quik01ss

iTrader: (24)

that's what I was thinking also if it was leaking it would just drain to the pan I'm going to do this first. O ring on oil pump, rear seal, and a new barbell in the rear just I case while I'm there put a new one in

miller456

iTrader: (36)

well just today so far my problem looks like it my be solved all i did was go to a thicker weight oil instead of using full synthetic. I had penzoil platinum 10w30 full synthetic and idled at 25-30psi hot. Switched to a 20w50 weight and now after driving it all day pressure stayed at a consistant 45psi at idle and never dropped below that and was at 60psi cruising but im a th400 so cruising speed for me at 60 is over 3k lol.

quik01ss

iTrader: (24)

I can't believe a 6 dollar o ring fix all oil issues

miller456

iTrader: (36)

$12 oil change solved mine

1fastcamarosss11

iTrader: (88)

well i'm at the problem also, i have the pan down. my question is how the hell did you guys get enough room to get at the bolt on the pick up. anyone pull the motor mount pins the jack the motor up? and help would be great hoping to have this finished tonight. thanks in advance guys.

miller456

iTrader: (36)

get a pry bar and put a rag under it so you dont smash the gasket and pry down on the pan if you have to. I loosened up the bolts as much as i could and was able to get my fingers in there. I suppose you could unbolt the pump and the pickup tube has a little room to move up and you should be able to get to it then. Its always kind of a pain especially if you have fat fingers.

quik01ss

iTrader: (24)

if I were you id jack the car up hold the front of the motor with a hoist pull the motor mount bolts to the motor can go as high as possible might have to watch the y pipe to the headers don't slip out ..then I unbolted the front shocks from under the car and took out the 6 bolts to the k member to give me a lot of room so I didn't mess up the o ring again I put the o ring and pick up on and off about 4 times before I was happy how it felt going in the oil pump.

1fastcamarosss11

iTrader: (88)

that seems like a lot of work. if you/i take the front bolt where the o ring is. will that just drop down or do i need to take and loosen the one in the back of the tube also. i can't believe i'm having this much trouble with this.

quik01ss

iTrader: (24)

Well that's the best way to do it or take the chance of doing by taking the timing cover off and taking the oil pump of but u may mess the o ring up

sscamaro1384

iTrader: (163)

so what was the result of the new o ring?

Wicked96SS

I have the same thing stock, my car sits at about 25-30 at idle...yet still climbs to around 70 under normal driving and wot. it runs fine and the valve-train sounds great then again it should with only 20,000 original miles on it! so i dont really pay much attention to it anymore.

dsmtrance

iTrader: (6)

I see 40psi on cold start-up idle and it settles to low to mid 20's when hot.

This is on a 408 iron w/ Melling pump.

WS-6_2002

iTrader: (10)

I'm having the same problem with my oil pressure. I changed my pum out awhile ago and then let the car sit for a long time. Does anyone know if you cn change that Oring with out takingoff the front cover and all the other crap infront? Thanks.

Grimes

iTrader: (3)

I had the same problem yesterday, but a fresh oil change and new filter did the trick. I have a feeling that sometimes the filters can get messed up. No scientific proof, but somehow my pressure is ok now.

I don't think the problem was the oil, because the change in pressure was so sudden that it would be very unlikely to have the oil degrading that much in the course of a few days.

O2Form

Just to clear a point up here, If the oring is damaged nicked etc it lets AIR into the oil stream that in going into the pump. NOTHING ELSE, it doesn't leak oil etc............ The aerated oil then causes all kinds of funky problems. If the damage to the oring is large enough to introduce enough air the oil pressure will be lower. A small nick will only cause lifter ticking noises.

Paul57

Is this o-ring the same on all LSx motors?? Mine is an '05 6.0 LQ9. Does anyone know the part number...it would really be helpful...I can't seem to find it in any posts??

SOMbitch

iTrader: (8)

It depends on the pickup tubes. The truck motors have different pans so the pick up tube is different and has a different o-ring... Match the o-ring to the pan/pickup tube you are using..

brow318

iTrader: (2)

I saw a tip on one of the old episodes of Horsepower TV where they had same problem. The problem was the o-ring was getting pinched on pickup tube when tightened down. The fix was to drill out the holes on the pickup tube a little so whole is oval/oblong in shape. That relived enough stress on pickup tube from pinching the o-ring and letting air in. You can watch episode on iTunes or PowerblockTV. I think it was episode 18 in 2009.