Stalling 172 Engine

[JamesS]

My 172 Cup was left standing in a garage for a few days while I was away on business, and when I came to drive it yesterday, the engine kept stalling.

When the engine revs were left to drop to idle (ie. Dipping the clutch to come to a standstill) they would momentarily drop to 0 and the engine cuts out. It feels as though the throttle body valve is closing momentarily, causing the engine to cut out.

I have checked the throttle body and it is relatively clean (was only cleaned a few months ago). Does anyone have any other suggestions for what it may be? Have done a search and can find nothing conclusive on here.

Before leaving it standing it was fine, so am a bit baffled as to why it has suddenly started doing this. Any help is greatly appreciated!

 

[Chris Mac]

needs a new throttle body, its the idle control valve inside the black box attched to the TB.

mine did exactly the same thing

 

[whatisjustis]

http://cgi.ebay.co.uk/Renault-Clio-172-Throttle-Body_W0QQitemZ380072854470QQcmdZViewItem?hash=item380072854470&_trkparms=72%3A1301%7C39%3A1%7C66%3A2%7C65%3A12%7C240%3A1318&_trksid=p3286.c0.m14

http://cgi.ebay.co.uk/Renault-Clio-...39:1|66:2|65:12|240:1318&_trksid=p3286.c0.m14

 

[Johnc172]

Just a thought before you pay out - check the connections of the TB, mine did this and it turned out the plug had worked loose so wasn't connected properly!

Worth a shot before paying out

 

[Schweppy]

Did you get this fixed?

 

[JamesS]

Yep, new (well second hand) throttle body sorted it out.

Engine no longer cuts out at idle, and the idle is far more settled.

Thanks to those who suggested the throttle body!