P38 DSE Starting Problem

tmsumner · Aug 24, 2010

Evening Gents. My P38 is reluctant to start when cold. I've put a new Land Rover battery on it, changed the air filter, fuel filter and the glow plugs but still it is reluctant to start. Any ideas??

roddy4 · Aug 24, 2010

Have you checked current is getting to the glow plugs?
Also check relay by ecu
could be the the pump in the tank,is it ok when hot?

dogsbody · Aug 24, 2010

Having just changed mine with startling results I'd suggest the in-tank pump. It's a simple electrical pump so just check that you've got a decent flow at the filter with the ignition switched on.

wammers · Aug 25, 2010

Change the ECU temp sensor.

tmsumner · Aug 25, 2010

Thanks Gents for your thoughts so far. I bought a multimeter today to check the glowplugs, haven't actually checked them yet, it's now too dark. The flow to the fuel filter looks good, so I'm guessing that's not the problem. It does start when hot, although sometimes it is reluctant. Which relay is it? and where is the ECU temperature sensor? Your wisdom is appreciated.
Tim

rewmer · Aug 25, 2010

Check the draw from the fuel pump. There was a post on here a little while ago that gave the figures for a good and bad pump.... Hold on, I will see if I can find it .....
Here you go, 4.5 amps for a good pump

Also worth mentioning cheap glowplugs are a no no. Use OE

leet · Aug 25, 2010

rewmer said:
Check the draw from the fuel pump. There was a post on here a little while ago that gave the figures for a good and bad pump.... Hold on, I will see if I can find it .....
Here you go, 4.5 amps for a good pump

Also worth mentioning cheap glowplugs are a no no. Use OE

Ive just fitted a Britpart in tank pump and it is drawing 7.6Amps. Any thoughts on this anyone?

storm99 · Aug 25, 2010

nathan5346 · Aug 25, 2010

Does it work

leet · Aug 25, 2010

my p38 is knackered

wammers · Aug 25, 2010

tmsumner said:
Thanks Gents for your thoughts so far. I bought a multimeter today to check the glowplugs, haven't actually checked them yet, it's now too dark. The flow to the fuel filter looks good, so I'm guessing that's not the problem. It does start when hot, although sometimes it is reluctant. Which relay is it? and where is the ECU temperature sensor? Your wisdom is appreciated.
Tim

Under manifold usually a blue body. The brown one is for the temp gauge.

leet · Aug 25, 2010

wammers said:
Under manifold usually a blue body. The brown one is for the temp gauge.

hi wammers, is that definite? i didnt have a temp gauge at all and when i was looking around the other day noticed that the blue plug wasnt plugged in. I plugged it in and now have a temp gauge readout on dash

wammers · Aug 25, 2010

leet said:
hi wammers, is that definite? i didnt have a temp gauge at all and when i was looking around the other day noticed that the blue plug wasnt plugged in. I plugged it in and now have a temp gauge readout on dash

The ECU temp sender is usually blue. The one for the dash temp gauge is usually brown.

rewmer · Aug 26, 2010

leet said:
Ive just fitted a Britpart in tank pump and it is drawing 7.6Amps. Any thoughts on this anyone?

Yes

P38 DSE Starting Problem

tmsumner

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