Jeep WJ 2.7 TD no start this morning why ??

[macabethiel]

Well got up this morning to take the Missus to work as she still can't drive yet after her hip replacement in March 2019.

We are both sat in the WJ that we use mainly for local short journey work (112k miles on clock), turned they key, the engine cranked over immediately followed by a sort of mini backfire. Tried a second time, cranked over nicely no go. Third and final attempt with accelerator to the floor after two glow plug cycles without cranking - ziltch.

Got the WK out from behind the drive gates so used that instead, returned home for a final crank - plenty of battery but it did not start / fire etc.

I know nothing really about diesels so when I lifted the bonnet I was clutching at straws but I had a sudden light bulb moment. (I have no Easy Start)

Can anyone guess what I did first that lead me straight to the cause of the problem ?

 

[Blocky10]

You bought a Nissan? :hide:

 

[Banshee]

You bought a Nissan? :hide:

:lol :lol :lol :lol :thumbs

 

[Lazy-Ferret]

You bought a Nissan? :hide:

So cruel :lol:lol

Had the Airfilter pipe come off?

 

[macabethiel]

Shameful lack of service !!

So cruel :lol:lol

Had the Airfilter pipe come off?

I pride myself on ensuring fuel filters are changed as required, oil & filters, all noises from suspension etc are fixed.

So I un-clipped the top of the air filter box lifting the lid off as far as I could due to the intake pipe etc restricting movement. The air filter was as new, then it clicked that this was the inside of the K&N square filter.

I lifted out the filter and was horrified by how it looked, failed to take a picture before I cleaned it but it was full of dead leaves, some sort of pepper type seeds & general muck.

The intake side of the box looked like autumn! Then realised that the rented house we lived in last year had trees everywhere.

Air filter temporarily replaced with a new paper one, she fired up straight away !!
I was more disgusted with myself for not having checked the filter 12 months ago than I was with the diagnosis & fix. This is my public pillory! lol

 

[Lazy-Ferret]

I was going to say the air filter, but I knew thar would not be a possibility... shame on you! Lol

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[macabethiel]

I hang my head in shame.

I was going to say the air filter, but I knew thar would not be a possibility... shame on you! Lol

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I feel suitably pilloried now!

 

[Lazy-Ferret]

I feel suitably pilloried now!

Lol.

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[Lazy-Ferret]

Mine decided to throw me a curve ball over the sunny spell we had a few weeks back.

About a month after getting her, I was sitting in very heavy traffic at the Dartford crossing, and a battery warning light came on. I was a bit puzzled as I have fitted volt meters to the two batteries, and both showed at 14.3 volts. I looked at the temperature gauge, which was just below the halfway point, which was a bit higher than normal, but not "High". Once I started moving, it went off again.

Some time later, when the cold spell arrived, the battery gave up the ghost, so I changed that, and blamed the warning light on the failing battery.

All went fine until we towed the caravan for the first time, and once again, sitting in traffic, there was a Bing, and the light came on, but again, the volt meters were at 14.2 volts.

Over the course of the holiday, on any hot day, it got worse and worse, sometimes doing it on rough roads, but not always, and often coming on and off multiple times. I had a good look round, but could not see anything obvious, but had by now bought a code reader. This was reporting an issue with the generator module... Joy.

When we got home, I decided to give it a good going over, so disconnected the battery, and started unplugging all the modules I could find under the bonnet, cleaning the contacts, and then spraying them with silicon grease before re-seating them. To be honest, they were all perfect, with no signs of any corrosion.

Once I had removed enough bits to get at the alternator, I started checking it's connectors. Again, the Positive and Earth were perfect, and nice and tight. I then located by feel, a connector right at the back, which just came off as I touched it... Bingo..

When I looked at the plug, there was a bit of plastic jammed into the locking mechanism, which looked like bad news, as the socket is moulded into the alternator and you can't really see it without removing the alternator. Anyway, I removed the broken bit of plastic, which pinged off at high speed never to be seen again. I then put the connector back, with the idea of seeing if I could fabricate a way of holding it in place, or worst case, maybe stick it in place with some silicon. Anyway, when I pushed it home, it clicked into place, and locked firmly.. Actually it locked so firmly, I could not get it back off again, as I failed to actually see where you need to press to get it to release, and every connector on the Jeep uses a different style connector.

So now, touching wood, it seems to have cured the issue, but just waiting for a hot day, or when we tow the caravan to confirm it.

At least mine was not "bad maintenance" this time..:doh:augie