[Army 352P CWO]

Thanks for all the responses so far. I do have the Bentleys. I did replace the fuel pump with a new Bosch unit within the last 15K, so I hope that's not the culprit. I will so some further checking while under the car (hopefully tomorrow), though, just to be sure. I'll also check the relay and at the fuse panel for appropriate voltages. Can I swap out one of the other relays with the fuel pump relay, or do I have to get another fuel pump specific relay?

I've read in this forum that you ARE supposed to hear the fuel pump running, but I've also read other posts where people say they never hear theirs running. What's true, or can it vary from model to model? I'm guessing that when people say you can hear it running, they mean even when you're not under the car with your ear up to it - that you should be able to hear it while standing beside the car, correct?

Tim, I have read through most of your "CIS for Dummies". That's nicely done. You've done a great job of pulling the pertinent info together. Thank you very much - a great service to all.

I do know I may have to break down and buy the fuel pressure gauges, but was hoping to avoid it just now as this problem initially seemed to be an all-or-nothing on/off kind of thing happening .... until my 'fix' resulted in the car not wanting to idle now, that is...

Just FYI, I've also replaced the injectors with new ones approx. 10K ago, and I also replaced the sleeves and O-rings at that time. The RPMs always drop when I remove my oil filler cap, so I don't think I've got any vacuum leaks going on, or at least didn't until my 'fix'.

thanks again.