knocking from rear

Discuss, ask, or get help with engine and mechanical queries in here.

Moderator: Moderators

puglover
2.0 16v
Posts: 111
Joined: Sun Apr 01, 2007 10:38 pm
Location: north yorks

knocking from rear

Post by puglover »

as it says above but now i will try to describe it..........

it happens upon sharp corners left or right and its a single knock... when it knocks the car also does a slight kick sidewards away from the corner....quite unnerving on bends you know.....
it also gives one knock as you reverse turning to the left.
the knock sounds like its coming from the off side and deffinatly from the rear...

i am thinking either the rear anti roll drop links or the other link bar (cant remember what its called)

hope someone can pinpoint this problem more am taking on holiday soon to scotland and dont want to dip into holiday funds to repair the car by too much lol but also want to make sure its safe for the kids to be in...
teamster1975
Site Admin & Mad Biker!
Posts: 6277
Joined: Sun Oct 28, 2007 8:07 pm
Location: Woking, Surrey

Re: knocking from rear

Post by teamster1975 »

Antirollbar bushes most likely, the rears were virtually gone on mine when I bought it.
1996 406 1.8LX Got a bad case of hydro lock!
1996 406 Executive 2.0 Turbo XU10J2TE No longer hangin' on in there :(
1997 Honda CB500V
2003 Volvo V40 1.8 GDi SE killed by a nutter in a beemer 5 series
2008 Mondeo 2.0 TDCi Titanium X

"Always look on the bright side of life, dedo, dedo dedodedo"
legoless
1.8 16v
Posts: 84
Joined: Wed Sep 26, 2007 12:01 am
Location: London

Re: knocking from rear

Post by legoless »

I would agree, the rear anti roll bar bushes fall apart commonly.... a quick look and if you see the rubber cracked the bushes are almost certainly knackered.
I changed mine after a thorough soaking with plus gas every other day for the week preceeding the day of repair. (advice passed on here by James)
The stud under the filling pipe that goes to the tank gets rusty and caked up. I had to undo the nut on it very slowly taking it a quarter of a turn forwards then reversing and flushing it with wd40 to clean the thread off. If I tried turn the nut off any more it would lock solid. It took an hour or so to get it off, the other 3 nuts were off in 15 mins.
There's a white plastic clip holding a bunch of pipes attached to the big rubber filler pipe which I undone to get enough clearance to get to the awkward nut mentioned above It's a bit awkward to see how it works but I would think you could cut it off and reattach it with a cable tie or 3 to stop the pipes rubbing when it comes to re-assembly.
poddack
2.0 Turbo
Posts: 382
Joined: Mon Jul 14, 2008 10:33 pm
Location: Bristol

Re: knocking from rear

Post by poddack »

I have the same problem with mine, one of the few small things that's caused it to fail an MOT, anti-roll ends are on my shopping list.
406 estate, 2.1TD, I fixed her, then part exchanged her for a Mercedes E300TD Avantgarde Estate.
Hmmmm, straight 6 goodness!
User avatar
mjb
Site Admin
Posts: 7983
Joined: Wed May 31, 2006 9:06 pm
Location: Stoke

Re: knocking from rear

Post by mjb »

Jack up the corner, grab the wheel at opposite sides and shake. Shouldn't be too hard to work out what's loose
<steve_earwig> I think this forum is more about keeping our cars going with minimal outlay than giving our cars more reason to go bang
User avatar
Welly
The moderator formally known as Welton
Posts: 15033
Joined: Tue Jan 10, 2006 12:52 pm
Location: East Midlandfordshire

Re: knocking from rear

Post by Welly »

Mine's doing this :cry: set it into a bend and the rear "moves" by itself (interesting experience).

I had an advisory last time about the rear sussy but it wasn't drop links it was something else (can't remember what and haven't been arsed to invesigate) anyway I drive like a homosexual these days to save fuel so don't do fast cornering much now :)
Cars in my care:
2021 Kia Spottage 1.6 Pez Turbo Dual Clutch Gearbox Trickery
2013 Renner Twingo - donkey work
User avatar
ianst28
2.2 16v
Posts: 241
Joined: Wed Apr 02, 2008 10:04 pm
Location: sunny wirral (who am i kidding it's always bl&^%y raining)

Re: knocking from rear

Post by ianst28 »

Welton wrote: I drive like a homosexual these days to save fuel so don't do fast cornering much now :)
:arrowu: :arrowu: :arrowu: :arrowu: :arrowu: :arrowu: :arrowu: :arrowu: :arrowu:

LMAO

same here just not admitting it quite that openly lol


BUGGER WHERE DID THE PINK WRITING COME FROM
If at first you don't succeed, skydiving is not for you !!!!!
locoboy
1.8 16v
Posts: 76
Joined: Wed Oct 31, 2007 10:58 am

Re: knocking from rear

Post by locoboy »

The knocking on mine was cuased by a worn track control arm thing.

