P0027 and intermittent noisy top end

Hyeloque · Post by **Hyeloque** » 11 Feb 2018, 15:30

Hi there, I'm new to this forum and I'm seeking help as I'v been unable to find any solution to my problem, searched the whole web looking for answer though I was unsucessfull. I Have a 2005 s40 t5 with the b5254t3 engine and it seams that for about 5 minutes after my car as reached operating temp i get eccessive valvetrain noise, now this was a bit concerning but now I also got a p0027 exhaust valve solenoid. I'm leaning towards a light oil starvation on the top end. I'v had the camcover serviced so it might be that the guy who actually did it put on too much anaerobic sealant, thus blocking the oil passageways but before I dive in and redo it I want your feedback as I also heard of O rings in the oil pan going bad.

Post by **RickHaleParker** » 11 Feb 2018, 17:02

Check Oil pressure and quality first.

Possible source

Low oil pressure
Poor engine oil quality.
Sticking reset valve.
Mechanical fault in the variable valve timing (VVT) unit.

Hyeloque · Post by **Hyeloque** » 11 Feb 2018, 18:51

Oh yess i'l mention it now the oil is brand new and I ran an engine flush beforehand also I swapped the reset valve with a known good, i'l check my oil pressure tomorow