cranking and taking ages to start

hey all not been for a while as not had ant issues lol

i seem to have the reverse of the hot start problem , a while ago it was starting fine cold but not when warm , however now its fine when warm but takes an age to start when cold i`d say 30 seconds of constant cranking then it fires up .

had new battery new in tank fuel pump new starter motor .

checked injectors and fuel lines .

my thoughts are fuel injection pump or glow plugs ?

heater plugs, cheapest option first !!

Think about glow plugs or ECU temp sensor rather than injection pump.

thanks will change glow plugs , never changed these before only spark plugs and tbh ive no idea what im looking for although just watched this ..

Replacing the glow plugs in a Mitsubishi Delica L400 - YouTube

guessing its similar set up .

valhalla said:

thanks will change glow plugs , never changed these before only spark plugs and tbh ive no idea what im looking for although just watched this ..

Replacing the glow plugs in a Mitsubishi Delica L400 - YouTube

guessing its similar set up .

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Nothing like as easy as that. Removing manifold is best way to get at them. You will need a deep 12 mm socket an 8 mm socket and extensions and a wobbler for ease.

wammers said:

Nothing like as easy as that. Removing manifold is best way to get at them. You will need a deep 12 mm socket an 8 mm socket and extensions and a wobbler for ease.

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had a quick look and couldnt see them so more looking is needed

found this link and now i know

http://www.landyzone.co.uk/lz/f10/range-rover-p38-hard-start-glow-plugs-lot-pics-155826.html

check your getting power to them before anything. difficult to belive all 6 go down at the same time!

Failing/failed glow plugs show up on diagnostics don't they?

gfromleeds said:

check your getting power to them before anything. difficult to belive all 6 go down at the same time!

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does start so maybe 3 or so are down ?

they probably are original so 16 years ish .

When you get them out you can test each one with a set of jump leads and a bit of spit on the heater element.

Before you attempt to get them out, liberally apply penetrating fluid a few times and allow to sink in.

Last thing you want is a snapped plug!

gfromleeds said:

check your getting power to them before anything. difficult to belive all 6 go down at the same time!

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You don't need six to go down at the same time. Just a couple duff will cause bad starts. You need three consecutively firing cylinders to have good plugs or it will struggle. Firing order is 1,5,3,6,2,4 work it out.

TCubed said:

Failing/failed glow plugs show up on diagnostics don't they?

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Yes you will get a glow plug fault. But it does not say which one or how many are faulty.

Oh, misinterprited post, i thought it was 'slag the over 60's night', doh

wammers said:

Yes you will get a glow plug fault. But it does not say which one or how many are faulty.

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How does it do that Tony? There is no feed back from the glowplugs, glowplug fault just means the relay has not operated as far as I can see.

Datatek said:

How does it do that Tony? There is no feed back from the glowplugs, glowplug fault just means the relay has not operated as far as I can see.

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Don't know Keith. But i had a fault come up, can't exactly remember what the wording was. When i changed the head gasket, injection pump and timing chains a few months ago two plugs were down. Replaced them cleared faults and it has not been back since. So your guess is as good as mine. Other than that experience would tend to agree with what you say. But can't explain it.

Datatek said:

How does it do that Tony? There is no feed back from the glowplugs, glowplug fault just means the relay has not operated as far as I can see.

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I had this one:

GLOW PLUG (HEATERS) FAULT
Type: INVALID FAULT,LOGGED,INTERMITTENT
RPM = 8
WATER TEMP = 92
OCCURRANCE = 6

Would that have been an iffy relay rather than a faulty plug then?

TCubed said:

I had this one:

GLOW PLUG (HEATERS) FAULT
Type: INVALID FAULT,LOGGED,INTERMITTENT
RPM = 8
WATER TEMP = 92
OCCURRANCE = 6

Would that have been an iffy relay rather than a faulty plug then?

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Should not be any glow plugs at 92 degrees. Do you have an hot start fitted? I had at the time that maybe the cause. Maybe the two duff plugs were just coincidental.

wammers said:

Should not be any glow plugs at 92 degrees. Do you have an hot start fitted? I had at the time that maybe the cause. Maybe the two duff plugs were just coincidental.

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Nope, it had a powerbox though