Cerbera wont start at all any more.
Discussion
This has been an intermittent problem for the past 2 years probably. Where I'd stop (could be either hot or cold) then may have to sit there for a minute or so pushing the start button before it would fire up. It always would eventually but now i cant get it firing at all.
This afternoon - i removed the battery which appears to be taking a good charge and cleaned up the terminals and silver greased them up. They were pretty dirty so gleaming now. Still wouldn't start - i then used a battery booster pack - still wouldn't start - I also tried linking the negative to another negative on the chassis in case the main negative connection was dirty - again it never started.
It has the starting relay in the passenger foot well. This was changed out a couple of years ago but again it never really did anything to this intermittent problem.
The 100amp fuse is also fine. I now fear its the immobiliser ECU from looking at previous posts.
When going to start the car im getting the fuel pump priming first push and the starter motor solenoid pulling in but engine just wont turn.
If anyone has any advise for possible problems or other fixes i could try would be great.
This afternoon - i removed the battery which appears to be taking a good charge and cleaned up the terminals and silver greased them up. They were pretty dirty so gleaming now. Still wouldn't start - i then used a battery booster pack - still wouldn't start - I also tried linking the negative to another negative on the chassis in case the main negative connection was dirty - again it never started.
It has the starting relay in the passenger foot well. This was changed out a couple of years ago but again it never really did anything to this intermittent problem.
The 100amp fuse is also fine. I now fear its the immobiliser ECU from looking at previous posts.
When going to start the car im getting the fuel pump priming first push and the starter motor solenoid pulling in but engine just wont turn.
If anyone has any advise for possible problems or other fixes i could try would be great.
You can only get to it from the top. As yours is a 4.2, there is just enough room to get a hand in behind the throttle link rod and down to the starter harness. The wire you want is the thin single strand that goes into a large grey connector. Put a female spade terminal connected to a length of wire onto that connector. Briefly touch the other end of the wire to the battery +ve to turn the starter.
If that works, then it is possible to put a helper relay that is triggered by the weakened signal from the immobiliser and switches a clean feed to the starter signal wire.
If that works, then it is possible to put a helper relay that is triggered by the weakened signal from the immobiliser and switches a clean feed to the starter signal wire.
Okay this all sounds good thanks - i can picture all the things in my mind from previous starter replacement - shame my hands are so big lol. I will probably remove the fuel rails to assist. I though that the additional relay in the passenger foot well was a slave relay for the starter circuit? I this does fire up is it almost certain to be the alarm immobiliser relay.....if so would you be able to direct me in a method of sorting this issue?
Tanguero said:
You can only get to it from the top. As yours is a 4.2, there is just enough room to get a hand in behind the throttle link rod and down to the starter harness. The wire you want is the thin single strand that goes into a large grey connector
The wire is normally marked with a little tag saying starter.Been reading into this most for the past hour or so and getting my plan of attack sorted. Its sounding more and more like its my immobiliser ECU. If this is the case - is it still Carl Baker that everyone uses for these type of repairs? If it is and someone has Carls contact details could you post here or PM me these details please.
Locate the immobiliser (ask whoever services your car to tell you where it is), get a helper to wiggle the wiring loom going into the immobiliser and even tap on the immobiliser unit while you are pushing the start button.
It probably will start and if so that will certainly confirm it's the immobiliser.
There is a "fix" you can do that will allow you to eliminate the faulty circuit while still retaining the immobilisation (and obviously we won't be discussing that online)
It probably will start and if so that will certainly confirm it's the immobiliser.
There is a "fix" you can do that will allow you to eliminate the faulty circuit while still retaining the immobilisation (and obviously we won't be discussing that online)
GTti said:
Okay this all sounds good thanks - i can picture all the things in my mind from previous starter replacement - shame my hands are so big lol. I will probably remove the fuel rails to assist. I though that the additional relay in the passenger foot well was a slave relay for the starter circuit? I this does fire up is it almost certain to be the alarm immobiliser relay.....if so would you be able to direct me in a method of sorting this issue?
The relay in the footwell is non-standard as far as I can see from the wiring diagrams, although my 4.2 also had one in the same place as you describe. In my case replacing that relay cured the problem for a little while, but it soon had problems again, which were only sorted when I replaced the immobiliser.The new Meta alarm and immobiliser has only lasted about 4 years and the relays have started to fail again. Add to that the fact that the new version of the Meta alarm only has a 2 circuit rather than a 3 circuit immobiliser and I am currently looking for something a bit more robust!
I had similar issues with intermittent starting which gradually got worse it gave all the symptoms of being the immobiliser but turned out to be the solenoid on the starter motor it might be easier to test that first by running a live feed to the exciter wire and make sure it's firing and engaging every time.
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