Really need your help oppo

"Twingo Tamer - About to descend into project car hell." (oppisitelock)
09/01/2015 at 10:27 • Filed to: None

We had a knock on our family wagon, we assumed it was a bad ball joint but instead of being fixed, it’s getting worse. The worst part is I don’t know what’s wrong.

When pulling away there is huge vibration and a hell of a knock when you bring the clutch in no matter how gentle and smooth you are. Below 3000rpm in any gear there’s vibration too. The clutch doesn’t slip at all.

My only idea is failure of the dual mass flywheel, but I really hope I’m wrong.

Info on car:

2006 Renault Laguna Estate 1.9 turbo diesel.

91k miles.

Ruled out so far:

Suspension issues, motor mounts, driveshafts/CV joints, engine issues.

Thanks guys and gals.

DISCUSSION (16)

SidewaysOnDirt still misses Bowie > Twingo Tamer - About to descend into project car hell.
09/01/2015 at 10:34

Flywheel off balance? If it’s balanced by weights and you lost one, I could see that, but I’ve also heard that you don’t need to really worry about flywheel balance for most applications.

ceanderson920 > Twingo Tamer - About to descend into project car hell.
09/01/2015 at 10:40

You better check the Flux Capacitor, they tend to vibrate when they are wearing out.

AMGtech - now with more recalls! > Twingo Tamer - About to descend into project car hell.
09/01/2015 at 10:42

I don’t know anything about crazy French cars so I don’t even want to hazard a guess. But I think your best bet would be to get it in the air and duplicate the noise with someone underneath it trying to pinpoint location.

You said you ruled out “suspension issues”, but does that include control arm bushings? They’re often overlooked...

Twingo Tamer - About to descend into project car hell. > SidewaysOnDirt still misses Bowie
09/01/2015 at 10:45

It has a complex dual mass flywheel that can get damaged which is what I think it is right now. So yeah could be flywheel imbalance.

Twingo Tamer - About to descend into project car hell. > ceanderson920
09/01/2015 at 10:46

It's hitting 88 and taking me a few weeks into the future to play Forza 6 early just fine though.

Twingo Tamer - About to descend into project car hell. > AMGtech - now with more recalls!
09/01/2015 at 10:48

Yeah checked all of the bushings. Been under the car for half the day haha. I'm hearing noises when pushing and releasing the clutch at idle which further suggest DMF failure.

extraspecialbitter > Twingo Tamer - About to descend into project car hell.
09/01/2015 at 10:48

Throwout bearing?

ceanderson920 > Twingo Tamer - About to descend into project car hell.
09/01/2015 at 10:52

pretty soon you wont be able to go weeks, only days, than hours, than nowhere at all.

SidewaysOnDirt still misses Bowie > Twingo Tamer - About to descend into project car hell.
09/01/2015 at 10:52

Yep, also could be crank-walk, but more likely DMF.

SidewaysOnDirt still misses Bowie > Twingo Tamer - About to descend into project car hell.
09/01/2015 at 10:52

Makes sense. Well, it doesn’t, but your problem now does.

Twingo Tamer - About to descend into project car hell. > ceanderson920
09/01/2015 at 10:54

Great Scott!

SidewaysOnDirt still misses Bowie > extraspecialbitter
09/01/2015 at 10:55

That should just make it noisy until the clutch starts slipping. You can drive an MT car for years with a bad throwout bearing, or at least I have.

Twingo Tamer - About to descend into project car hell. > SidewaysOnDirt still misses Bowie
09/01/2015 at 10:57

Indeed.

AMGtech - now with more recalls! > Twingo Tamer - About to descend into project car hell.
09/01/2015 at 21:19

I’m thinking you are correct with the flywheel guess. Does it vibrate when just free-revving the engine? If the flywheel was out of balance it would. If not, the DMF could still be bad, just not out of balance per se.

Twingo Tamer - About to descend into project car hell. > AMGtech - now with more recalls!
09/02/2015 at 04:43

It does vibrate free revving. However we got underneath the car again and after a while found out there’s a fourth (!?) engine/ transmission mount that seems to be worn out. I thought we’d checked them all to be honest.

AMGtech - now with more recalls! > Twingo Tamer - About to descend into project car hell.
09/02/2015 at 09:34

Awesome! That’s much better than the flywheel.