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Mar 28, 2011 - There are so many ways to test for a blown head gasket on your 4.3L, 5.0L, 5.7L GM van (or mini-van, pick up, SUV) that it can get confusing.
? 4:33
https://www.youtube.com/watch?v=SC4VXdt5wiE
Oct 9, 2013 - Uploaded by eyetotheworld
I have localized a coolant leak on my 2003 Chevy Blazer to thegasket of the intake ... Turns out that this is common among this particular engine both in the v6 & v8 sizes. ... The guy has been generous to detail his projects. ... 98 S10 Vortec V6 4.3 IntakeGasket Replacement Part 1 of 5 - Duration: 18:17. by ...
? 6:11
https://www.youtube.com/watch?v=Y8Ogd5voIYs
Nov 12, 2011 - Uploaded by smiatacz
This darn little engine just keeps going. ... I have a 2003 chevy blazer and the oil cooler line from the oil filter to ... I have a 95 Chevy s10 v6 vortec 2wd that is slightly dripping oil out of agasket ... I'm having same problem 2001 Chevy Blazer 4x4 (not xtreme) not sure if those same bolts are missing on mine.
well the oil filter should be located on the rear and to the side of the engine, unless it has an oil cooler then it could possibly be somewhere near the front bumper
Hi. You might need to Replace the oil pan gasket is the oil is leaking. Here's the procedure on how to Replace the oil pan gasket.
1. Jack up the front end of the car and slide a jack stand under the vehicle. Make sure the jack stand is securely in place, and then put blocks in front of the rear wheels to keep them from rolling.
2. Slide under the car and put a drain pan under the drain plug of the oil pan. Loosen the drain plug with a socket wrench and allow all of the old oil to drain into the pan. Remove the old oil filter.
3. Disconnect the negative battery cable and remove the dipstick and its housing. Remove the collar on the rear of the oil pan. If the vehicle is equipped with engine oil cooler lines that lead to the oil pan, remove them as well, along with transmission oil cooler clips.
4. Remove the bolts holding the oil pan, and carefully remove the oil pan. Remove the old gasket. Scrape it with a putty knife if necessary, but be very careful not to scratch the surface.
5. Wipe out the oil pan with a clean cloth or paper towel, and wipe the joining surface of the oil pan with cleaning fluid or solvent. Apply a thin bead of automotive sealer and install the new gasket.
6. Replace the oil pan, tightening the bolts securely. Replace the transmission oil cooler clips, engine oil cooler lines, oil pan collar, dipstick housing and dipstick, and reconnect the negative battery cable. Install a new oil filter.
7. Take the car off the jack stand and fill the engine with the appropriate amount of SAE 10W-30 or SAE 5W-30.
have to see if the oil pump strainer is clooged...oil ports clogged??? was the motor taken care of...valve covers loaded up with sludge??? pan comes off the rest is to be looked at...if she was run on no oil pressure I sure would be suspect of this motor being in poor condition. Does it run???? Is it knocking?smoking? banging or clunking? if not put a gauge on the oil pressure sending unit hole and see if it really has no oil pressure or perhaps it has a bad sender?
Just plug one port on the engine oil cooler, and use a hand vacuum pump to put the cooler under vacuum, see if it holds, if the vacuum leaks out you hahe a leak. In the event you do not have/ can not get a vacuum pump, you can plug one port on the cooler, and put about 15 psi of compressed air in it, submerge the entire radiator in water, with the cap and hose ports open if you see any bubbles the cooler is leaking.
This is probably a head gasket problem and not an oil cooler problem.
The oil cooler is fairly easy to test.
Remove the cooler from the engine but do not disconnect cooling lines and then pressurize the cooling system. You can use a radiator test tool to put pressure on the cooling system and look for leaks. If it leaks, replace it.
You may also be able to bypass the oil cooler altogether if it leaks.
The head gasket is another story.
Get a 1/4" pipe to spark plug fitting and put a male air coupling fitting in it.
Then you can charge the cylinders with air from your compressor.
Make sure each cylinder that you test is at top dead center so that the valves are closed.
If air bubbles into your coolant, you found your problem.
If air leaks out your intake you have a bad intake valve
If air leaks out your exhaust you have a bad exhaust valve etc.
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