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Renault Laguna 2.0l 1999 - struggles to start & rough idle for a short time?

When i go to start the car it sometimes doesn't start, or takes a while and sometimes starts first time. When it started i gave it a service (plugs / air filter / oil filter/ oil), but this did nothing. Also when i drive the care and pull up to the lights the engine revs to 1,500 and drops to 500 a few times then settles down to 900rpm, when i pull off the car drives normally. Any help would be apreciated.

Cheers
Phil

Phil
June 2008

Renault Laguna Vehicles, Cars Start Idle Time

Hi Peter,

Thanks for your help, i'll run it the garage and get them to check it out.

Phil
June 2008

Sounds like an airflow problem. I would suspect the airflow mass meter or cold start valve. The latter is dirt cheap. If you know of a good mechanic with a diagnostic machine get him or her to read your cars codes. Alternatively your car could be suffering from poor compression but other symptons would usually show too.
Good luck.

Peter
June 2008