heating problem
#11
Here's a good link for troubleshooting headlight problems http://www.corvette-101.com/vacuum.htm the text is good and here's the corrected diagram, PG.
#12
My driver side light was slow coming up and sometimes would just come up half way. With the head light problem, look at the actuators and see if the rubber boot is torn. Look at the shaft that the rubber boot is on and see if it corroded. I had pull my actuators, clean the shafts and replace the rubber boots.
#13
thanks, I just looked at them and the boot is bad. is it hard to take those off? also I was wondering, there is a round thing that sits right under the washer fluid holder that has two lines running from it one goes the a hard line that runs down the frame headed to the back, and the other rubber line runs up about to the brake master cylinder, where its been cut. I know when I bought the car that the motor had been replaced with a crate motor, whoever put it in didn't seem to care to much about putting it in right or hooking everything back right! So did a 74 have a shut off valve when it was new, or is that something that the motor installers did not put back in.
#14
Actuators: In the Book they say to remove the grill to remove the actuators, I had a helper raise and lower the hood and took them out from the top.
The round thing might be the Vapor Canistor, one line goes to the tank and the other "T"'s with the PCV valve and then connects to full manifold vacuum at the carb.
My car came stock with A/C and the hot water shut off. Here's the one I took out. PG
The round thing might be the Vapor Canistor, one line goes to the tank and the other "T"'s with the PCV valve and then connects to full manifold vacuum at the carb.
My car came stock with A/C and the hot water shut off. Here's the one I took out. PG
#15
PG: Did you ever check the heater return line w/ the A/C on and the engine hot? I put a manual valve in my supply line and the heater core still would get hot after awhile from the return line so put a valve there also.
Since I put my own A/C in, wasn't aware of a valve in '73. Thought they started in '75 but since yours has one, then maybe mine should to. Will have to look for a vacuum port on the control head. If it does, might put a vacuum controlled valve in each heater line.
Since I put my own A/C in, wasn't aware of a valve in '73. Thought they started in '75 but since yours has one, then maybe mine should to. Will have to look for a vacuum port on the control head. If it does, might put a vacuum controlled valve in each heater line.
#18
Do you have a cut off for the coolant going to your heater core? It would be a 3/4 inch hose coming out of the front top of the engine, a shut off valve, and then going down to the passenger side fire wall and connecting to a valve down there above the tire (a small vacuum hose will also come out of that valve. Open it in the winter to stay warm and turn it off in the summer to cut the heat coming into the compartment. Trust me, you will see the difference.
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