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PB Blaster in the engine bay?

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5.6K views 5 replies 5 participants last post by  tydg94_L  
#1 ·
My PCV valve is basically seized on and im planning on using some PB blaster to get it lose. My question is, is it dangerous to use pb blaster in my engine bay? I know its flammable so is the heat from the engine something i have to worry about?