"Maybe it's too hot for me to think straight. Any suggestions on what else I ought to check? "

Probably the method is what needs checking. You're not going to find the fuse blower poking around with an ohmmeter, or by focusing on components that might need replacing. The short is not likely to be hard and fast: Does it kick the fuse if you just turn on the ignition and wait for the delay (10 sec) to cycle? Probably not, because the short is on the other side of the low pressure switch.

Look for wiring damage. Insulation worn through by vibration. It won't necessarily show up on your ohmmeter, because it won't be actually making contact when you've got your head under the hood. The better method with shorts is always divide and conquer. Replace the fuse with a 21W bulb, and remove components in the path. Start with those I suggested earlier because it is easy -- the low pressure switch, for instance. Just pull the connector off. Does the light come on then? No, 240K ohms is not going to blow a fuse. Guaranteed. Neither is 88 ohms.

Here's one alternative to kicking fuses while looking for a short.




--
Art Benstein near Baltimore

A grenade thrown into a kitchen in France would result in Linoleum Blownapart.