No heat

[PWND3r]

94' Camaro has no heat. New thermostat, blower works, coolant was flushed last summer etc..

Any idea what it could be?

[squareandcompass]

Shot in the dark... Was the thermostat put in correctly?

[PWND3r]

Shot in the dark... Was the thermostat put in correctly?

Yep

[TrickyTransAm]

Does water flow through the heater core?

Is the HVAC door opening and closing?

[MunsterZ28]

does it have enough coolant? lol very simple question

[PWND3r]

does it have enough coolant? lol very simple question

You know better.

Hm.. I haven't looked into the door or anthing; maybe I'll tear down the dash this weekend and take a look. What should I look for?

[Lucky SOB]

Back-flush the heater core

I have 2 48" tubes (different diameters) with garden hose fittings on one end and hose clamps on the other ends. Hook the hose clamp ends up to the "nipples" on the firewall and a garden hose to the other end. Then run water through both directions. I put the non-garden-hose-connected tube in a 5gal. bucket to see what comes out of the heater core. Often it is little black pellets of rubber (meaning the insides of your hoses are breaking down, commonly). You can borrow them if you want

[PWND3r]

Back-flush the heater core

I have 2 48" tubes (different diameters) with garden hose fittings on one end and hose clamps on the other ends. Hook the hose clamp ends up to the "nipples" on the firewall and a garden hose to the other end. Then run water through both directions. I put the non-garden-hose-connected tube in a 5gal. bucket to see what comes out of the heater core. Often it is little black pellets of rubber (meaning the insides of your hoses are breaking down, commonly). You can borrow them if you want

Hmm I might take you up on that.

We'll see how the weather holds for this weekend and I'll get back to you. I'm currently researching.

These cars have a heater control valve too right? I might order one and just swap that out too.

[Lucky SOB]

Hmm I might take you up on that.

We'll see how the weather holds for this weekend and I'll get back to you. I'm currently researching.

Sounds good, If I'm around this weekend we can just do it at my house and save you a trip back.

[PWND3r]

Alright sweet.

I'm confused, I'm reading about a heater control valve. Some places say the V8 has it, others say only the V6.

[Lucky SOB]

Alright sweet.

I'm confused, I'm reading about a heater control valve. Some places say the V8 has it, others say only the V6.

hmmm... don't know anything about that.

[TrickyTransAm]

You'll see it on the hose for sure. Looks like a Pankake saucer with hoses coming in and going out of it.
cant recall on yours, but I would imagine has a vacuum line going to it.

[1BADAIR]

vacuum line near the pcm hooked up?