Mechanics

CAR JERKING WHILE DRIVE,LIKE NO POWER I

2000 Renault Megane

Engine Performance problem
2000 Renault Megane 6 cyl Front Wheel Drive Manual 73000 miles

car jerk while driving sometime it drive very smooth like nothing wrong. My mechanic changed coil pack, and few senores but car does same thing.
please help me if you can
thanks
Avatar
Sibtain
November 23, 2009.



Start by adding a good fuel injector cleaner to the fuel tank to clean out the fuel system. Have the vehicle plugged into a diagnostic computer and please supply any fault codes !

Dave H
Nov 24, 2009.
My mechanic cheangs 4 coil pack and map sensor he put on the computer and nothing come up on system now he is saying change crankshaft sensor please help me I do not know what I do I spent so much money but no luck.
Please let me know what you think what shell I do

many thanks

Tiny
Sibtain
Dec 4, 2009.
Hi, Check your engine breathers may be blocked with old thick oil, blow out change your oil with correct oil, and change oil filter.
Ps. Before you do this remove oil filler cap and drive your car a short distance hopefully not two much mess if no problem its may be the eng/breathers, you have to use the correct oil (25/50) etc check with your supplier.

Tiny
Geo321uk
Feb 4, 2010.
I would replace the CKP (crankshaft position) sensor and the spark plug wires !

Dave H
Feb 7, 2010.