I have a 2001 GMC yukon that has been making some rough engine noise right on start up. the grinding, rubbing noise goes away after about 20 sec (I assume it is after the oil gets circulating) Some people mentioned possibly putting heavier oil in it and or some lucas. I did an oil change and put in Pensoil 20w 50 with 1 quart of lucas and the nosise is now very muted and the engine seems to be running much quieter in general. Some people I have talked to seem to think this is WAY to thick to run. Is it too thick? I have only driven 100 miles since change. I could always put lighter stuff back in it.
2001 Yukon engine noise
- Thread starter Tobers
- Start date
bowtieman55
Well-Known Member
- Joined
- Jan 25, 2006
- Location
- Edenton, NC
yes...I would be running 5w30 if I were you. Otherwise, you'll get noise on startup.
lilfoot
Member
- Joined
- Apr 1, 2008
- Location
- Marion,N.C.
10w30 oil is recomended for all gas engines in this region of the U.S. If it's engine noise you hear on start-up, heavy oil would be like a band-aid. Check oil pressure and check for oil leaks. the oil pump could have been damaged from running too long without oil. Also cold weather tends to thicken oil so when it's first cranked it doesn't move as fast as it should.
Hurdt299
Well-Known Member
- Joined
- Nov 13, 2006
- Location
- Asheville, NC
Also how is the oil filter mounted? Is it horizontal or vertical? Be sure you're using a good filter (i.e. Wix, Baldwin) NOT Fram, and make sure it has a check valve in it so the oil in the filter isn't draining back into the oil pan when you shut it off.
- Joined
- Apr 16, 2005
- Location
- Sharon, SC
the 01 is most likely a 5.3.
They have a known piston slap issue as well as an oil pump issue.
1- 5w30 is the GM recommended oil for this region, plenty run 10w30 the but the OEM recommends 5w30.
2 - The piston slap is only at start up for the first 10-20 seconds but over time will grow longer. I had an 01 that had the slap up until 165k and I got tired of it and dropped in a newer 5.3
3 - These vintages had a major problem with the oil pick up tune splitting along its side in the oil pan, and not having adequate oil pressure. The 03 -> 5.3s resolved this. If your oil pressure is ever low, drop the pan and check or plan on replacing your engine.
They have a known piston slap issue as well as an oil pump issue.
1- 5w30 is the GM recommended oil for this region, plenty run 10w30 the but the OEM recommends 5w30.
2 - The piston slap is only at start up for the first 10-20 seconds but over time will grow longer. I had an 01 that had the slap up until 165k and I got tired of it and dropped in a newer 5.3
3 - These vintages had a major problem with the oil pick up tune splitting along its side in the oil pan, and not having adequate oil pressure. The 03 -> 5.3s resolved this. If your oil pressure is ever low, drop the pan and check or plan on replacing your engine.