I found this in the glove box. It looks kinda like a pressure switch. I found a broken wire that is the same color on the brake proportioning valve ? Does it go to that? If so, what does it do?
CK5
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Anyone Know What This Is ?
- Thread starter 396 TransAm
- Start date
You found it loose in the glove box?
The brake combo valve would ground the the bulb in the ip. The parking brake switch would be spliced into same circuit.
Check to see if the switch is normally closed. See if you can find a place on parking brake handle or pedal it might fit
The brake combo valve would ground the the bulb in the ip. The parking brake switch would be spliced into same circuit.
Check to see if the switch is normally closed. See if you can find a place on parking brake handle or pedal it might fit
That is the wire to the brake proportioning valve. The bracket mounts to the top of the drivers frame rail. The two wires you have, should be tied together. There should be another wire that comes out of your headlight harness, with a rubber plug, that attaches to that rubber plug at the bracket.
Ok, yes, I see that now. What does it do ?
If you lose pressure on one end of your braking system, like from a leak, low fluid, or failing master cylinder, the piston moves inside the prop. valve, and grounds the wire. The grounded wire then turns on the brake light on the gauge cluster, as a warning. The wire also gets grounded when the e-brake is on, turning on the same light.
Wondering why it is removed. Could it be the valve is off center all ready? An Ohm check to ground on the little bit of wire at the combo valve will tell the tale.
I know I'm always stepping in that area when doing stuff on that side
You guys are prob right. When I bought it, the PO had just took it somewhere for a complete brake job. The wire looks broken not cut, but maybe they did it to get rid of the light. Brakes are better than almost anything I currently drive, though, lol. Should I bother with fixing it? I don't think that I have any issues.
The remaining wire will unplug from the valve. You'll need to find the other half that goes to bulkhead connector
Copy that, thanks guys.
Just a thought but maybe it's just the broken part they already replaced.
Check
Yea, I checked it and it is missing from the frame rail. I am just going to leave it off for now. Brakes work to well to disturb the system. I would have to remove the valve to attempt to splice the wire back together.
thanks
thanks
No the wire will unplug from valve it has a black dome shaped plug, the terminal is single round. A pocket screw driver, gently worked around edge will pry it up.
Ohh, ok cool. I will try that next time i got it on the lift.
On another note, anyone know what this is? Obviously some sort of heater.
Resistors to drop voltage from 24V to 12V on the CUCV glow plugs. It is often tossed because it was a poor design that leads to cascading glow plug failures. Better to run the glow plugs from the 12V circuit instead.
I see, as plugs go open circuit, the remaining ones get increased voltage. They should have used 8 resistors, or better yet 24V plugs if they wanted a 24V ignition. Relay contacts would have lasted longer at 1/2 the current.
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