'89 Camaro heater problems

My 1989 camaro heater blower seems to be blowing fine, but no heat ever comes out, even after 30 minutes of engine running. The problem started suddenly. Any suggestions???? Thanks!!!

thermostat needs replaced, or, heater core

ya vo! genopsyde is spot on.

also, you might have a mode door actuator problem, if the door that controls the flow of air isnt working, it never routs the air to the heater core, and you keep getting cold air. could be a control head, could be an actuator, could be lots of things.

could be one of 3 things.
Theromstat/
Heat control valve
Heat core

Best bet is either theromostat, or the heat control valve i had the exact same problem about a month ago replaced both now i got lots of heat!

Thank you!!! have now replaced the thermostat with no improvement. I'll try the heater valve next. Is this hard to do, and where is it!!!???

Thanks agaon!

ysys - (can't delete this)

heater control valve is behind the dash, not sure exactly where though.

heat control valve isnt in the dash , its on the outside of the motor...
ill get a pic later and show you, it cost me 14.99 for a new one, autozone and orileys said it would be that.. they frequently go out for somereason.. but..

there is also a...nipple, for a lack of a better word, should be on the manifold somewhere that goes to the heater. I had a bad one once and had the same problem. But it was physicly broke and I had a leak..just a thought.

A pic would me MUCH appreciated!!!!

Thanks for all your help

it could be a problem with your insturment panel, try mixing the fuel misture and let your altimider at a higher rate.

what the hell are you talking about crapmaster? do you know how a heater system works??????

Look at it this way, hes full of shit and doesnt know what hes talking about but causing problems, and being a fucking dumb ass! hopefully everyone sees it and doesnt ask again, and yes im talking about You Crapmaster!