Hi,
I'm a new member to the Forum and have a 2013 1.2 Clio IV (D4F D740 engine) with about 15,000 miles on the clock and a persistent hesitation or misfire.
It shows itself under acceleration (all the time) at anything above about 3000 rpm and appears to be a very brief hesitation or stutter - only for a fraction of a second, but continuing a second or so later as the car continues to accelerate. I've tried putting an injector cleaner in the fuel but it didn't help. I've also taken the crankshaft sensor off and cleaned it (incidentally, it didn't have the usual metal tip protruding - but I assume this is a later version). The sensor was magnetised and readily clung to any steel surfaces. Fuel consumption is only in the high 20's but it's very rural around here and it does a lot of short journeys.
The Check Engine light is not on and a code reader has not thrown up any fault codes.
From what I've read on the Forum it sounds like the following could be the cause:
Grateful for any advice please.
I'm a new member to the Forum and have a 2013 1.2 Clio IV (D4F D740 engine) with about 15,000 miles on the clock and a persistent hesitation or misfire.
It shows itself under acceleration (all the time) at anything above about 3000 rpm and appears to be a very brief hesitation or stutter - only for a fraction of a second, but continuing a second or so later as the car continues to accelerate. I've tried putting an injector cleaner in the fuel but it didn't help. I've also taken the crankshaft sensor off and cleaned it (incidentally, it didn't have the usual metal tip protruding - but I assume this is a later version). The sensor was magnetised and readily clung to any steel surfaces. Fuel consumption is only in the high 20's but it's very rural around here and it does a lot of short journeys.
The Check Engine light is not on and a code reader has not thrown up any fault codes.
From what I've read on the Forum it sounds like the following could be the cause:
a) ignition coil;
b) spark plugs;
c) crankshaft sensor;
d) camshaft sensor;
e) MAP sensor.
Would anyone be able to confirm whether my list of likely suspects sounds reasonable (or suggest any alternatives or additions) and if it does suggest what order I should begin to replace things please? I intend to replace them one at a time and see if things improve rather than do so all in one go.Grateful for any advice please.