07 escalade p0300 and stabilitrac light on running rough

[rcsnipe2000]

so, i dropped it off at a shop yesterday afternoon. i got a call this morning about 9 saying. it has 0 compression on #6

i have a hard time believing i am getting 160 psi on #6 and they are getting 0psi. so i picked it up. i personally dont think they even did the test.

 

[rcsnipe2000]

ok, so today i did another compression test to find it at 0!!!

so back off with the valve cover and sure enough! a broken spring on a ex. valve #6!

so im off to find a valve spring!!

any chance the valve is bent? anyone been here?

i took another look with a bora scope and best i can see there was no contact unless its in a area i couldnt see.

 

[89Suburban]

ok, so today i did another compression test to find it at 0!!!

so back off with the valve cover and sure enough! a broken spring on a ex. valve #6!

so im off to find a valve spring!!

any chance the valve is bent? anyone been here?

i took another look with a bora scope and best i can see there was no contact unless its in a area i couldnt see.

@iamdub

 

[rcsnipe2000]

replaced the valve spring and all is good again!

thanks fellas!

 

[89Suburban]

replaced the valve spring and all is good again!

thanks fellas!

Awesome sauce!!!

 

[Geotrash]

You dodged a bullet! Well done!

 

[donjetman]

replaced the valve spring and all is good again!

thanks fellas!

It may be time for all new valve springs?

 

[Geotrash]

It may be time for all new valve springs?

+1 to this. There are lots of examples of 2007 6.2 L braking valve springs. It would be wise to replace them all in my opinion.

 

[Rocket Man]

It may be time for all new valve springs?

Exactly. I believe there’s a known issue with the springs on that engine as @Geotrash mentioned. If one broke and you got lucky, I wouldn’t just count my blessings because if another breaks your luck will probably run out. That can do a lot of damage quick.

 

[donjetman]

I guess should change mine too then? 182k miles and climbing on our L92.