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v8bobber

Member Since: 26 Aug 2012
Location: pembrokeshire
Posts: 445

2008 Defender 110 Puma 2.4 DCPU Java Black

Puma difficult to start

Hi All,

I have a 2008 110 2.4 Puma which is difficult to start. It turns over and over for a fair while before actually catching and starting - usually accompanied by a large cloud of smoke which is probably unburnt diesel. If it is stopped and started again soon after it usually starts easily.

It has been fine in the past but the vehicle has been tucked up in the shed for 4-5 weeks while I got round to changing the vacuum pump. There was only about a quarter of a tank in it so I filled it up a couple of days ago to make sure there was plenty of fresh diesel in it. Once it's going it runs ok although maybe a little rough for a while.

Seems strange the leaving it parked up has caused these problems.

Anyone have any ideas?

Dave

5th Sep 2016 2:56am

v8bobber

Member Since: 26 Aug 2012
Location: pembrokeshire
Posts: 445

Just a quick bump for this thread as I nearly didn't make it to work this morning. It took three protracted cranking sessions to get the vehicle started.

There was plenty of smoke coming out of the exhaust while the engine was cranking but would not fire.

I have drained some fuel off the filter but it seems to be 100% diesel with no water in it, so doesn't look like water in the fuel. Seems strange though that this has happened after the vehicle had been sat (in my shed) for a few weeks.

I have a nanocom that I haven't had chance to plug in yet but will plug that in when I get home. Any ideas to consider while I wonder if I'm going to make it home or not?!

Cheers

Dave

11th Sep 2016 8:58am

Crofter

Member Since: 19 Feb 2015
Location: Peterhead
Posts: 169

2009 Defender 110 Puma 2.4 USW Baltic Blue

Could it be an air leak with air getting into the diesel line?
Never had this with my Puma but have with other Landrovers.

This might explain the need for cranking.

12th Sep 2016 5:06pm

Riccarton

Member Since: 10 Aug 2015
Location: Gods' Own Country
Posts: 280

2012 Defender 90 Puma 2.2 HT Zambezi Silver

Have you read any codes? I'd be checking the heater / glow plugs and associated circuit.
The plugs continue to heat after the engine has started and without them they do run a tad lumpty for a while.

12th Sep 2016 5:12pm

agentmulder

Member Since: 16 Apr 2016
Location: Outer Space
Posts: 1324

Mine smokes a wee while but always starts, but ditto on above advice >> first target for checking are the glow plugs. Solved the bowel problem, working on the consonants...

12th Sep 2016 9:59pm

HardCharger

Member Since: 03 Mar 2013
Location: Manila
Posts: 737

2011 Defender 110 Puma 2.4 SW Stornoway Grey

Weak battery?

13th Sep 2016 3:58am

hornet

Member Since: 04 Jan 2010
Location: Western Europe
Posts: 361

Re: Puma difficult to start

v8bobber wrote:
Hi All,

I have a 2008 110 2.4 Puma which is difficult to start.
[...]
It has been fine in the past but the vehicle has been tucked up in the shed for 4-5 weeks while I got round to changing the vacuum pump.
Seems strange the leaving it parked up has caused these problems.
Anyone have any ideas?
Dave

I would bet the problem can be limited to (one of) the injectors or their gaskets. I do not think it has something to do with glow-plugs except your ambient temperatures are extremely low. In that case a faulty CHT-sensor would cause similar problems.

13th Sep 2016 5:00am

hornet

Member Since: 04 Jan 2010
Location: Western Europe
Posts: 361

v8bobber wrote:
Just a quick bump for this thread as I nearly didn't make it to work this morning. It took three protracted cranking sessions to get the vehicle started.

There was plenty of smoke coming out of the exhaust while the engine was cranking but would not fire.

I have drained some fuel off the filter but it seems to be 100% diesel with no water in it, so doesn't look like water in the fuel. Seems strange though that this has happened after the vehicle had been sat (in my shed) for a few weeks.

I have a nanocom that I haven't had chance to plug in yet but will plug that in when I get home. Any ideas to consider while I wonder if I'm going to make it home or not?!

Cheers

Dave

Problem solved? What turned out?

2nd Nov 2016 4:54am

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