He did clear some build up out of the variable timing oil pressure thingamybob at the front & it ran so much better. And a diagnostic computer may erroneously blame this light on a mass air flow sensor or oxygen sensor instead, making it harder for you to detect the real source of the problem. To add to the problem, not all manufacturers stress the importance of regular system inspections. Please also check out the statistics and reliability analysis of the 2015 Chevrolet Cruze based on all problems reported for the 2015 Cruze. Question: I just got a new starter and intake manifold gasket repaired. When going slow it dies at stop sign. I have a 2012 Ford Escape 4x4 V6 with 56,000 miles on it – No major repairs (only 3rd brake light and lift gate glass hinges, repaired myself) but 6 months ago I noticed a trail of oil going up the driveway to where I parked my vehicle and a pool of oil underneath. You can check for the cylinder misfiring by unplugging one cylinder spark plug wire at a time, if possible. My pcv valve in my saturn is busted and spraying oil onto thermostast is that the reason for the overheating or is the reason for the busted hose because of the overheating in another area. Dan Ferrell (author) on January 31, 2017: Have you checked the valve? Check it every few months, to prevent gunk from accumulating, along with the connecting hose and the other connection. yeah it's fine now, though there's a little roughness sometimes. Hope this helps. The PCV won't throw that code. Another possibility is a damaged or scored crankshaft surface-sealing area. Dan Ferrell (author) on September 10, 2018: My car consumes excesive oil, and sometimes appears in display the message: stop!, oil pressure too low. Answer: There could be a problem with the heater control valve or the controls, not letting the valve opening all the way. What do you think, maybe its the famous PCV valve? Rubber components like grommets, O-rings, and hoses swell and turn hard and brittle after constant exposure to high temperatures. it sure sounds like the pcv is a problem, but is it possible that there is just too much vacuum from the engine and its overwhelming the pcv valve? Number 5 cylinder is not firing. a little smoke came out of the pcv valve while i did this. Answer: Most are designed as a check valve to prevent the valve from flowing back, for example, during a back-fire. If you don't feel vacuum at your fingertip, check the valve and hoses for gunk obstructing air flow. If you have this type of valve, just clean with lacquer thinner, if necessary, and reinstall. Go over the post, you'll get an idea about checking the valve, if necessary. Hi Dan, nice article! Dan Ferrell (author) on January 07, 2019: This is usually caused by problems with an oxygen sensor, leaking exhaust manifold, retarded spark timing, leaking fuel injector, oil contamination, and misfires. It does not start, but on the second attempt, if I pump my accelerator while turning the ignition it will start. You may need a length of hose to try to locate the source of the sound. Check for ignition coil, spark plug, wire, fuel injector as well. If i remove the pcv valve from the valve cover and have the engine running at idle speed the idle works fine, but when i reinstall the pcv valve the surging idle comes back. Coolant leaks caused problems requiring that the thermostat housing be replaced. I recently replaced my 4L ford ranger rear main oil seal as i noticed some leaks coming between the engine block and transmission,and there was some sludge in the oil cap of the engine,but after some mile it started leaking again but a small amount,,,could this be the cause of the PCV valve? Can I route the hoses from each valve cover (one with pcs valve, one without) to a single vacuum port? Some suggest servicing the system every 20,000 or 50,000 miles. Internally, this is a very corrosive substance that can damage internal components. I accidently broke the PCV on my car,1989 toyota 4fa, stupidly though. You may need a small mirror, something like a telescoping round mirror. Answer: First make sure there's a good connection; there could be too much internal pressure, or a problem with the seals or leaks. You'll feel vacuum from the system sucking at your fingertip and notice a momentary idle speed drop of about 40 to 80 rpm. Question: Can a bad PCV cause no vacuum in the crankcase? GMC C3500 with a 7.4L engine. Too much fuel is going through the engine. By Ken Burgess. Answer: It can certainly make it hard to start; if it sticks open it may lead to a no start. Check your local auto parts store or Amazon, online. Question: Can a stuck/closed PCV valve cause oil to leak into the intake manifold? It should rattle. Diagnostic codes P0171 and P0174 are common when there is a problem with the PCV valve. Designed with durability and longevity in mind, these tried and proven kits are reliable, effective, and long-lasting fixes for the common PCV check valve failure. The PCV valve is typically found in the engine valve cover. Yours probably has some leaking valve stem seals or something similar. I also know the 2016 and older Cruze has the PCV built into the cam cover but the 2017 and up are a single piece PCV. It’s on a 2007 BMW 328xi Wagon. I will look in to the Throttle control. friends say it's the pcv valve. There are two ways to make money from selling classic cars. how would i test for a leak at the manifold and its gasket? It works great in old Fords. In Corolla 95 Engine 4AE 1.6 EFI, when i change the PVC Valve? It could become an expensive fix later on. Answer: If the valve fails, pressure can cause acid vapor through the breather element. It is amazingly fun to drive and the fuel economy is a wonderful added bonus. This could fix the misfiring issue. This may push oil into the combustion chamber and burn the oil, which you'll see as blue smoke. there is some oil in the pcv valve. Can a PCV valve cause this error? the clean air intake is not clogged. Some Vulcans came with it to prevent cold weather from freezing the valve. I have a 2012 Chevy Cruze (only owner) and it is rough idling and seems to run sluggish. Hope this helps. Average failure mileage is 67,000 miles. Answer: The PCV won't cause braking problems. Come to think of it, there have been several moments over recent weeks where its 'spluttered' and the EPC light came on, but was fine after stopping & starting... Back to last night; the time between splutters/noticable lack of power grew shorter and then, as I pulled in to a car park it coughed, tried to die, and then did. 2014 chevy cruze. Are you tired of shelling out your precious ducats for an oil change every month? 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