Dan. Talked to my brother about this tonight. He's a Mopar guy from way back. I told him about the up-hill thing and he said this... "The top end on those engines is oiled by oil coming up the hollow push rod then exiting out around the rocker. The oil then travels the the FRONT of the engine where it drains down to the pan. If you are going up hill and the oil is not draining back down to the pan for a few moments then the oil in the pan is likely low at that point in time. Check these things. Do you have the correct amount of oil in the engine? Do you have the correct dipstick, indicating the proper oil level? Take the valve covers off and see if oil is being pumped up those push rods with the engine running." I hope this helps. ----- Original Message ----- From: "Daniel M Wing" <imp1983@xxxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Sunday, May 04, 2003 11:18 AM Subject: IML: Help again -oil pressure Well, I switched to straight 30W oil, (I let the old stuff drain overnight. Lots of crap came out.) Took the Imp for a drive today and things were fine for about 9 miles, and then the lifter started clacking again. I shut it down and let it cool awhile. Started up and it was still a little noisy, but then the noise faded away and she was running great. She ran great most of the way home, but I have to climb a hill. Once again the lifters started clacking, and bingo -oil light flickered on. Had to shut her down. Let it rest a bit, started up noise went away and she ran fine. Idles beautifully in the driveway. No, I didn't hook up a pressure gauge. ( I guess I will have to get one.) Yes, I did try some oil detergent additive (against Dick Benjamin's advice. I have used it before and it did work.) However, I did notice that there was some oil on the front of the transmission housing. Could this be a rear oil seal leak? If so how major of a job is it to fix?) Thanks in advance for more help. (I'm afraid that if this ends up being a big deal, I won't be registering for Carlsisle any time soon.) Or, driving the Imp. :( Dan Wing Marcy, NY USA imp1983@xxxxxxxx