It sounds like a dodgy battery to me. A dodgy battery can cause starting issues no matter how charged you think it is.

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I have had it on a pro booster/charger pack , the battery is fine , when I jump the starter it turns well and as fast as always .

there is no fuel getting through and no power to the switch on the starter .

immobilizer warning doesnt come up to tell me the key hasnt been recognised .

Battery and starter are 100% fine

 

Blocked fuel lines or may by fuel pump issues.

 

Blocked fuel lines or may by fuel pump issues.

but it doesnt even turn over , fuel issues it would still turn over !!

 

Air in fuel ?

 

Blocked fuel lines or may by fuel pump issues.

but it doesnt even turn over , fuel issues it would still turn over !!

May not turnover, if its getting no fuel supply what so ever, then what's it going to run on too turn over. Check everything and still cant find why it would looking like to trip to Ford and leaving it with them. Good Luck.

 

If I disconnect the fuel feed from the filter on a running car the car will turn over it just wont start ..

The fuel is not the issue .

the battery is not the issue

the starter is not the issue

there is no power to the ignition circuit , (fuel pump , injectors , starter ) PCM ????

Ford Dealer mechanics are idiots , technicians "computer says to do this " .

I was hoping this would be one of the many many issues that a ford mondeo suffers from and someone might have come across this before ... so I can avoid phoning a non ford affiliated auto electrician

Air in fuel ?

and that would stop the starter how ???

 

Check all your body grounds bud. The - terminal usually gets bolted to the passenger side strut tower or near by.

There may be other ground points, for example, trace the starter ground if it has a wire, or clean it's contact to the block if it is grounded through its casing.

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cheers bunker .. I have just picked up a haynes book of lies ... for wiring diagrams and it has nothing about the immobilizer , and only partial diagram of the ignition...

 

Can you get the car to turn over by applying a direct feed to the starter ? If you can do this then try doing it with ignition on and see if car starts then , it could be a bad ignition switch

 

please read all of my first post , I tried jumping the starter first along with all the fuses , swapping relays , charging battery , spare key .

I have replaced or tested every fuse .

the wiring diagrams in the hayes manual are a joke , the ford dealers are less than clueless and apparently think a mk4 is a mk3, no surprise there .

I deliberately tried to avoid using this car as I have no faith in fords whatsoever and it has still managed to break ..

the haynes wiring diagram would have you believe the car only has 2 wires going to the ignition and there is no immobiliser

this is doing my head in

 

The immobilizer is hardwired to the PCM hence the 2 wires only .

Can you get someone to get an ELM327 and Forscan to do a fault code reading ?

 

I have numerous diagnostic tools this is off my delphi ds150 ...

 

there are 5 wires to the ignition but only 2 shown on the haynes wiring diagram

 

the Haynes manual only shows the wires related to the starting system, the doted lines around the ignition switch in the manual states that it is only showing part of the ignition switch, there should be enough information in the diagram to trouble shoot a no start, for instance if you put the start switch to position 3 start it should send battery voltage down the bu/wh wire to pin 1 on the starter relay r1 , if you see voltage at pin 1 it will confirm the switch is ok.

 

IT IS , THE SWITCH IS FINE , problem is after that

 

what other test have you done at the relay.

 

I had a similar problem with an Econetic 1.8. Intermittent failure to start, battery warning light, then full electrical failure.
It turned out to be a problem with the alternator. If you have the same alternator, it has a small spindle linking the alternator to where the belt turns. This was broken, so only worked intermittently. It fails gradually until it finally gives in. Worth looking at.

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Resurrection .... little megger , did the alternator failure stop yours from starting and cranking ???

I have tested the starter relay . I have a permanent 12v feed going to it , ignition switch live goes 12v when I turn the key to position 3 . the output to the ecu goes 12v at the same time . but nothing comes out of the relay to the starter solenoid ????

tested relay and tried several new relays and always the same ????

but if I bridge the permanent 12v input to the solenoid output hillbilly style it turns over ????

 

12 volts on the wire to ecm when switch to position 3 is because the ecm isn't sending a ground to the relay to start the car, sometimes when the ecm stops the operation of a component to protect the engine when it detects a fault the fault has to be fixed and the codes have to be cleared before it resumes normal operation again.

 

I have numerous diagnostic tools this is off my delphi ds150 ...

Duff battery

 

Yes, the alternator part failure (spindle) wouldn't let it start or turn over. It's not an actual "alternator" failure.
It just died as a result of no electrical power being generated.

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I have numerous diagnostic tools this is off my delphi ds150 ...

Duff battery

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