blue smoke!!

[2GFWDbeast]

So i did a boost leak test on my 97 gst and not sure if there is suppose to be air leaking out of valve cover but there is. so after doing it started the car and blue smoke was pouring out of exhaust. Went for a drive wot ton of blue smoke came out but after a few miles it went away. Did one more leak test to see if anymore leaks which there is leaks out of valve cover. Now it keeps coming out blue smoke when driving leaves a trail behind my car.I replaced pcv and did a compression test and it was 190 190 180 180. Any ideas!! Car drives good doesnt idle rough or knot at all. vacume pressure on boost gauge is like 21 at idle. My car never blew any smoke out of exhaust til today after several boost leak tests

 

[nate_boosted]

How much pressure were you using when you did the test? Where exactly is it leaking? Is it coming out the pcv valve or around the seal? The blue smoke may be from a blown head gasket.

 

[2GFWDbeast]

leaks out of the valve that circulates back to the intake on the valve cover. only pressurized it to 20psi

 

[x573275x]

Does it Smoke all the time while driving, or just when you stop and go (like at a red light)?

 

[2GFWDbeast]

all the time now. idk it just weird cause my car never smoked at alll and now i do a leak test and now it smokes

 

[nate_boosted]

Yeah thats the pcv valve (positive crankcase ventilation). It just vents any air/gasses that get into the crankcase past the pistons. You might have bad valve seals. Also during the boost leak test you probably pushed some oil into the engine. Take off your lower ic piping and look for oil. You might have bad turbo seals.

 

[2GFWDbeast]

ya thats what my friend said cause i did several boost leak test to figure out the leak locations he said i might have pushed out and the blue smoke is the oil burning off. The turbo seals are good no oil anywhere

 

[BGuinard]

I had a similar issue not after a test though... my turbo just went.

 

[2GFWDbeast]

Ya I checked everything and is good my friend told me most likely oil pushed threw And is burning off

 

[nate_boosted]

Yeah just drive it and it should go away. Are you using any oil? Keep in eye on your oil level. You might wanna figure out were that oil is coming from.

 

[dsmspoolin]

I don't think it's valve seals. If it were then you would have smoke building up on idle and clear out of the exhaust when accelerated.