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Range rover 3.9 no spark??
Posted: Sun Nov 14, 2010 3:39 pm
by V8James
Hi all
Range rover 3.9 on a j plate
picked it up cheap as a non runner
After cranking it over for a while i can smell a hint of fuel from the tail pipe which sort of says to me that there is fuel getting in but just no spark
It already has a new coil + new plugs, whats the best sequence to be checking + trouble shooting?
Cheers
James
Posted: Sun Nov 14, 2010 6:15 pm
by Coops
rotor arm???
Posted: Sun Nov 14, 2010 6:17 pm
by kiwicar
Ignition module?
Mike
Posted: Sun Nov 14, 2010 7:29 pm
by V8James
i havnt looked at rotor or dizzy cap etc as i put ht lead from coil close to an earth + when i cranked it there was no spark from the coil
Someone has suggested it could be the module screwed to side of dizzy?
Cheers for the help
James
Posted: Sun Nov 14, 2010 10:53 pm
by 90Bob
Had the same problem on my 3.5 efi recently
Turned out to be the amplifier module on the side of the distributor.
Check out the "she won't start" thread for full details
Cheers
Posted: Sun Nov 28, 2010 12:20 pm
by V8James
Right its running
12v at coil when ignition on, but when cranking theres nothing
Put a wire from battery + to coil + and it fired straight up + will keep running when i take the wire away
Any suggestions as to what may be the cause of this?
only thing that spring to mind is ignition switch
Cheers for all the help
James
Posted: Sun Nov 28, 2010 7:40 pm
by kiwicar
I seem to remember this can be one of the relays that over rides the oil pressure safty cut out while cranking, but I am sure some one will be along to correct me if I am wrong
Best regards
Mike
Posted: Sun Nov 28, 2010 9:21 pm
by Coops
isnt there meant to be a 12v feed from the crank side of the starter solenoid?
check to see if any terminals have come off the solenoid etc,.
Posted: Sun Nov 28, 2010 9:41 pm
by softdash3.9
Mine was a defective rotor arm
The simple RR manual ignition checked identified the faults for me
Haven't got them to hand but could dig them out if you need them
Posted: Mon Nov 29, 2010 8:27 am
by V8James
Thanks for the replies people
kiwicar wrote:I seem to remember this can be one of the relays that over rides the oil pressure safty cut out while cranking, but I am sure some one will be along to correct me if I am wrong
Best regards
Mike
Any ideas where im likely to find this relay? is there a chance it will be with fuel pump relay?
Coops wrote:isnt there meant to be a 12v feed from the crank side of the starter solenoid?
check to see if any terminals have come off the solenoid etc,.
Will check that today
softdash3.9 wrote:Mine was a defective rotor arm
The simple RR manual ignition checked identified the faults for me
Haven't got them to hand but could dig them out if you need them
If you could that would be great
Cheers for the help
James