Well you live and learn. I just recently purchased a '95 xjs convertible 4.0 (which ran fine by the way) and wanted to clean up the engine bay a bit. Now she wont start. I didn't get crazy spraying it down with Gunk cleaner, just concentrated on the right side (passenger) of the engine compartment. The engine was cold and of course I hosed it down when finished. I let it dry off for a couple of hours and now it turns over but won't fire. I think it's getting fuel because I can smell it. Seems to be ignition. Any advice would be appreciated before it's off to the dealer. OUCH!! Thanks in advance.

 

Try and spray all the electrical connectors and plugs with contact cleaner?

 

Thanks.I'll give it a try but I did take compressed air and blow all the connections already.

 

I only mention it because I hadn't started the Cabriolet for a year and when she went appeared to be running on about 4 cylinders. I sprayed it all up and left it for a couple of days and tried again; sweet as anything, all 12 seemed to firing nicely.