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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: tigwelder on February 18, 2011, 10:37:27 pm

Title: thermostat housing ?
Post by: tigwelder on February 18, 2011, 10:37:27 pm

1985 K20.what is the plastic manifold  with 6 hose plug In's on thermostat housing called? what hose,s go to it?anywhere on web i can find pictures of emission hose routing.po changed heads and never finished hooking everything up.

Title: Re: thermostat housing ?
Post by: 1979C20 on February 19, 2011, 03:50:23 am

I believe its a ported vacuum switch, I can snap a picture of my vacuum routing sticker under my hood in the morning.

Title: Re: thermostat housing ?
Post by: Irish_Alley on February 19, 2011, 04:31:36 am

http://forum.73-87chevytrucks.com/smforum/index.php?topic=5087.0

Title: Re: thermostat housing ?
Post by: tigwelder on February 19, 2011, 08:00:34 am

thanks for the pics and help. the guy i got truck from replaced the heads and said he pitched  some of the emission hoses.so i guess i won't be fixing any of that stuff.