1999 Jeep Cherokee

if you left the fuel tank mostly empty you probably have a nice load of water in there from condensation.

Ted

Yep - I checked for fault codes = none

i tested the odb device - unplugged the radiator sensor - the tester showed P0118 - temperature switch problem - so the ODB tester is accurate

darn - i better check the resistance in the spark plug cables, huh?

any other ideas?

And if the plug wires are at fault, most likely a continuity check wouldn't tell you that because the more likely failure mode of a plug wire is bad insulation allowing the high voltage to jump to a nearby ground (possibly via some carbon tracking thru a pinhole) rather than across the spark plug gap.

There is a widespread myth floating around that a continuity check of plug wires will tell you if they're good or not - it may or may not, depending on the problem (leaky insulation vs. bad conductor).

Bill Putney (to reply by e-mail, replace the last letter of the alphabet in my address with "x")

Hello, Is it a computer chipped key ? It is possible that you need to re program the key. Anthony