WebMay 28, 2012 · A bad PCV can cause the engine to be pressurized internally, thus forcing oil out of important seals. This can cause a white/blue smoke from your tailpipe when … WebApr 18, 2007 · Yes a bad PCV valve will make your car smoke. The valve guide is basically what the valve goes through in the head to control oil and it acts as a bushing. Really …
Exhaust Smoke! Bent Valve? Bad PCV? How to do a Leak Down …
WebFeb 6, 2024 · A bad PCV valve can cause a vacuum leak. The symptoms of a bad pcv valve are hard starting, rough idle, and poor fuel economy. The engine would behave as though it had a vacuum leak if the PCV valve did not control air flow. The engine will lean out [too much air in proportion to the fuel] and misfire if there is too much air in the intake. WebMar 14, 2013 · A bad PCV valve can cause the oil to get sucked into the intake, so defiantly replace that. A compression test does not always find internal oil leaks. You might have a problem with worn valve guides. To more accurately find worn valve guide problems, you should use a vacuum gauge. normal size sinus of valsalva
Causes of Blue Exhaust Smoke - MyCarSpecs United States / USA
WebJun 26, 2004 · Could a bad PCV cause white smoke out the exhaust? ( GA16 ) ... a SLIGHT oil consumption can produce whitish smoke. a bad oil problem will definitly have blueish smoke . Save Share. Reply Quote. S. ... I cleaned the filter and PCV valve and.....NO MORE SMOKE!!! 2 days have gone by and no smoke!!! ... WebAug 5, 2024 · A bad PCV valve can cause the idle RPM to get too high and unusual idle behaviors like very rough idling. READ MORE. Rough Idle When Warm: Troubleshooting Engine Problem; Car Shakes When Idle … WebApr 13, 2016 · Generation III Internal Engine - Bad PCV valve causing oil to blow out rear main seal - I have a 99 LS1 in an 89 Mazda RX-7. I rebuilt the engine about 5000 miles ago for nitrous. The ring gaps were set for a … how to remove sidebar in bing