Landcruiser 1HDT surging

Hi Cruiser, So how did you narrow it down to an earth problem, and how did you then find it at the tail lights?
And why does this cause the problem then??

cheers
Troy

Troy,

Finding out it was an earth problem was an accident really

I had been having problems with the tail light cluster (kept blowing bulbs but not fuses) and when we finally decided to replace it we found the loose earth (we were not aware this was going to resolve 2 problems).

When we had finally finished fitting a new tail light cluster, it was obvious straight away that the other problem was fixed.

I am not an auto electrician so don't fully understand it, but it seems that the tail light circuit shared a common earth with the circuit that controlled something on the pump for the fuel control.

Maybe someone else can shed some light on it

Cheers,

Cruiser

Yeah thats what I felt too, was thinking it may have been a blocked fuel filter, had this on the 60 series, but not so consistant.
Just done a basic service myself, so just oils and filters.

troy

Cheers, as soon as this weather buggers off, i'll get out and have a look at the earth's

As above, replaced all the filters.

Thanks will have a look at that too, thing is, lack of power is not an issue. Even while surging, it will power up instantly if you push the pedal, no lag or lack of resonse. Only surges while not under load.