1983 Member Last Online: Nov 28th, 2012 12:46 Join Date: Nov 2008 Location: Lincolnshire	I've got a similar rattle on mine, mine is the wastegate actuator rod, I can confirm this as I have help the rod while a mate rev'd the engine and the rattle stopped. I've been told that I need to adjust the rod, which I can do but I've been advised to fit a boost gauge first which I am going to do. __________________ Autumn Gold Volvo S40 2ltr Turbo

Jun 27th, 2012, 16:52	#9
Dean1985 Master Member Last Online: Jun 4th, 2021 20:51 Join Date: Aug 2009 Location: Norwich	After reading a post by 960kg about squeezing the cv joint boot I gave it a quick go this morning before work and the rattle has greatly reduced , so to my next question, is it as simple as removing the clips around each end of the boot, greasing the joint up and putting it back together? Thought this would be worth a shot first. __________________ 2001 V40 T4 S Auto on 177k 98 V40 T4 SE auto now retired @ 176k.

Jul 19th, 2012, 21:27	#10
Dean1985 Master Member Last Online: Jun 4th, 2021 20:51 Join Date: Aug 2009 Location: Norwich	The squeezing of the boot must have been coincidence as I still have the noise but still not as bad, however when I now turn right I get a 'CLONK' then all is quiet again. It literally is one clonk then nothing until the next right turn. Would this be pointing to the lower ball joint in the wish bone? it is coming from the O/S. __________________ 2001 V40 T4 S Auto on 177k 98 V40 T4 SE auto now retired @ 176k.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)