What oil you want to drain? if engine oil, its @ the oil pan
SOURCE: Where is the oil drain plug on a 2000 GMC Sierra 1500?
the drain plug is located in the bottom of the oil pan , the one with the big dip in it
SOURCE: Oil pan plug
Its almost in the very back of the oil pan.Or on ither side in far back.
I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_a3369546f8067589
SOURCE: Ned to change the oil in transfer case
The Z71 typically comes with the auto 4wd transfer case (cannot remember the GM number). This requires AutoTrak II, which is available at a GM dealer. Do not use any other fluid in this transfer case! The previous post was correct in the location of the two plugs, but not on the fluid (the other types of transfer cases by GM use ATF). The transfer case is located under the truck right under the cab. There is a small skid plate under it, and a large driveshaft leaves the rear end of the case heading to the rear differential (axle). If you have the manual or electronic w/o auto 4WD transfer case, you can use Dexron III, but Dexron VI is a better fluid that is also now available at your local auto parts store. Again, if you have the AUTO 4WD button in the dash, use the AutoTrak II fluid from the dealer.
SOURCE: were underneath my truck is the oil drain plug
if there is cover under the engine remouve and look for bolt not securing anythingremouve slowly
Testimonial: "Thank's there ia a cover underneath but right next to the filter bottom of pan on passenger side looks like oil drain plug."
SOURCE: LOW OIL PRESSURE ON 2007 GMC SIERRA 1500. CHANGED
have it tested using a manual gage if still low then main baring ore most likely bad that would mean a over hall if is really low and bearings bad should be making rattle noise when started up first few seconds
Testimonial: "thanks alot.truck is not making a rattling noise.we did check it with a manual gauge.it read about 10 at idol. press. gets better as you incr speed"
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