Exhaust Temp Valve on Pass side Exh manifold? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70GMC396 · 05-08-2006, 02:45 PM

I have a huge exhaust leak from an exhaust fresh air inline valve connected to passenger side exh manifold. WTH, looked in manual and says only existed in 1975 Mark IV system and 6 cyls??? Do any of you have this on a 70?

70GMC396 · 05-10-2006, 04:22 PM

Looks to be an aftermarket "heat riser exhaust valve." Came on different brand vehicles. maybe a dealer added device? Guess I should probably just loose it. Any advice?
Thanks

05-08-2006, 02:45 PM	#1
70GMC396 Registered User Join Date: Apr 2006 Location: 93420 Posts: 98	Exhaust Temp Valve on Pass side Exh manifold? I have a huge exhaust leak from an exhaust fresh air inline valve connected to passenger side exh manifold. WTH, looked in manual and says only existed in 1975 Mark IV system and 6 cyls??? Do any of you have this on a 70?

05-10-2006, 04:22 PM	#2
70GMC396 Registered User Join Date: Apr 2006 Location: 93420 Posts: 98	Re: Exhaust Temp Valve on Pass side Exh manifold? Looks to be an aftermarket "heat riser exhaust valve." Came on different brand vehicles. maybe a dealer added device? Guess I should probably just loose it. Any advice? Thanks



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.