another wiper problem

[baxsom]

ok, i admit i havent fully went through the new car yet, work just takes way too much of my time to do too much at once.

issues,

wiper door will not open and headlights are slow, so i am guessing vacuum leak somewhere. anywhere that is normally suspect?


next issue plate and reverse lights do not work,

again any normal causes?

thanks

 

[68Roadster]

baxsom,
What year model are we talking about here?

 

[baxsom]

baxsom,
What year model are we talking about here?

sorry i am a dork
its a 72

one thing i noticed.
where the license light is supposed to be there is three wires.
one has a plug on it which looks like it is where the license light plugs in.
the other two are the same color (tan/blue stripe if my memory is right)
and have a spade connector on the end with a bolt in the spade connector like it is supposed to screw into something. i am guessing that this is a ground wire/s.

could that be the reason my reverse lights arent coming on. I dont know what those two wires ground but i would assume that they ground something?

 

[JohnZ]

Do you have the Shop Manual and the Assembly Manual? Both have vacuum and wiring diagrams for trouble-shooting. Hard to diagnose wiring issues in a forum when we don't have wire colors.

 

[baxsom]

i do have the assembly manual but the two wires hanging out of the back are not in it.

coming out of the wiring harness at the same location as the tag light wire are two tan or orange with a blue stripe wires. they each have a spade connector on them. I am thinking that they are for the now defunct alarm.


UPDATE
wipers now work, once i was able to get the wiper door all the way up, the wipers started working.

i hooked a vacuum line to the headlights and when you blow into them they spring right up. same as the wiper panel door so yeah looks like i have a busted diaphram somewhere. i thought that the headlights worked on vacuum both them and the wiper door opens on positive pressure.

(mental note if you try to open the headlights all the way and all you have for air is a tube and your mouth dont try to open them very fast or you could pass out)


NEW PROBLEM
for some reason now all of a sudden the left turn signal indicator on the dash turns on when i pull the headlight switch. anyone every hear of that.

 

[baxsom]

things just keep getting better and better.

in a weekend, i have now fixed the windshield wipers, turn signals, backup lights, and started troubleshooting the headlight/wiper panel issues.

its amazing what you can do with a web forum, a voltmeter, and the knowledge that a good fire extinguisher is just an arms reach away.

 

[JohnZ]

i thought that the headlights worked on vacuum both them and the wiper door opens on positive pressure.

Nope. Both the headlights and the wiper door work only on vacuum, supplied to different sides of the diaphragms in the actuators (which is why there are two hose nipples on each actuator - one for "up", and one for "down"); there is no source of pressurized air.

 

[baxsom]

that is very wierd
ok maybe i am understanding some stuff wrong then.

on the vacuum actuator for both headlights and the wiper door.
if i take the vacuum line off of it and push on a hose.

sucking on the hose does nothing.
blowing into the hose raises both headlights and the wiper door.

what causes that.
i am going to wager stored vacuum being released? mainly because + pressure on the actuators definitely raises them and i cant seem to find the turbo anywhere so the + pressure source escapes me.