[Kramer]

OK.

I'm super happy with the 96 XJ that I've just procured and the vehicle behaves "just like it should" according to sir Gojeep but there's one thing that has stumped me: a rough idle.

The rough idle is constant. It is in time, i.e. every second engine revolution or whatever - can be felt as thumping when you hold the hand near the exhaust. Once you lift off idle it is smooth.

Already checked the following:

1. Cylinder head gasket - presumed good cause no bubbles in water, no smoke from oil filler cap after a long run and no power loss - the vehicle canes, yes sir.
2. Vacuum leak on inlet manifold - gasket was replaced by the stealership to weld the cracked manifold (taken off) and there are no other hoses loose (to my eye anyway).
3. Checked the brake booster - pinching the hose does not fix the problem so the diaphragm in the booster is good.
4. Cat/exhaust obstruction - eliminated cause I've put a hiflow cat and muffler on her 2 days ago (sounds sooooo sweet).
5. Spark plugs and leads, new
6. Dizzy cap + rotor button - cleaned up and replaced.
7. Put some injector clean into the fuel but have only done 100 kays since then.
8. Checked the error codes - no sensor failure (e.g. map sensor)

So there you have it. The only thing I haven't done is removed the injectors and have them cleaned professionally.

What are your thoughts?? Is there something else I should look at?

Kramer

[ 22 August 2002, 11:44 PM: Message edited by: Kramer ]