Diagnosing Suspension Noises and Knocks
Author: k1ano
Credits: K1ano
Date: 18/6/2007
Associated Forum Post URL's ...
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Background
Suspension knocking noises have been reported by V6 owners, likely due to the hard sport suspension set-up. This article should help differentiate between genuine noises and problem noises.
CAUTION: It is essential to have your suspension in full working order. Any unusual noises coming from the suspension should be checked immediately, as the V6 is known for its sensitive handling. Suspension issues could be dangerous.
Front Suspension Setup
(fill this in)
Rear Suspension Setup
The rear suspension setup utilizes a McPherson strut arrangement. The strut top bolts to the strut tower, which is part of the bodyshell. The strut base bolts to the driven hub, and the hub is mounted to the rear subframe using three linkages:
Rear Suspension Knocking - Loose Subframe Bolts
Knocking from the rear suspension can be difficult to diagnose, but there are simple checks that can be made.
Ensure the subframe is mounted solidly to the bodyshell. If the mounting bolts loosen, knocking noises can occur when the rear wheel goes over a bump. The handling of the Vee can also be affected, and you may feel a self-steering effect from the rear of the car as you accelerate out of bends.
Here is the bolt that can loosen. You can just make out a gap between the body and the subframe in this picture:
And here’s how to tighten it to 90 NM. Undo a couple of the engine cover bolts, allowing it to drop slightly to gain access:
Author: k1ano
Credits: K1ano
Date: 18/6/2007
Associated Forum Post URL's ...
<!-- m --><a class="postlink" target="_blank" href="v6Clio.net - Login">v6Clio.net - Login</a><!-- m -->
Background
Suspension knocking noises have been reported by V6 owners, likely due to the hard sport suspension set-up. This article should help differentiate between genuine noises and problem noises.
CAUTION: It is essential to have your suspension in full working order. Any unusual noises coming from the suspension should be checked immediately, as the V6 is known for its sensitive handling. Suspension issues could be dangerous.
Front Suspension Setup
(fill this in)
Rear Suspension Setup
The rear suspension setup utilizes a McPherson strut arrangement. The strut top bolts to the strut tower, which is part of the bodyshell. The strut base bolts to the driven hub, and the hub is mounted to the rear subframe using three linkages:
- A trailing arm that bolts to the front of the subframe.
- A lower alloy 'wishbone' underneath the hub, which can be adjusted for camber.
- A tie bar to the rear of the driven hub, which can be adjusted for toe.
Rear Suspension Knocking - Loose Subframe Bolts
Knocking from the rear suspension can be difficult to diagnose, but there are simple checks that can be made.
Ensure the subframe is mounted solidly to the bodyshell. If the mounting bolts loosen, knocking noises can occur when the rear wheel goes over a bump. The handling of the Vee can also be affected, and you may feel a self-steering effect from the rear of the car as you accelerate out of bends.
Here is the bolt that can loosen. You can just make out a gap between the body and the subframe in this picture:
And here’s how to tighten it to 90 NM. Undo a couple of the engine cover bolts, allowing it to drop slightly to gain access:
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