My 98 V8 discovery won't idle properly. Sometime it idles OK when cold sometimes not.Its worse when its hot, it only idles at about 500 but seems a bit lumpy.
Ignition leads, plugs rotar,cap, crankcase breather filter etc all recently new drives and revs OK just an idle problem.
Cleaning the idle valve fixed it for a short while, tried cleaning again yesterday made no difference.
Anybody had any issues similar to this and what fixed it.
Going to clean the plenum out and tweak base idle next I think.