80 series

Hi mal,

Maybe a breather hose has come loose or developed a crack somewhere. I would check all the hoses on the intake manifold, fuel pump before troubleshooting any further.

Hope this helps.

Jim.

Hi Mal B
Is the air con on?
Turn it off let the idle settle then turn it (AC ) on and see if the idle lifts 2 -300 rpm if it does not check the idle up unit on the side of the pump
Ray

Change the fuel filter...put some fuel treatment through the tank that kills algai.