Question about 1999 GMC Jimmy

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I need to change my oil pan gasket on my 4.3 1999

I need to change my oil pan gasket on my 4.3 1999 GMC Jimmy. Is there anything I need to unhook to do this?

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Motor mounts some front end parts if 4x4 front drive shaft oil filter and misc hoses not an easy job in driveway

Posted on Sep 29, 2009

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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.

Nov 28, 2015 | GMC Cars & Trucks

1 Answer

How do you change oil pump in 89 gmc 4.3 v6 s15 jimmy


I'm going to simply "spitball" an answer because i don't know WHY you think you need to change the oil pump.

1st, IF the oil pressure gauge isn't showing any pressure, or low pressure, AND there is no engine noises such as knocking or loud tapping, I would suspect a faulty oil pressure sending unit. IF there's a deep knocking sound then an oil pump isn't going to solve the problem. That is UNLESS it turns out to be what I ran across on a 1991 S10 4x4 with a 4.3. There was a "knocking" sound which I traced to the cover plate of the flywheel/flexplate. Turned out to have a cracked flexplate. Changed it and all was good.

I have a 1985 GMC that showed low oil pressure, yet there was no noises coming from the engine to confirm low oil pressure. I changed the pressure sending unit and it fixed the problem of "low oil pressure".

Now IF you're dead set on changing the oil pump, get ready because it isn't a 10 minute job.

You'll more than likely have to at LEAST raise the engine somewhat as (I'm guessing it's 4x4) the oil pan has a deep sump area for the oil pick up. This is so the oil pan can be shallow in the front area to clear the front differential and cross frame area.

Then you get to try to wiggle, twist, wiggle some more, the oil pan out from between the bottom of the engine/crankshaft, and the cross member of the frame AFTER removing all of the bolts that hold the oil pan in place.

IF it were me, I'd be almost inclined to simply pull the engine, at least part way out of the truck, to gain better access to the pan. AND you wouldn't be fighting trying to keep the oil pan gasket in place while doing the wiggle/twist putting the pan back into place.

Hope this helps.

Feb 19, 2015 | 1989 GMC S-15 Jimmy

1 Answer

How do i remove oil pan for 1998 gmc jimmy 4.3?


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

Aug 31, 2014 | 1998 GMC Jimmy

1 Answer

1997 JIMMY LEAKS OIL FROM BOTTOM OF FRONT ENGINE. LEAKING TRANY FLUID AS WELL


It sounds like you need to replace your oil and transmission pan gaskets. I hope this helps and if you have any more questions please feel free to ask.

Sep 19, 2011 | 1997 GMC Jimmy

2 Answers

Where is oild filter on 2000 GMC Jimmy


After you have the hood open, locate your oil cap and remove it to release any pressure in the system. For the next part you will need a flat head screw driver, a socket wrench and set of sockets, and an oil pan or something to store the used oil in.

Begin by sliding the oil pan underneath the truck and back. Because your GMC Jimmy has higher suspension there should be no need to lift the suv up on jack stands. Lay on your back and slide underneath until you are about midway underneath. Locate the oil pan, and the oil pan plug. The plug will look like a small bolt head. Position the oil pan underneath the plug. Next, taking your socket wrench and, using the appropriately sized socket, loosen the oil plug and remove it. At this point you may get a little dirty because the old, used oil will come out.

After the old oil has finished draining put the plug back in, but only tighten it down hand tight. Next move forward under the vehicle until you are just below the front bumper. There will be a small black door at a horizontal angle with a screw holding it in place. Taking your flat head screw driver twist it until the door swings open.

Now you have access to the old oil filter. To remove the oil filter reach in and twist it counter clock wise. If the oil filter will not move with your hand try using a piece of light grit sandpaper for extra grip. You may need to purchase an oil filter wrench.

After removing the old oil filter take the new filter from its box, ensure that the black rubber gasket is in place at the end of it and rub a small amount of the old oil around the gasket. This helps to ensure that the new gasket will seal to the car. After tightening down the oil filter close the door.

Hop helps.

Dec 29, 2009 | 2000 GMC Jimmy

1 Answer

Oil in the rad


If it's brown, you have a blown head gasket and most likely there is coolant in the engine oil pan as well. If the oil is red, it's transmission fluid leaking internally from the cooler...Radiator needs to be replaced and trans oil needs to be changed. You should not drive or run the engine with either condition.

Oct 02, 2009 | 1995 GMC Jimmy

1 Answer

Found radiator fluid in motor oil. Oil looks like a chocolate shake. Hoping its only the intake gasket. Must the oil pan be removed to ensure all water is out of the engine?


No, you can flush system with oil after doing repairs. Just ad oil as you would normally do on service then run car for 30 mins to hr then dump oil and change filter. Should be fine. Yes hope that it is a intake gasket.

Sep 10, 2009 | 2000 GMC Jimmy

1 Answer

Transmission oil leaking


Out put seal.leaking.allso check the pan gasket.

Jun 11, 2009 | 1999 GMC Jimmy

1 Answer

Need to change oil pan gasket in a 1998 GMC Jimmy 2 wheel dr 4.3


On many vehicles the exhaust runs under the oil pan, on others there may have a cross member in the way, or brackets that will hinder oil pan removal. These parts need to be removed. The exhaust nuts/bolts will most likely be rusted. It is best to spray them with penetrating oil. You can use WD-40, PB Blaster, Deep Creep, or something similar. After you have sprayed all of the nuts/bolts, let the penetrating oil soak in for about 10 minutes. Now remove the exhaust pipe that runs under the oil pan. The catalytic converter may, or may not be in the piece that you have to remove. If you have to remove a cross member, simply unbolt it and set it to the side, it is best to mark which side is the front, as some will only go on one way. Other than that, you should not have to pull the engine at all.



please rate this response and god bless.

Mar 16, 2009 | 1998 GMC Jimmy

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