Running rough

2010 Renault Megane 1.5dci
Car: Renault Megane
Year: 2010
Variant: 1.5dci
Categories: Running Rough, Starting & Power Loss
accellerate hard and loose power black smoke fuel consumption down ,but sometimes runs fine
Problem added: Feb 16, 2016 (8 years ago)
geoffg

Points: 12
May be Fuel filter air filter when was it last serviced ?
Answered Feb 16, 2016 (8 years ago)
Derbyshire

Points: 262
Reply
This is due to a air to fuel ratio imbalance, either the fuel system is delivering too much fuel into the engine or there is not enough clean air (oxygen ) a few things to look for:
•Faulty injectors (injectors need attention at about 100.000 to 120 000 miles)
•Faulty injector pump
•Dirty air cleaner
•Turbocharger or intercooler faulty
•Problems within cylinder head, valves clogged up due to faulty EGR (exhaust gas recycling unit)
Answered Feb 16, 2016 (8 years ago)
whittingehame

Points: 37,699
Reply

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Turbocharger
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Intercooler
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Intercooler common problems
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