How do I remove the oil pan to replace the oil pan gasket from a 96 gmc suburban 454 engine 7.4l

Help here but not specific to California

https://www.google.com/search?q=1999+GMC+454+Suburban%2C+replace+valve+cover+gaskets+for+California+emissions

..

1993 GMC SONOMA 2.6 CYL V6 NOT 4x4 OIL PAN ...

? 2:31
https://www.youtube.com/watch?v=1KsRTlnW7Cg
Sep 27, 2011 - Uploaded by JohnSmiths8379858
trying to reomove the oil pan to this truck has been sitting for about 6 ... 1993 GMC SONOMA 2.6 CYL V6 NOT 4x4 OIL PAN REMOVAL "HELP!

Oil Pan Gasket: How to Change Oil Pan Gasket for 2001 ...

www.2carpros.com/questions/2001-gmc-sonoma-oil-pan-gasket

Mar 18, 2011 - How to change oil pan gasket for 2001 sonoma, can i get away with just raising the engine two inches to ... 2001 GMC Sonoma • 4 cylinder 2WD Automatic • 150,000 miles ... You need to remove the engine to get the sump off.

Jack up truck for safety sake put jack stands under frame . remove all engine oil remove all bolts holding oil pan on if their is not enough room to drop pan you may have to remove bolts holding motor mounts and jack up engine. if front end linkage is still in the way remove linkage. pull oil pan out. check gasket that was between block and oil pan if any stuck to block of engine remove with gasket scraper or wire brush or wire wheel on drill.make sure mating surface is clean put new gasket on new oil pan I like to use a high temp sealer on gasket both sides. Put pan with gasket back in place of old oil pan and tighten all bolts. jack engine down ,replace moter mount bolts replace any linkage you took apart. and dont forget to replace engine oil. make sure oil plug is in pan before pouring oil in . before starting engine check that no oil is leaking than start engine and check for any leaks again if all is good your done. if this was helpful please leave good feed back. A good temp fix on a rusted oil pan is JB weld make sure no oil is on pan clean with towel and rubbing alchol .you may have to drain oil first. if it is rusted badly you may have to use a wire brush on a drill to clean the area to patch. if patched properly it may last for years.

You will need an engine lift remove engine mount bolts lift engine high enough to remove pan,or remove transmission

unbolt motor mounts and raise engine to clear crossmember

can be lifter going bad,rocker arm loose (once oil warms and thins out) can also be a minor exhaust gasket leak

sound like an internal engine problem. either one or more of the pistons has "piston slap" and that knocking will diminish as the engine warms up or possibly a rod bearing is worn out. have a tech do a manual oil pressure test to make sure the oil pump and main bearings are ok. piston slap or knock that decreases when the engine warms up is not that serious, but a rod bearing knock or possible oil pump failure should be taken care of asap.

Changing the oil pan gasket on a GMC Yukon XL is realtively simple, but does require removal of the exhaust pipe. You will need a new oil pan gasket and a new exhaust pipe flange gasket.
Put the car on ramps or jacks to access the undercarriage.
Remove the exhaust pipe by removing the 3 nuts holding the exhaust pipe flange to the exhaust manifold. These nuts often rust and prior application of penetrating oil may be required to remove them without damage. Once the pipe is unbolted, work the exhaust system loose from the hanging brackets. In most cases the entire system does not have to be removed since there is enough room to remove the pan with only the front hangers removed.
Drain the oil from the engine
Remove the 10 mm bolts holding the pan to the block.
Remove the old gasket material and scrape any remaining gasket from the block and pan.
Install the new gasket. Forma-Gasket or a similar product may be used in small quantities to "glue" the new gasket in place and prevent shifting while the pan is reattached to the block.
Reinsall the 10 mm bolts in a cross pattern to ensure the gasket is compressed evenly. Do not overtighten the bolts.
Replace the pipe to flange gasket between the exhaust pipe and the exhaust manifold with a new part.
Reattach the exhuast pipe to the hangers.
Install the 3 bolts connecting the pipe flange to the exhaust manifold.
Fill the engine with oil.

It is probably head gaskets - These need to be replaced.

No big job Really. Just locate your Drain Plug for the Oil. Thepan is right there, Remove the Bolts around the Pan and Remove. You will lose all of your oil so, Have something there to catch it all. Clean it all around the Edges of the Block where the Pan mounts with Degreaser and Make sure that you Scrape the Old Gasket off of Both the Block and the Pan. Run a Thin Bead of Blue ATV Silicone around the Pan Edge, Lay the Gasket on top of this Silicone. Put another Thin line on top of the Gasket and Reinstall. This Silicone is High Temp Silicone and will Seal Very Well. Make sure to put oil Back in the Motor! Please Rate my Response, I need all the Help That I can Get! Thanks!