Hi all,
I've got a strange issue with the idle on the P38. When starting from cold it idles ok but when I've driven about half a mile or so and come to a stand still the idle momentarily goes to the correct RPM (750 from what I've read) but then goes down to about 650 and hunts very badly - I also can't correct it by using the throttle as something seems to override it.
It also doesn't like light throttle at low revs(when in gear), the engine just 'chatters' (can't think of any other way to describe it
) until I increase the revs slightly and it's smooths out again.
So far I've changed the in tank pump (which completely gave up), the ECU coolant temperature sensor, changed the fuel filter, checked for air in the clear pipe between the filter and pump (no air since the in tank pump replacement), given it a service etc, also put a new seal on the crankcase breather to air intake as the air intake end wasn't sealing properly but still no difference.
Apart from the idle / low rev issue it drives really well and always starts straight away hot or cold.
I've scoured through most of the threads concerning a rough idle but haven't found one with the same symptoms as mine so I'm hoping someone can shed some light on this
It's a 1996 2.5DT Manual with 144000 miles.
Cheers
Mike
I've got a strange issue with the idle on the P38. When starting from cold it idles ok but when I've driven about half a mile or so and come to a stand still the idle momentarily goes to the correct RPM (750 from what I've read) but then goes down to about 650 and hunts very badly - I also can't correct it by using the throttle as something seems to override it.
It also doesn't like light throttle at low revs(when in gear), the engine just 'chatters' (can't think of any other way to describe it
) until I increase the revs slightly and it's smooths out again.So far I've changed the in tank pump (which completely gave up), the ECU coolant temperature sensor, changed the fuel filter, checked for air in the clear pipe between the filter and pump (no air since the in tank pump replacement), given it a service etc, also put a new seal on the crankcase breather to air intake as the air intake end wasn't sealing properly but still no difference.
Apart from the idle / low rev issue it drives really well and always starts straight away hot or cold.
I've scoured through most of the threads concerning a rough idle but haven't found one with the same symptoms as mine so I'm hoping someone can shed some light on this
It's a 1996 2.5DT Manual with 144000 miles.
Cheers
Mike
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