Stock Lq9 6.0L Oil Pressure At Idle — Don'T Hate Quote

Tried another new sensor with same results. The first problem was that when the temperature dropped below 10 degrees (I live in Minnesota) the pressure would drop to 0 when I would start the vehicle in the morning. As far as clogged screens, I cannot see how the needle would not go low and remain low. Stock LQ9 6.0L Oil Pressure at Idle. The oil/air mixture would have low viscosity that would allow the lifters to leak down and rattle after the engine was warm. Once oil pressure builds up it goes away, but it seem that it takes the pressure a little longer to build than usual.

Gm 6.0 Oil Pressure At Idle Speed

Happened about 1000 miles ago, had the oil and filter changed and back to normal. I hope this helps some else. BTW I replaced the oil sender with the cam change because I got a new cover for the valley area which does not have the AFM stuff on it. Fixed my problem for $2K, new engine runs like a champ. Forum Statistics241. Your problem sounds like the one I had on my 2005 Yukon XL. What was the problem. Have replaced oil pump, oil pick up tube, sending unit. I wonder what this oil lifter assembly does? Gm 6.0 oil pressure at idle vacuum advance. I had an 04 GMC 1500 with 5. I luckily called BS on that and told them I wanted to know what "pressed fitting rotated".

And GM won't do anything about it although they have known for years what the problem is!!! After doing all of this we still had the problem of the oil pressure dropping. I'm looking at buying a used 2012 extended 3500 van with a 6. I had the same issue but with my Oldsmobile 88. I've got a 2004 Sierra with the 5. In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. While this plan seems sound, I have seen several comments here about new oil pumps ( and o-rings I guess) have not fixed the problem. Gm 6.0 oil pressure at idle speed. No pressure turn off engine on my 2007 tahoe 5.

Gm 6.0 Oil Pressure At Idle Vacuum Advance

I've got the same freaking problem with the lifter tapping. I have ran this truck out of oil, started it on fire, ran with percieved no oil pressure for over 6 hours at 80 mph pulling a sled trailer through idaho and montana. When I arrived home, I noticed that they had replaced my Fram oil filter with a larger ACDelco filter, A PF63E. Then he decided to replace the throttle body. I just bought one for $12. Oil pressure gauge never moves off 35 - 40psi but the alarm comes on saying low oil pressure shut engine down now..... GM 6.0 normal idle oil pressure - TractorByNet. So, I have seen ALL OF THESE problems listed here and NONE of them are it. 5 hours to replace plus parts.

So while you're in there, you might as well put new parts in. If the pressure was indeed zero and building back up the needle movement would be slower. Changed screen/filter under sensor and oil pressure sensor. I had this problem on my 2008 Silverado at about 105, 000 miles and this thread really got me going in the right direction. I see these frequently.

Normal Oil Pressure At Idle

Planning on dropping the pan tomorrow and checking sump, o resort will be full coverage, trusty helmet and a nice big oak tree at 30mph. Oil is changed regularly. I was really hoping to get more miles out of this before engine replacement. I guess the engineers put that $7 screen there for a reason.

In the meantime, I have a fix for the problem.... just bought a 2011 YukonXL Denali. If poor oil has been used, the filter might generate an error code but almost never. If you decide to do this yourself and you have a 4 wheel drive, buy/rent a transmission jack or buy a transmission jack adapter for your floor jack. Primarily my oil pressure would drop down to less than 5 lbs after I drove it a mile and then I would spend my time at red lights with my foot on the brake revving the engine to keep it from about shutting off. After the full cleaning the light went off for long enough for me to pass emissions and had stayed off for 3 months... And you guessed it... Purrs like a kitten even though the dash lights are going crazy and the guage drops to zero in about a minuet. There is an issue with the camshaft thrust plate seal failing. I've had a couple a few like this. Personally, I use what came on it OEM. Since then I have had some lifter noise now and then. Gm 6.0 oil pressure at idle silverado. Palm of the Right Hand. Now after 1000 miles it happened again. The oil pressure would slowly drop down to 20 sometimes lower.

Gm 6.0 Oil Pressure At Idle Silverado

Did you check the pressure with a mechanical gauge? Starts around 40psi then drops below 10. Replug the throttle body connector with the engine running and just reset the codes using your trusty reader. Even at highway speed it was noticeably lower. Hubby is an old school mechanic, changes oil on time. What Causes Low Oil Pressure at Idle (Diagnosis and How to Fix it. 4) Have the proper tools (ref mistake #3). 3 Tahoe, 0-80 psi back and forth, would get stuck on 0 psi and the low oil pressure warning light and the annoying ding would sound off! 4) Replaced screen and sensor anyway since I had them. I have read that these motors don't maintain high pressure at idle but since running Neutra it won't maintain pressure but the valve lifter has stopped sounds smooth. However, he said there are other screens on the oil lifter assembly and that should be replaced along with a new oil pressure sensor. When the pressure is too low or too high, it can cause several issues within the engine itself, necessitating costly repairs, or permanently damaging the engine.

I hope that this helps others with the same problem. Next I changed the oil pump and pick-up tube o-ring and everything looks good, purr's like a kitten until I drive it and still does the same thing no oil pressure shut off engine. Took to local guy, he suspected the screen right away. Yeah I soldiered new ones in my 03 couple years ago. The AFM switches to V4 mode much more often. But at idle I typically see 38-42 depending on temps, 45-55 under throttle, and 60-70 at WOT. When i started up my truck there was no change at after dropping $350. Email me I can help. Got our first really cold weather for the year and the battery died.

In your case its back to the pump for me because of what you said abut the guage.. I am switching to Mobil 1 full synthetic. I have a 2005 Yukon XL 1500, 203K miles. No screen in place under the sensor. And if I do should I replace with equal or upgrade to different engine.

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