Renault Laguna motor loses power/torque (after 10-15 minutes)

Car: Renault Laguna
Variant: 1.6
Model Year: 2001
Categories: Running Rough, Starting & Power Loss
The motor loses power after approx. 15 minutes driving, no torque above 3000 rpm.
Motor is running fine initially (power & torque ok)then the problem occurs. In idle mode (no gear) the motor revs up normally but when driving the issue returns.
No alarms etc..

Does anybody recognize the issues ? Any ideas ?? Thx !
Posted: May 26, 2009 (15 years ago)
Sounds like you have either a crank sensor fault or mass air flow sensor fault, as it happens at around 3000rpm i would lean towards crank sensor
Posted May 27, 2009 (15 years ago)
hello can the crank sensor cause the car too lose its power and kick back in again just my car runs fine then after a while it starts to die out
Posted Dec 20, 2009 (15 years ago)

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