my 300tdi keeps cutting out

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.

brush 1

New Member
Posts
6
1996 300tdi keeps cutting out driving along fine then it just cuts out. if i wait a few mins it will start again and drive fine but after a while it cuts out again. i have changed all filters and even cleaned out fuel tank but still the same. it is running on diesel not veg oil . i feel i cant go anywhere because i know it is going to let me down. can anyone help please.
 
1996 300tdi keeps cutting out driving along fine then it just cuts out. if i wait a few mins it will start again and drive fine but after a while it cuts out again. i have changed all filters and even cleaned out fuel tank but still the same. it is running on diesel not veg oil . i feel i cant go anywhere because i know it is going to let me down. can anyone help please.

Have you tried taking the sedimenter to bits and cleaning it, do you know where it is?
 
Have you tried taking the sediment to bits and cleaning it, do you know where it is?
i have cleaned the sediment out . i have just took the plunger out of the stop solenoid and going to see if it still cuts out .i think it could have something to do with the immobiliser playing up .thanks.
 
The spider unit ( so called because it has 8 wires connected to it ) causes problems on the 300 Tdi - either preventing them from starting at random or cutting out , again at random . One of the circuits it controls is the feed to the pump solenoid - no feed means no start or if running engine cuts out . It also controls (AFAIK) the feed to the starter solenoid which again prevents starting.
You can bypass it by running a wire from the white wire on the ignition switch to the pump solenoid - so engine will stop when you switch off .
You could , as a trial , run a wire from battery positive to the solenoid and see if the fault is cured - but you have to disconnect the wire to stop the engine .
It is a very annoying type of fault which , as you say , makes you think twice about using the Disco at all . And it could be dangerous if you stalled halfway across a busy road - as happened a friend of mine .
There is a good post on this subject - when I find it I will post it up for you.
Found it . Shows how to get to the spider and repair it if you want or fit the bypass harness supplied by LR - part no AMR 4956.
The Definitive Alarm Spider Post - LR4x4 - The Land Rover Forum
 
thanks for your advice dooroy i will be having a look at the spider unit today.thanks once again.
 
Spiders are FTD - they don't stop the experienced thief from stealing your car but they will stop you from starting it when you least expect it. A decent auto electrician will do the job easily as they remove lots of them. Well, here in Africa they get removed because the last thing you want is a car that won't start when you are miles from nowhere.

They also attract ants (yes!) and they will short out the whole shebang if you don't watch it. Ants with their formic acid do not do electronic bits much good at all.
 
The spider unit ( so called because it has 8 wires connected to it ) causes problems on the 300 Tdi - either preventing them from starting at random or cutting out , again at random . One of the circuits it controls is the feed to the pump solenoid - no feed means no start or if running engine cuts out . It also controls (AFAIK) the feed to the starter solenoid which again prevents starting.
You can bypass it by running a wire from the white wire on the ignition switch to the pump solenoid - so engine will stop when you switch off .
You could , as a trial , run a wire from battery positive to the solenoid and see if the fault is cured - but you have to disconnect the wire to stop the engine .
It is a very annoying type of fault which , as you say , makes you think twice about using the Disco at all . And it could be dangerous if you stalled halfway across a busy road - as happened a friend of mine .
There is a good post on this subject - when I find it I will post it up for you.
Found it . Shows how to get to the spider and repair it if you want or fit the bypass harness supplied by LR - part no AMR 4956.
The Definitive Alarm Spider Post - LR4x4 - The Land Rover Forum

Pure Genius. Thank you so much for the illustrations found on your link!:lalala:;)
 
Back
Top