Ford Ranger

[Hilly]

As above, with Land Rovers, it's often the CPS not giving a correct signal whilst current is being supplied to the starter motor. See if you can read the live data from the CPS whilst cranking, using diagnostics, then compare it to the data whilst the engine is running. I'd put my money on that. Just try the battery though or try jump starting it. My mate has a BMW that will turn over for a long time at a reasonable speed, seems to have plenty of go in the battery, pointing to another fault, but putting a jump pack on it starts it straight away.

He tried today with a starter charger and no good.

 

[Hilly]

my 12 plate did this, crankshaft sensor was the problem

Are they hard to fix ?

 

[ARW]

Are they hard to fix ?

i dont know it was done on warranty, took them 2 days to find the fault

 

[roscoe erf]

my 12 plate did this, crankshaft sensor was the problem

would this not show up on diagnostics

 

[NH-James]

He tried today with a starter charger and no good.

Didn't think so, always worth trying the simple stuff first.

would this not show up on diagnostics

Not as simple as that, diagnostics doesn't always find the problem with an error code, quite often a case of trawling through live data and comparing it known acceptable values.

 

[ARW]

nope, all they got was the engine wasnt letting diesel flow when cranking over as it wasnt fast enough for the dodgy sensor to sense it. abit like a stop solenoid retracting

 

[roscoe erf]

Didn't think so, always worth trying the simple stuff first.

Not as simple as that, diagnostics doesn't always find the problem with an error code, quite often a case of trawling through live data and comparing it known acceptable values.

so if the fault is there it doesn't store them so you can view on reader even my old erf lorry does this

 

[NH-James]

so if the fault is there it doesn't store them so you can view on reader even my old erf lorry does this

Yes, if a fault code is triggered then it is stored. However, things like this can often cause problems without the system realising there's a fault.

 

[Hilly]

I just spoke to him, he says first garage put a new crankshaft sensor on ! so must not be that.

 

[Lincsman]

Could be the stop solenoid, while cranking the power is being sapped enough to not work, while towing it has all the battery power so works.

 

[Hilly]

Could be the stop solenoid, while cranking the power is being sapped enough to not work, while towing it has all the battery power so works.

That's my guess. like I say I wanted to cross the starter with a screw driver to test it but could get in to the bloody thing, they must be a total nightmare to work on !

 

[NH-James]

Could be the stop solenoid, while cranking the power is being sapped enough to not work, while towing it has all the battery power so works.

If this were the explanation then surely putting the jump pack on would provide enough extra juice for it to work properly?

 

[Hilly]

If this were the explanation then surely putting the jump pack on would provide enough extra juice for it to work properly?

That's a fair point actually ! unless the power too the stop s is getting cut all together when cranking ?

 

[Lincsman]

If this were the explanation then surely putting the jump pack on would provide enough extra juice for it to work properly?

Possibly, but bad earths, old starters can have an effect on the power getting through.

 

[milkloss]

Possibly, but bad earths, old starters can have an effect on the power getting through.

Or spike the voltage in various places you don't want.

 

[Hilly]

Ive convinced myself that stop s isn't working while cranking, it bump starts in a matter of 2 foot but cranks allday got too be stop s................hasn't it lol great when its not your own lol

 

[Blue.]

Ive convinced myself that stop s isn't working while cranking, it bump starts in a matter of 2 foot but cranks allday got too be stop s................hasn't it lol great when its not your own lol

Remove the plunger out of the stop solenoid and try it without.

 

[NH-James]

Ive convinced myself that stop s isn't working while cranking, it bump starts in a matter of 2 foot but cranks allday got too be stop s................hasn't it lol great when its not your own lol

I'm not saying it isn't that, but the stop solenoid is far less susceptible to being affected by interference while cranking, compared with a crank position sensor. Is the sensor anywhere near the starter motor or do the wires pass near each other?

 

[sawdust]

Remove the plunger out of the stop solenoid and try it without.

Do they have a stop solenoid, anit it all done through ecu now?

 

[Blue.]

Do they have a stop solenoid, anit it all done through ecu now?

Done through ecu if common rail,could be rail pressure sensor? Has anyone posted that,I'm half asleep.