Question about Cars & Trucks
Sounds like a plugged PCV valve and/or hose. Or the hose could have a restristriction like a sharp bend in it that's not allowing the free flow of air.
Posted on Sep 24, 2017
SOURCE: 2004 5.3 tahoe, Mobil 1
shouldn't be plugged if you use mobil 1 and have changed regularly. Do you actually see drips/runs anywhere? It could be the valve cover gaskets themselves. Your best bet is to get the factory service manual which will give you everything in detail that is what the dealer mechanics use
Let me know if you need any further assistance.
Posted on Jul 18, 2008
Make sure the PCV port to the mainfold is not plugged and correct PCV is installed. This may be why the gasket is not maintaining a seal. Also look for cracks in the valve cover. And make sure it is not bent, and you may have to peen back the areas around the bolt holes as they are likely distorted at this poing.. Spreader washers are a really good idea. Stick to factory torque specs.
RTV may cause other problems because people often use way to much of it.
Posted on Jan 23, 2012
Take the sender unit out and put in a gauge to see what the reading is
Posted on Jun 24, 2016
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