So, 2001 1.6 petrol Focus Zetec engine.
Occasionally when warm and idling it pulses, as shown in the video.
No other issues with performance noticed. The actual loud rattle is just the battery cover which is off and resting loose but it helps shows the pulse.
Was going to give the IAC valve a clean or even replace and check hoses, throttle body etc.
This engine doesn't have a MAF, rather a MAP which is a bit more of a faff to clean I think.
Was thinking about fuel pump, coil pack or plugs but it's not a constant problem and only occasional issue at idle (hence thinking the sensor or IAC valve.) Am very much a novice and it's only from things picked up along the way with this engine over the years.
Anything else worth considering that isn't a pig to do?
Cheers
Occasionally when warm and idling it pulses, as shown in the video.
No other issues with performance noticed. The actual loud rattle is just the battery cover which is off and resting loose but it helps shows the pulse.
Was going to give the IAC valve a clean or even replace and check hoses, throttle body etc.
This engine doesn't have a MAF, rather a MAP which is a bit more of a faff to clean I think.
Was thinking about fuel pump, coil pack or plugs but it's not a constant problem and only occasional issue at idle (hence thinking the sensor or IAC valve.) Am very much a novice and it's only from things picked up along the way with this engine over the years.
Anything else worth considering that isn't a pig to do?
Cheers