Can you please provide a comment and/or a best-guess cause of the following complaint: Smoke at cold start (white-blue) that occurs approximately every second or third day. If you have a burnt valve issue, you will experience how the engine will be down on performance and work on 6 cylinders if you are running a V8, for example. What are the Effects of Retarding Ignition Timing you Must Know! Learn how to find faulty seals and what you can do to avoid these issues. 1. The car engine is often susceptible to holding a steady low, idling RPM. The whole engine will fail at some point if its left to run like this for a period of time. Excessive oil consumption is also another of the symptoms of bad valve seals. This blue or sometimes even black smoke is coming out from the exhaust pipe. Required fields are marked *. First, locate the valve stem seal that is leaking. Together with the tell-tale blue smoke, if there are not any apparent oil leaks on the skin of the engine or on the pavement, youll be able to assume oil is moving into one of many combustion chambers and is being burnt off from there. Determine if your check engine light is on. Normally, the oil leakage is attributable to extreme put on of the oil management (scraper) piston ring. Damaging the valve stem will make the repair much more expensive. This can either be caused by a leak of the intake valve seal, which causes the engine to consume and burn oil inside the combustion chamber. How to Check Valve Stem Seals & 6 Signs They're Leaking - Global EEE Chevy Check Engine Light Flashing Then Stops [Fixed], Blacked Out Headlights | Blacked Out Tail Lights Legal? So why is this the case? How long can you drive with worn valve seals? [Expert Guide!] that's what I'm thinking but why are there people saying like I can keep driving without much problem? should I stop driving the car and fix it immediately or can I just keep driving for some years? This measures the quantity of compression buildup in every of the cylinders. You will want to invest in top-tier solutions that are free of defaults. Wouldn't it just clog your cats eventually? Mobile Oil Company has a good overview of the leak down test. However, the parts are cheap, and it doesn't require any special knowledge. The valve seals prevent oil from entering the combustion chamber. If you notice bad oil consumption together with any of the other symptoms here, it is a good time to give your car to a mechanic for a look. After installing all of the valve seals, you can reassemble the head. In this case, a thorough inspection has to be done to the engine for the bad valve seals to be diagnosed and replaced altogether. Leaking rings or valve seals can also be contributing to your car losing oil. Why is this the case? However, the parts are cheap, and it doesnt require any special knowledge. Its not an easy process. Can you drive a car with a bad valve cover gasket? - Quora Worn valve seals or dangerous piston rings?