Range Rovers Forum banner
Status
Not open for further replies.
1 - 4 of 4 Posts

·
Registered
Joined
·
27 Posts
Discussion Starter · #1 ·
Hi my car is misfiring on no 8 so I have changed plugs and leads
but miss is still there so will order a coil pack

but now my oil warning light comes on once engine is warm it goes off once engine speed increases past
idle but lights again on idle

question can a faulty coil pack on number 8 cause the oil warning light to come on?

a mechanic friend seems to think yes

regards Peter
 

·
Registered
Joined
·
27 Posts
Discussion Starter · #5 ·
i really did Think what the mechanic said was plausable as I'm aware of other cars having odd faults with falling coil packs such as AU Ford Fairlane v8 where coil packs upset ABS/Tracction control

Oil and filter change was the first thing I did after seeing the warning light
the engine has always run sweat and unlike what I see others say it has plenty of get up and go even keeping up with most cars from traffic lights and that's with my 3300 kg caravan on the back

ive had the car since 2008 it was purchased for the caravan
it's been serviced well and frequently using book recommended oil etc for Perth
so I'm not happy with current state

It is still think it odd that misfire started on slow point on way home from weekend caravan trip then next day at home on start-up once engine was warm oil light lit

i suppose I could borrow coil pack from my 4.0 Disco and see what happens but my gut feeling is rebuild time
 

·
Registered
Joined
·
27 Posts
Discussion Starter · #7 ·
basic electrical and electronic principles does not change also possibility of external factors causing malfunction is always plausable

the ford was mentioned as an example of how a seamngly unrelated abs/traction control is upset by faulty coil pack

So with regard to p38 my question was not about oil pressure but the electronics behind it such as becm being upset by bad coil pack and causing erroneous lighting of warning light

yes I would be inclined to say two seperate problems but with mechanic saying otherwise
and costs involved if it's more than a failed pressure switch I thought it was as worth asking here
 

·
Registered
Joined
·
27 Posts
Discussion Starter · #9 ·
I had already done most of what was suggested before my first post

but i did acknowledge the advise by posting this information in my later response

Perhaps it's me but It seems to happen so often in this forum that you ask a specific question as I did and you get advice you did not ask for or want and then you get insults

i did not ask what can or does an oil warning light mean
I did not ask what can cause an oil light to come on

My question was simply can a faulty no8 coil pack cause erroranous lighting of oil light?

now don't get me wrong I do appreciate the responses and some had really interesting concepts

what I don't like is the insults, which by the way can easily serve to destroy credibility of the person making them
 
1 - 4 of 4 Posts
Status
Not open for further replies.
Top