I see that my front most belly pan has accumulation on it and I just cleaned it 2 months ago (thought nothing of it figured mess from oil change or top up. I do notice there is oil leaking from front of engine as I can see when underneath the car flowing down onto oil pan from above dripping onto belly pan, no apparent oil leak at rear. It eliminated the squeal but It did not help the problem, still suction on oil cap. Check out our leaking head gasket symptoms and. My old one was beige but had no suffix where as the new one is also beige but has suffix AE. The answer is yes as a blown head gasket leads to coolant infiltrating the cylinders and causing misfires. CRACKED HEAD,CRACKED BLOCK, OR TIMING CHAIN HAS RUBBED HOLE IN BACK OF TIMING COVER. He doesn't know about reflash and crank case seal service department is busy so I cant ask if that's been done on mine /rebates/2farticle2fp0306-obd-ii-trouble-code-cylinder-6-misfire-detected-by-jay-safford&. PUT WATER IN RADIATOR AND IT GOES INTO THE OIL PAN. This is after I cleared all codes and started it up after examining coilsĬar currently has Beige PCV and parts guy says I need one ending in AE. There is not a lot so possible that the pcv broke and did that in the short time it was run.Īs an aside plugs were changed 30k ago and car has original coils (only changed one so far to newer all silver style oem – others are black oem) I did notice that there is a bit of oil in 2 of the cylinders. Generally, such failures were due to a lack of maintenance, which led to viscosity breakdown of the oil and sludge build-up. I checked to ensure the harness was clicked in and it is. the Front Timing Cover, Rear Crankshaft Main Seal, Front Crankshaft Seal, Valve Cover Gaskets. Later that day I swapped cyl 4 coil around cleared codes and started car and it now runs worse, to the point of nearly stalling and codes read misfire on all cyl/random misfire. When I called Audi previously about my pcv they said “oh your car already has the updated one – it came in for pcv service before” Going to replace it but which revision should my car have as I’ve read conflicting stories that black is the update one. My car currently has the PCV valve with the clear portion (no "XX" letter suffix). I took the oil cap off and there is suction pulling the cap back down and also on the hole in the pcv there is suction as well there. It sure looks like it could have come from the water pump but the pump is not making noise and when. The ignition coil’s job is to turn the battery’s low voltage into high enough voltage to pass to the spark plugs to create combustion. I notice its rough like a misfire so I accelerate off the line and get a flashing CEL and I now hear a whistling noise which sounds like air squeaking by thin rubber like a balloon so I’m thinking PCV is bad. I am happy to say it is not the timing chain cover leaking. Ignition Coil Failure VW 2.5 Engine To no surprise, ignition coils are at the top of the list of issues. I creep out of my neighborhood and get about 10 mins away when I notice My idle is abnormally high, like 1100rpm, when it should have settled by now. I have a 2010 A4 2.0T and Just finished doing the WG replacement as car was running great for about a week holding 12psi, peaking a bit more.
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