I took the dash out, there was a green/yellow wire that was pulled out from somewhere, don’t know where it came from but it was near the connector that went to the back of the instrument cluster, but it seems that all of the  wires are accounted for, can i splice this to the green/yellow in the connector?

Yes, i did. Also installed new ones, still nothing.

Never tried it with lights on, will try. What would that tell me?

When the key is turned to start the car,  sometimes NOTHING  happens. Turn the key back and try again, sometimes a slight hesitation then it starts, sometimes immediate start like it should normally. I checked all connections to starter, Solenoid etc. Cleaned and reconnected. Taking a trip to Connecticut  to Mustang Unlimited and exhaust place,  Don't want to get stuck!

67 390 gt
New starter, new ignition switch, new solenoid, when key is turned to start, there is a hesitation, no noise, nothing. Then it will turn over and start. 
What might cause this?

Hello all, 67 mustang 390 gt.
Was wondering what temp would the motor be at if the gauge was reading in the middle. On a hot day like today mine is reading way low, I put a infer red thermometer on different parts of the motor, hottest spots only read  about 150 deg. Give or take a few. Edelbrock Aluminum heads and intake, 4 core 23 in radiator, 7 blade 18.25 fan and shroud . What temp would the gauge be reading at dead center?

Hello everyone,
My trunk light just stopped working so im tracing the wire to see why. Was wondering what the most convenient location would be to pull power for a trunk light. I know there are a few locations. I know it has to be full hot to work. Its a 67 fastback 390 gt. I ran it down the driver side rocker channel to behind the kick panel, and up behind the dash somewhere-was trying to avoid taking the gauge  cluster out, it got hot out so i took a break. Where are some good locations?
Thanx

67, 68 mustangs, both have very wobbly exterior handle buttons. Any idea on why or how to firm them up? Driver side 67 is fine, the other three are very loose.
Thanx

Well-finally found the problem, after making sure everything is installed properly, found that the left heater hose was shot and barely attached to the blender. It had small  holes all through it that you couldn’t  see unless you put a light source behind it. Got a new hose set, should be fine will find out tomorrow. After checking out all of the suggestions, should  be tight!
One more  thing, it seems that the 68 resistor is different from the 67, my 68 was built in late 67, so it has the same switch as 67. Does anybody know of the 68 switches being unavailable? And what they look like?

Hello everyone, hope all is well. 67 mustang 390 gt fastback non a/c.
My blower has no force behind   it, all 3 speeds are very week. What could cause this? Years ago it would blow paper away from the defroster vent. Is there a difference between the 67-68 resistor switches?
I just put in a new radiator, shroud etc and decided to finally tackle this issue. Could it be the on off switch itself that needs checking? I do remember way back jiggling the switch and everything  speeding up but it has been changed since then. Where do i start?
Thanx

Hello all, robby13 here. 67 fastback 390 gt
What would cause the tranny not to stay in 4th gear? Just had a centerforce series 1 installed and it feels real good. I had the tranny done this past summer-illegedly. It shifts into gear ok but not great, but in fourth gear when slowing down it jumps out and cant go back in. Then i was under the car yesterday and found the shifter, a hurst competition plus, was just flat worn out! It just wobbles all over the place, i think installed it the late 70s. Would this help with it not going in and staying in gear? I ordered a new shifter and install kit. Hopefully ots inside the box.

I personally save the little red and black caps that come on the battery posts when new and put them back on when doing work. Year ago i managed to  contact both posts with a 1/2 inc wrench-nuff said! I have a draw full of red and black post covers!