2004 Renault Laguna pulsing when cold

2004 RENAULT LAGUNA

130,000 MILES • 1.9L • 4 CYL • 2WD • MANUAL

ANDREWHAYWARD

my 2004 laguna 1.9Dci is pulsing while cold it over revs and returns to idle at approx. 3 second intervals, once warm the pulsing stops. any ideas?

Jan 7, 2015 at 4:59 AM

JACOBANDNICKOLAS

Check for vacuum leaks and check the idle air control valve on the throttle body.

Jan 7, 2015 at 5:27 AM

ANDREWHAYWARD

Thanks for your help, I will check it out.

Jan 7, 2015 at 7:51 AM