tripnotic19

does anyone happen to have a pic of the routing for the heater core hoses??? mines been dissconnected and one of the hoses is plugged w/ no evedince of where the other line is.....i see the two connectors on the core...i have an 85, z28..

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z28kubacak

will someone with some input please respond!!! ive got the some problem only in an "86 z28, someone cut all the hose and rerouted a few... ive no idea of where they should be! please help!!!

InfernalVortex

It's not really hard. If you want to use the stock style hoses grab some from a junkyard with the diverter valve.

Otherwise you can just run a hose from any port on the motor (usually on the intake somewhere) to the heater core, and then the other hose to a return fitting on the radiator.

Check the radiator for a fitting and look for a plug on the intake.

And my heater core was bypassed for this pic, but you can still get an idea of what the stock routing is like. Notice the fittings in the intake and the hose running down to the radiator. You dont really need a diverter valve though.



And chances are they cut and rerouted the hoses because your heater core is bad. Just an FYI. Be prepared to replace the heater core.

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blacksunshine'91

I have the heater hose diagram. If somebody wants to host it, I'll send it to them. I get about two PMs a week asking for it.

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'91 GTA w/C&C T-tops, ENG: TPI 350 w/GMPP vortec heads, 52mm TB, AS&M runners, Edelbrock exhaust & ceramic coated headers. TRANS: Pro-Built 700R4. SUSPENSION: Jamex springs, Hotchkis LCAs & panhard rod, Global West SFCs & Del-a-lum bushings, Baer front brakes & bumpsteer kit, BMR 3-point STB, Spohn strut towers & torque arm, TDS wonderbar, KYB AGX shocks & struts, ES poly bushings. RIMS: Edelbrock 409's. Currently undergoing complete Phase Insp (Those in Naval Aviation know what I'm talking about).