I grabbed my wheel at 3 and 9 oclock and could hear and see the offenfine item moving.

got a pair of non genuine items off ebay for about £20 delivered.
teamster1975
Site Admin & Mad Biker!
Posts: 6277
Joined: Sun Oct 28, 2007 8:07 pm
Location: Woking, Surrey

Re: knocking from rear

Post by teamster1975 »

locoboy wrote:The knocking on mine was cuased by a worn track control arm thing.

I grabbed my wheel at 3 and 9 oclock and could hear and see the offenfine item moving.

got a pair of non genuine items off ebay for about £20 delivered.
Yep, same here; I replaced the antirollbar bushes & drop links but still had play in both rear wheels, the top links were totally f*cked.
Reminds me, I must get the rear wheel alignment checked now I've replaced those!
1996 406 1.8LX Got a bad case of hydro lock!
1996 406 Executive 2.0 Turbo XU10J2TE No longer hangin' on in there :(
1997 Honda CB500V
2003 Volvo V40 1.8 GDi SE killed by a nutter in a beemer 5 series
2008 Mondeo 2.0 TDCi Titanium X

"Always look on the bright side of life, dedo, dedo dedodedo"
User avatar
Welly
The moderator formally known as Welton
Posts: 15033
Joined: Tue Jan 10, 2006 12:52 pm
Location: East Midlandfordshire

Re: knocking from rear

Post by Welly »

teamster1975 wrote:Reminds me, I must never get round to having the rear wheel alignment checked now I've replaced those!
Fixed for accuracy :P

Oh and I'm not gay btw, not even "curious" :lol:
Cars in my care:
2021 Kia Spottage 1.6 Pez Turbo Dual Clutch Gearbox Trickery
2013 Renner Twingo - donkey work
User avatar
mjb
Site Admin
Posts: 7983
Joined: Wed May 31, 2006 9:06 pm
Location: Stoke

Re: knocking from rear

Post by mjb »

Welton wrote:I drive like a homosexual these days to save fuel so don't do fast cornering much now :)
BZZT! To save fuel you want to be taking corners without slowing down. The more speed you carry through the bend, the less you have to accelerate coming out of it. Braking is like throwing fuel out the window - it's even cheaper to accelerate hard and sneak in front of someone on a roundabout than have to stop and accelerate from a standing start :shock:
<steve_earwig> I think this forum is more about keeping our cars going with minimal outlay than giving our cars more reason to go bang
teamster1975
Site Admin & Mad Biker!
Posts: 6277
Joined: Sun Oct 28, 2007 8:07 pm
Location: Woking, Surrey

Re: knocking from rear

Post by teamster1975 »

Welton wrote:
teamster1975 wrote:Reminds me, I must never get round to having the rear wheel alignment checked now I've replaced those!
Fixed for accuracy :P
You know me too well! :oops:
Welton wrote:Oh and I'm not gay btw, not even "curious" :lol:
I'd never make an assumption about anyone I'd never met or spoken too :lol:
1996 406 1.8LX Got a bad case of hydro lock!
1996 406 Executive 2.0 Turbo XU10J2TE No longer hangin' on in there :(
1997 Honda CB500V
2003 Volvo V40 1.8 GDi SE killed by a nutter in a beemer 5 series
2008 Mondeo 2.0 TDCi Titanium X

"Always look on the bright side of life, dedo, dedo dedodedo"
User avatar
Welly
The moderator formally known as Welton
Posts: 15033
Joined: Tue Jan 10, 2006 12:52 pm
Location: East Midlandfordshire

Re: knocking from rear

Post by Welly »

supafrisk wrote:I would never think Welly is gay (even though his title for a while on here was fudge packer :mrgreen: )

married, maybe but gay? No way!! :cheesy:
Fixerd :|
Cars in my care:
2021 Kia Spottage 1.6 Pez Turbo Dual Clutch Gearbox Trickery
2013 Renner Twingo - donkey work
teamster1975
Site Admin & Mad Biker!
Posts: 6277
Joined: Sun Oct 28, 2007 8:07 pm
Location: Woking, Surrey

Re: knocking from rear

Post by teamster1975 »

Welton wrote:
supafrisk wrote:I would never think Welly is gay (even though his title for a while on here was fudge packer :mrgreen: )

married, maybe but gay? No way!! :cheesy:
Fixerd :|
Same here mate, we're all in the same boat :lol:
1996 406 1.8LX Got a bad case of hydro lock!
1996 406 Executive 2.0 Turbo XU10J2TE No longer hangin' on in there :(
1997 Honda CB500V
2003 Volvo V40 1.8 GDi SE killed by a nutter in a beemer 5 series
2008 Mondeo 2.0 TDCi Titanium X

"Always look on the bright side of life, dedo, dedo dedodedo"
User avatar
Welly
The moderator formally known as Welton
Posts: 15033
Joined: Tue Jan 10, 2006 12:52 pm
Location: East Midlandfordshire

Re: knocking from rear

Post by Welly »

Robbie Coltrane, in Cracker wrote:I enjoy Lobster Thermidor, I also enjoy blow jobs, neither of which you will get when you're married.
:|
Cars in my care:
2021 Kia Spottage 1.6 Pez Turbo Dual Clutch Gearbox Trickery
2013 Renner Twingo - donkey work
Post Reply