'07 PCV Upstream ? - North American Motoring


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'07 PCV Upstream ?

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Old 04-12-2018, 11:46 AM
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ioannes79 ioannes79 is offline
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'07 PCV Upstream ?

Is this much condensation normal? Believe my engine is on its way out, but can't nail it down with my experience. I've also noticed oil pooling on top of cylinders 3 & 4. This is to my catchcan, and yes, I need to use different hose.

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Old 04-13-2018, 07:47 AM
MiniToBe MiniToBe is offline
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never seen it like this!

are you loosing coolant?
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Old 04-13-2018, 10:09 AM
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never seen it like this!

are you loosing coolant?
Yes. Thinking from the crossover pipe since the third thermostat replacement, but have been questioning that too.
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Old 04-13-2018, 10:11 AM
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Can anyone tell me where my compression should be? I'm pulling 140 to 190 wet .
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Old 04-14-2018, 04:36 PM
jcwcoopster jcwcoopster is offline
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My My My that is not normal!!! Might be time for that engine overhaul. If compression is good then you might just need head work only.
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Old 04-14-2018, 07:46 PM
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kind of looking like coolant is getting in there !!
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Old 04-14-2018, 08:42 PM
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Tripped limp-in with a knock sensor at 70 while passing. AFR peaking at 29.4 and generally at 14.74... Shop time, me thinks .
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Old 04-15-2018, 06:29 AM
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29.4 dang your lucky it didn’t go boom !
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Old 04-15-2018, 04:46 PM
Tigger2011 Tigger2011 is offline
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A leak from the crossover tube wont cause knock codes but a head gasket starting to fail can cause coolant loss (burned during cruise) and cross pressurization (in boost) leading to lean AFR's. A bad valve cover allowing oil into the intake track will cause knock. How many miles on the engine? Has the valve cover been replaced? How long ago.
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Old 04-15-2018, 10:05 PM
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A leak from the crossover tube wont cause knock codes but a head gasket starting to fail can cause coolant loss (burned during cruise) and cross pressurization (in boost) leading to lean AFR's. A bad valve cover allowing oil into the intake track will cause knock. How many miles on the engine? Has the valve cover been replaced? How long ago.
Crossover isn't leaking. The valve cover was replaced a little over a year ago. I switched the OCC from the downstream side to upstream as it didn't catch anything in the six months it was on that side. Two months on the upstream side and it's 75% full.
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Old 04-16-2018, 04:54 PM
Tigger2011 Tigger2011 is offline
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Well damn. Sounds like it might be about time to roll up the sleeves. The good news if you do most of the work yourself is that a cylinder head shop will probably only charge you about $350 to replace the seals and do a valve job. Had a head done for a friend not to long ago and thats all they charged. YMMV though.
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