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Showing results for tags 'blue smoke'.
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Hey guys and gals, Long time creeper, first time poster. I currently have a 2011 silverado 1500, with 163,622 miles on it. It's a 5.3 vortec engine. It smokes from the exhaust a light blue exhaust that's mixed with a grey/white exhaust. It stops smoking after roughly 10 seconds of running. Haven't noticed it while driving. It also doesn't smoke every start-up. It rough idles when in park. I replaced the plugs and wires a couple weeks ago, and I started misfiring on cylinder 8 after the change, before the change it was cylinder 5. The only codes it's thrown is for the misfiring. I also pulled plug 8 after the codes to check it and found oil on it. I did a combustion gas leak test and the liquid stayed the same color (blue). I'm starting to lose my mind. Any thoughts, suggestions to try? Also, as of now....I've noticed no loss in power at the moment.
NMaineCustoms posted a topic in 1999-2013 Silverado & Sierra 1500I am wondering if anyone has any thoughts for me . I have a 2005 Silverado with a 5.3L with a garrett 90mm turbo. I bought the truck about a month ago on ebay from Arizona. drove home fine and has worked perfect up til the past week. all of the sudden I started getting oil out through the pcv line on LH valve cover and higher than normal oil psi. so I thought that maybe it just needed another oil change ( 2600 miles on oil). so last sunday I went to Sears and had a synthetic oil change done and now the engine is smoking like crazy. the oil was being pressurized by compressor on the Magnum Turbo that was on it and eventually destroyed seals in turbo. thought that it may have been just a bad turbo so I installed a new Garrett 90mm turbo today which is running 8psi boost. the turbo works fine but still getting oil in combustion chamber and still coming out of pcv line and drenching engine bay. any suggestions?