The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - smoke on de-acceleration

TB6587 · 12-28-2003, 12:18 AM

Hi all,
Recently I noticed my 65 GMC puts out a puff of blue smoke de-acceleration. Like when I let off the gas to shift. She runs pretty good. Plugs arnt fouling. I just happen to be looking out my side mirror when I shifted today and noticed it. Is this a sign of worn rings or what? Just wondering how concerned I should be.

Thanks,
Tim

12-28-2003, 12:18 AM	#1
TB6587 Registered User Join Date: Nov 2003 Location: Washington Posts: 6	smoke on de-acceleration Hi all, Recently I noticed my 65 GMC puts out a puff of blue smoke de-acceleration. Like when I let off the gas to shift. She runs pretty good. Plugs arnt fouling. I just happen to be looking out my side mirror when I shifted today and noticed it. Is this a sign of worn rings or what? Just wondering how concerned I should be. Thanks, Tim