Independent Renault Forums banner

1 - 8 of 8 Posts

·
Registered
Joined
·
6 Posts
Discussion Starter #1
Hi All

Firstly... Just wanted to say what a great forum you have here... glad to be a member...

I have searched through lots of posts on "problems with scenic start up" however I cant seem to figure out what is wrong with mine. I have bought a 2nd hand scenic about a week ago love it to bits... however the start problem is starting to bug me. I have already spent about £200 trying to fix this issue. Im not mechanically minded but have a friend who is... before sending it to the garage again.. I wanted to know if anyone has had a similar issue.

I have cleaned the throttle body and have repladed the TDC.I have also had a diagnostic test.

Two things were mentioned on the diagnostics..

1. Can sensor signal code - Present at test
2. Low manifold vacume, actual 480 MBAR should be 340 MBAR.

The recomendations were Suspect Timing belt loose'

Could any of these issue be at fault??.... When the car starts from cold... It starts.. turns over but then dies... its as if the revs or engine does not kick in to stop it from idleing. It starts on the 2nd attempt - however when my wife drove off a coulple of days ago with kids and it conked out just crossing a junction (lucky there were no cars!!)

Here is the video. http://vimeo.com/21557788 about 30 seconds into the video I try to rev the engine and you can hear it sort of rattle and stuggle to rev..

Any info would be greatly appreciated

Many thanks

Ernie
 

·
Premium Member
Joined
·
918 Posts
Hello Ernie,

I listened to the video clip of your scenic being started presumably from cold as thats when the fault is worse and then cutting out. I could not hear it on the video but do you get a rattle like noise on start up? If you do then it could be a faulty dephaser pulley and its a very common fault on the 1.6 16v VVT K4M engine. To fix the fault the dephaser pulley has to be replaced and also as the timing belt goes round the dephaser pulley its a good idea to replace the timing belt as well. Also its worth replacing the other pulley's, tensioners and water pump at the same time. Its not an overly cheap job, but ring up RCS and ask if they will help out with the repair costs. If not an independent garage, ideally a Renault specialist may be cheaper.

Harry.
 

·
Registered
Joined
·
6 Posts
Discussion Starter #3
Hello Harry..

Thanks very much for the info... I will try to find a specialist in my area... thanks!! I will keep you posted

Ernie
 
O

·
Guest
Joined
·
0 Posts
The dephaser is not the cause of every problem on the 1.6 VVT engine.:d

I am not sure how a loose timing belt gets diagnosed? The belt is toothed, so is either working or not I'd have thought.

A compression test could reveal much more.
 

·
Premium Member
Joined
·
794 Posts
Hi Ernie,

First of all, activate your automatic lights, they're a great feature :d

OK, my Mégane did this exact thing, more when it was warm though. But my car showed a CHECK INJECTION fault all the time which yours doesn't seem to?

I changed the throttle body and coolant temperature sensor with no joy. But brought it to a Renault specialist and he found the map sensor to be at fault, he also replaced the wiring saying it was in a pretty bad state. It hasn't done it since, and is running better than ever.
 

·
Registered
Joined
·
6 Posts
Discussion Starter #6
hahah.... MéganeDynamique.. Automatic lights...

I just bought the car and I thought.. oh what a nice feature... DOH... how wrong was I!! My wife took the car for a spin and when she came back she said that the car was possesed!! Lights turning on and off etc.... I might just leave them off thanks!! haha

Thanks for your advice.. I have just dropped it of to a renault specialist... I will keep you posted.

I will call him tomorrow and mention the map sensor...

Ps Glad your issue was solved!!

Nothing spoils a new car more than problems and repair bills!!
 

·
Registered
Joined
·
6 Posts
Discussion Starter #8
Hello smh1980,

I just got my car back a few days ago... Yes it is fixed however I still panic everytime i turn on the car..just incase it comes back...

It was the dephaser... In the end I replaced the dephaser, pulley and timing belt kit, accessory belt and end caps - the mechanic reset the paramaters and tested.... all for £500!!

I know its a lot... but it did fix it.. I am keeping an eye on it now... it starts perfect most of the time now but sometimes it sounds a little weird but it never cuts out now!!

Hope this helps!!
 
1 - 8 of 8 Posts
Top