Abs and glow plug light errors,blowing 80 amp fuse.

[Bozwell2201]

You are not wrong there,cant wait to start delving on the wiring,im hoping for an easy fix,a dodgy wire in the loom i hope, if not the crusher will sort it once and for all. Lol.

 

[ruston]

Just trace it back , start where there is heat and where there is obvious corosion. Routing around manifolds , that sort of thing .
Glow plugs is not the end of the world , just keep chipping away.

 

[Bozwell2201]

Cheers ruston,gets abit disheartening when its been going on for nearly a month,i,ll keep going its challenging.

 

[Bozwell2201]

Just had the 5th mechanic tell me he doesnt now no why the 80 amp fuse keeps blowing he doesnt reckon its a short in the wiring because his two wire and fuse homemade tester doesnt blow after he straightened the cable out,he said he thinks its drawing to much ampage,and said try disconnecting on glow pkug and see if that works,baffled.

 

[ruston]

Are all the glow plugs new?
Do you have an ohmmeter to accurately test the plugs ?

 

[Bozwell2201]

Hi yes ive got a metre,i changed all 5 a year ago,all good till a month ago did the ohm test 3 and 4 had high readings 55+,so changed them the rest 0.6,which apparently i should be looking for,but thats when problems started my glow plug light went out completely abs light came on permenetly,been nightmar3 ever since,the last test i did,i got .
no1 0.2 no2 0.2 no3 0.6 no4 0.6 no5 0.2,not been able to do another yet as ive ran out of fuses used 12 upto now doing tests it blows everytime i do preheat cycle on ignition,when the 80 amp abs fuse blows i dont get power to glow plug relay,sone fuse blow straight away sone tahe 6 turns of the ignition cycle waiting forcmore fuses now before i can carry on.been looking at doing an overide manual switch in the cab if its possible taking the relay out of the equation..

 

[shaun1]

Dis you measure the glow plugs with each one disconnected from the loom? If those 3 glow plugs are 0.2 ohms they will be drawing 60a each. Sounds like they have failed short circuit. Did you replace them with pattern parts? Perhaps they have not been manufactured to the same standard as the originals.

 

[Bozwell2201]

No tested them connected,i replaced all 5 from europarts,was told just make sure they were 11.5 v which they were cant remember the make though,should i test unconnected aswell then and what sort of reading should i look for.

 

[shaun1]

Ah yes if you test them connected to the loom you will be measuring the resistance across all 5 of them at once. Disconnect and check each one. I'm not sure exactly what the resistance should be, but looking online it seems that 0.6ohms is about right.

 

[ruston]

Yes take them out to test them individually. Try the circuit with them out to prove no short in harness . Euro parts are not renouned for quality parts either . Get a decent set if they are not reading as they should .
It is as @PEG said earlier . If you are blowing fuses at that rate you could have a shorted one.