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+--- Thread: Annoying Knocking / Scraping Noise (/showthread.php?tid=22649)
Annoying Knocking / Scraping Noise - mspdan - 29-03-2014
Hi guys,
been really busy with 8am till 10pm shifts this week so havent had time to investigate but my car is driving me mad...
it has a knock / scrape noise when you turn it off and on and also when going round bends or over potholes (have to be quite bad).
it sounds like it is coming from underneath the handbrake area if that helps, but havent investigated yet.
i have a straight through exhaust system on the car so wondering if it is this knocking on the tunnel or maybe the rear engine mount is worn?
just any areas people could suggest to check or if anyone has had a similiar fault, its really bugging me and i have today off so its on the to do list
any help appretiated
RE: Annoying Knocking / Scraping Noise - Poodle - 29-03-2014
As you have surmised, it's most probably the exhaust knocking on the subframe or tunnel. I'd say it's more likely to br down to poor exhaust angles than knackered mounts.
RE: Annoying Knocking / Scraping Noise - mspdan - 29-03-2014
(29-03-2014, 08:30 AM)Poodle Wrote: As you have surmised, it's most probably the exhaust knocking on the subframe or tunnel. I'd say it's more likely to br down to poor exhaust angles than knackered mounts.
whats bugging me with the exhaust though is it never knocked ont eh other 306 but is on this one so unsure as to why, must be something else wrong surely?
it also rattles on tickover which the garage couldnt figure out for some reason and it did not do that on the other car either
thanks
RE: Annoying Knocking / Scraping Noise - Poodle - 29-03-2014
Odd, have you tried loosening the clamps and adjusting the mounts until it sits central?
Could be engine mounts, they're fairly easy to diagnose. Do you get knocking from the drivers side if you step on and off the accelerator quickly?
RE: Annoying Knocking / Scraping Noise - mspdan - 31-03-2014
(29-03-2014, 02:21 PM)Poodle Wrote: Odd, have you tried loosening the clamps and adjusting the mounts until it sits central?
Could be engine mounts, they're fairly easy to diagnose. Do you get knocking from the drivers side if you step on and off the accelerator quickly?
not yet, shall go back to bush first and tell them to sort there lifes out...
its mainly when you go round bends and its getting worse, although sometimes it does it when u flick the car off or like you say on and off the accelerator..
however it sounds more like its coming from under the handbrake but was going change the rear mount see if that helps
thanks
RE: Annoying Knocking / Scraping Noise - Piggy - 31-03-2014
Rekon a exhaust rubber has come off, not been fitted, or a connection has not been fitted and tightened correctly.
RE: Annoying Knocking / Scraping Noise - Poodle - 31-03-2014
Yeah, from your description that is almost certainly just a poorly fitted exhaust, should be fine with a bit of fettling.
RE: Annoying Knocking / Scraping Noise - mspdan - 31-03-2014
(31-03-2014, 06:33 PM)Poodle Wrote: Yeah, from your description that is almost certainly just a poorly fitted exhaust, should be fine with a bit of fettling.
what i thought but obviously there is no mounts with no centre pipe on...
shall go to bush tomorrow shout and get it sorted, second time they have bodged the exhaust on my cars
thanks for help guys