G20 heater hose 1989 G20 van

I don't have heat my 1989 G20 van. I was told by my mechanic that the heater valve was removed from the van and that the hoses were reconnected to each other so that it loops back in the system. I have gotten myself a new heater valve, but there are 4 hose connectors, 3 on one side, 1 on the other.

I don't know which hose goes to which connector. I have a Haynes manual, but it doesn't show the hose connections in the manual. Does anyone have a diagram? Or know exactly which hose from where connects to which hose connection on the heater valve?

Thanks,
George

Welcome to AF.

I am not sure, but the heater valve may be related to passenger vans which have a rear heater unit.

If you have a cargo-type van with no rear heater, then I do not think the valve unit is necessary.

All 3 of my G20 vans simply had the 2 heater hoses going directly to the heater core with no valve at all. One was the feed and one was the return line.

BTW likely the heater core was bypassed for a reason, either it leaks (in which case you would need to replace it) or the blender door does not full shut off the heat in the summer.

G20 heater hose 1989 G20 van Copyright Disclaimer:
Contents of this page are from the Internet, the copyright belongs to the original page. All actions are under your responsability, please delete them after 24 hours or purchase it. Email us to report illegal contents.

1. Spark plugs STINK of fuel
2. 2001 express van blowing heater fuse
3. Blower problem
4. 2002 express van radio unloc procedure, help
5. 2002 Express 3500 electrical problem (Cruise Control)
6. How to get my van to blow hot air
7. 2001 Express dies when moving/Idles fine
8. G20 heater hose 1989 G20 van
9. 1990 G20 Conversion van slow to start
10. G10 Inline 4.1 V6!!!
11. 2002 chevy express van heater fan problem
12. 1992 g30 heater motor problem
13. 2000 Express stop light comes on when you let go of the pedal
14. 95 rear end growling
15. 1986 chev g10 van not charging? Need help!

No comments for "G20 heater hose 1989 G20 van ".