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Mike, Renault Technician
Category: Renault
Satisfied Customers: 39198
Experience:  Tech Expert
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Very high engine revs on start up, 2-3000 RPM. This can continue

Customer Question

Very high engine revs on start up, 2-3000 RPM. This can continue for some time, even when operating temperature has been reached.
Submitted: 2 years ago.
Category: Renault
Expert:  Shantal-Mod replied 2 years ago.
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Expert:  Mike replied 2 years ago.

Hello and Welcome.

My name is MIKE - Im happy to help / advise.

Air intake as such will not cause this issue -not being blocked - but what can cause it is unmetered air going into the engine - ie, a leak.

You need to check very carefully all the vac / air pipes on the engine...looking for loose pipes / fittings - and splits / perished pipes anywhere - Anything like this will cause this.

Also check the TB - throttle body - its mount / gasket - see if the whole unit is tight as it should be -

Use a length of hose as stethoscope - to listed for air sucking...

All your symptoms point to this.

If all else fails- you could well have a faulty air mass meter - but do check as above first before any parts replacements.

Let me know how you go..and / or let me know if you need anything further on this..

~>>~~>>~ Meanwhile now at this point- Please do click on the "Exc / Ok rating" for me at this time.. "Thank you" in advance for that .

.. Note that you can get back to me anytime at all after doing the rating - it doesn't close you out --

Best Rgds, MIKE