rover 100 wont start

[mgroy]

hi all my son has a rover 100 knightsbridge se that wont start, the battery was flat so i changed it when i turn the key to the first position you can hear the fuel pump start then when i try to start the ignition the is nothing at all, the ignition lights are on and the alarm light led goes off when the button on the fob is pressed "help me please"

regarde mgroy

[FreddieS]

When you change or disconnect the battery it will lose all power to the 5as, you need to resync, to do this press unlock 5 times iirc, it might be more times, then lock it etc, it will dis-arm the immobilizer and you'll be able to start the car.

Failing that, it could be the MFU has buggered, as the MFU contains the starter motor relay, when they fail they allow the fuel pump to prime but wont allow the car to start.

[mgroy]

have tried what you said and still wont start i am getting a clicking from the silver box in the engine bay

[FreddieS]

by silver box do you mean big square silver box near the RHS wing, thats the ecu, i doubt thats clicking.

more likely to be the throttle stepper motor, which makes a clicking noise when you turn the ignition off or when you reset it by having the IGN on and pumping the throttle 5+ times then turning the ign off.

[secretelephant]

Check the starter solanoid hasnt come adrift when you changed the battery.

If it is in position, switch on the ignition & connect a wire from the battery +ve terminal to the starter solanoid (you will need to remove the original wire to do this).
MAKE SURE THE CAR IS OUT OF GEAR & BE V CAREFUL WHEN DOING THIS!

If the starter spins over & the engine starts you know you have some kind of wiring fault. If it doesnt then your starter may be goosed or you possibly have a bad earth connection.

[mgroy]

there is defintaly a click sound from the ecu when i turn the key to the start postion just a single click

[MetroMartin]

Does it go if you bump start it?

How long was it laid up for?

[mgroy]

not tried to bump it its been parked up a few months but started a few times and never had a problem

[yorkiebar]

is the battery charged enough?

[mgroy]

its a brand new battery

[yorkiebar]

Not missed a lead off at the battery connection?

[probey]

Originally Posted by mgroy

its a brand new battery

clean the thin lead connection going to the starter motor. this lead should have feed to it when ignition in crank position..

[mgroy]

have tryed everything you have all told me and still nothing

[probey]

Originally Posted by mgroy

have tryed everything you have all told me and still nothing

have you got feed on lead when cranking?

[mikeanodd]

i got same problem,,voltage to solenoid on cranking,but it wont spin over,i think solenoid has jammed....bugger

[probey]

Originally Posted by mikeanodd

i got same problem,,voltage to solenoid on cranking,but it wont spin over,i think solenoid has jammed....bugger

check main lead going to starter motor and check engine earth. if ok give starter a tap...

[MetroMartin]

Originally Posted by mikeanodd

i got same problem,,voltage to solenoid on cranking,but it wont spin over,i think solenoid has jammed....bugger

Have you tried bump starting it,
Metro starter motors hate to be laid up and if it bump starts fine just needs a replacement starter motor.

[mgroy]

thanks a lot for all your help bumped car today and it ran just need starter now cheers

[mikeanodd]

i will try bumping it in the week no rush yet..thanx

[mikeanodd]

right...solenoid is goosed..not enuf power to pull yer socks off.i mean it wont throw the cog thing forwards...does it have magnetic coils in it or something?..off to the scrappy for me next week