Coolant in the oil 1998 chevy truck vortec

Troubleshooting a Blown Head Gasket (GM 4.3L, 5.0L, 5.7L)

troubleshootmyvehicle.com > GM > 4.3L, 5.0L, 5.7L

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.

Chevy Blazer Coolant Leak (Intake Manifold) - YouTube

? 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 ...

Chevy 4.3l v6 oil leak issue 2001 Xtreme Blazer - YouTube

? 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.

You have to reove the upper plenum. that is the part on top of the intake that looks like a dome on top of the lower intake.There is 8 10mm bolts around the outside of the dome part. the disconnect the fuel lines at back of lower intake and remove the cpi unit.

I averaged 9-10 MPG in my 98 w/5.7 l vortec.
cap, rotor, plugs, wires, O2 sensors, fuel filter, and fresh air filter are the best way to peak MPG's

the computer can not set the timing if the distributor is off or if the timing chain off

TPS probably not cause surging idle. Could be IAC motor, could be MAF sensor. If you dont have a check engine light I would be thinking IAC motor.

next step is to remove the intake, you are on the right track, worse i ever found was a cracke block, but that was in a 61 t-bird which was repaired with jb weld ten yrs ago and still holding, but the intake gasket sounds right

Not good my friend most or all of the coolant should be gone by now. sounds like you might have a hairline crack alowing antifreeze to newly enter your crankcase. Antifreeze in an engine for more than 100 miles turns into a creamy foam that exits your drain plug. and if the engine overheated and stalled out definitly. sorry Man.

You need to put pressure on the coolant system and look for the leak. If you are lucky you can find the coolant leak by following the coolant trail. It could be a head gasket, intake gasket, or coolant sensor near where you say, but take a good look to try to round it down.

The freeze plug you replaced was due to rust or was it pushed out by freezing temperature? These plugs are not designed to protect the engine block from cracking during freezing temperatures, they are there to remove the sand from the block after casting it. I would drain your system completely and flush out the radiator thouroughly and fill with plain water, then run the engine and see if oil gets in the water, if it does and the plug was out due to freeze, then your block is probably cracked, although you could just have a head gasket leak. Oil pressure (40psi) is higher then water pressure (17psi), so getting oil in the water is always more prominent than the other way around. Flush out the system and let me know if oil returns to the water, hope this helps

THIS SOUNDS LIKE YOU ARE TALKING ABOUT EGR PIPE. AND NO IT WONT CAUSE COOLANT