The oil pressure guage on my '90 Grand Voyager (3.3 V-6) has started reading to the very low side lately, then comes back up to where it should be...When I start the car everything's fine, then sometimes (this is an intermittent problem) as the car warms up, the pressure guage drops off to where at idel, it's right on the line between low and normal.....Ideas? Is this just a sender, or it it the onset of the notorious "Chrysler Dash" problem? Could the pick up screen be getting gummed up? The car has a tad over 100k on it, but in 30 years of driving, I've never had a screen clog on me. I doubt it's the pump itself...at least I'm hoping so, because whoever designed the oil pump on the 3.3 really should have their head examined!! Thanks for any help or ideas!