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1-8 of 9 Results
  1. Engine
    Can I re-check the bearing clearance on my recently built and run TBI 350 by pulling the mains and rod ends, wiping them down and plastigauging them? Or, do I need to pull the entire crank, wipe both sides of the bearings down and reassemble "dry" to get a more accurate (as much as you can with...
  2. Vortec 5300 5.3L V8
    (oil pressure at running temp is about 20ish psi) I got the p0521 code the other day, and I replaced the oil pressure sensor and the little filter. I cleared the code and everything was fine for the next day or so. then the check engine light came back on same code! I'm wondering what else it...
  3. Vortec 5300 5.3L V8
    Hello all I have a 2007 GMC Sierra new body style 5.3 with AFM (arghhh) and I was driving down the high way last night and I got a low oil pressure turn off engine warning an a P0521 code. So this morning I swapped the oil sensor and put in a new filter screen under the sensor knowing this is a...
  4. Vortec 6000 6.0L V8
    Hello, I just recently bought a 01 Silverado 2500HD 6.0 4x4, when I bought it the truck drove amazing and always held a minimum of 40psi of oil pressure, I later did an oil change with 5w-30 and noticed that I would get to as low as 15 psi of oil pressure and sometimes it would drop to zero...
  5. Vortec 5300 5.3L V8
    I've got a 2005 GMC Sierra 1500 Z71 with the L33 engine. This Saturday, I did the oil pan gasket, and the oil pickup tube o-ring. My old o-ring was becoming flat clearly and it was very brittle as it broke when I was taking it off. I changed it because before changing the oil, I would start the...
  6. Vortec 5300 5.3L V8
    Hey all, I have a few questions about the oil pressure sensor on our engines. Lately my oil pressure gauge has been reading too low in general, especially at idle like at red lights or stop signs. I was doing some searching of parts and noticed some show this filter thing that comes with (I’ll...
  7. Vortec 5300 5.3L V8
    2005 Silverado with 278,000 miles with oil pressure gauge that occasionally goes to zero for 1-2 seconds and springs back to 80. No associated engine noise or sputtering. It is not reproducible by coasting, turning, accelerating or decelerating. What could be causing this?
  8. Vortec 5300 5.3L V8
    2000 chevy Silverado 1500 5.3, has low oil pressure problems, my mechanic and I have replaced the oil pressure sending unit, it now has a milling high flow oil pump, thoroughly cleaned pickup tube, cleaned oil pan, and have ran diesel thru it to clean the engine and then did sea foam to clean...
1-8 of 9 Results
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