GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

Hello from Noob

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Old Dec 9, 2010 | 11:48 AM
  #1  
omalley1537's Avatar
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Default Hello from Noob

Hello everyone,
Just wanted to say hello, back in the GM fray after an ill-fated experiment with a Dodge Diesel (found out three things 1-I could have designed a better-built truck than dodge 2-Dodge warranty service suck worse than most 3-I can't afford to play in diesel land).

Picked up a CC/SB 07 Vmax 4x4 LTZ with about 40k on the odo. I absolutely love the truck and for my needs (very occasional light towing and DD) it fits much better than the 3500 Diesel Ram.

Besides saying hello, also wanted to ask a question. My truck reads about 30-ish on the oil pressure at idle when warm, 40-ish at cruise. The pressure comes right up when I accelerate, without any hesitation. Based on my searches this seems normal as it seems that the L76 doesn't have the oil pressure that I recall my 02 Sierra 5.3 having. My only concern is that when idling when warm, the gauge seems to "wander" somewhat between about 25-35. Seems rock-steady at cruise. Is this normal or is something bleeding down then pumping back up? Engine runs great, is quiet, and performs great. Is this something I should be watching or is it normal? I guess after a couple years of huge $$$ fixing the Ram repeatedly I'm a little gun-shy as well.
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Old Dec 9, 2010 | 08:00 PM
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From: maryland
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my truck does the same.. holds 25-30 @ hot idle. mine has 61,570 on the clock, havent had any problems with mine.
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Old Dec 9, 2010 | 09:37 PM
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my 6.2 does that but at WOT it holds 65psi without a problem.
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Old Dec 9, 2010 | 09:53 PM
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My 5.3 has horrble oil pressure, always has...25 at idle and barely sees over 40ish ever, even at WOT...

Could just be the gauge, but the way I drive it I'm sure to find out...
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Old Dec 10, 2010 | 09:55 AM
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Yea, Diesel world can get expensive, but oh so worth it!!!

Might slide into it in a couple of years. My 98 Yukon is still all I need for the ranch and to pull at this point. n my bros F250 handles the bigger stuff.

We need pics of your truck!!!
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Old Dec 10, 2010 | 05:08 PM
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i put a manual guage on my last truck and the one on the dash was about 10 psi off.. so i wouldnt be too concerned with it..... I would watch it, if it continues to fall then i would be concerned
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Old Dec 10, 2010 | 06:40 PM
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I have a modded 5.3 and I'm 40 on the button @ 158k mi.
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