Mondy Gutless Shudder

Drivers/Front passengers airbag - shared wiring fault. Probable causes

-wiring, drivers or passengers airbag.

Only way to reset it is to fix it.

Check for the HT leads too, and don't fit pattern ones, these are very prone to leakage on No.3 and 4 plugs. Look for black burn marks on the ceramic of the plugs.

If they are OK, then unfortunately you probably have the good old sticking valves problem. Try a *good* injector cleaner, and use 5w/30 oil. Failing that, it's a head off and new bits job.

I fixed enough of them.

...especially if it's done a multiple of 40,000 miles or thereabouts.

The pre-tensioner wiring under the front seat(s) is a bit manky. Try unplugging and re-seating the multiplug.

I had this after I jammed an atlas under the passenger seat, and it knocked the plug.

If it were high revs, under load, I'd say it was definitely plug lead problems, but given the problems this engine has with plugs & leads, I'd replace all 4 plugs *and* leads with Ford OEM parts. Do *not* get Halfords or pattern parts.

Pete.

Sorry Pete, bit of confusion there. The shudder is in the higher rev range (I meant when you first go into gear) and dies off as the car speeds up and the revs drop again.

Had a look on ford TIS and found a bulletin aboutthe airbag light thing with a rectification procedure.

I'll take your advice on the plus and leads.

All the best

Thanks again

I'll take your advice on the plugs and leads

Yes, indeed.