1973 mustang won’t stay on

[Erick M]

Got the mustang 3 months ago ran off the trailer stayed on been working on it slowly and tried to start it would not crank over thought it was battery replaced it but now it won’t stay on if I crank it and give it gas it’s starts running but soon as I take my foot off the gas it just dies

 

[Erick M]

Got the mustang 3 months ago ran off the trailer stayed on been working on it slowly and tried to start it would not crank over thought it was battery replaced it but now it won’t stay on if I crank it and give it gas it’s starts running but soon as I take my foot off the gas it just dies

Also tried a few minutes ago I noticed that the starter solenoid started sparking n smokin when we tried stepping on the gas to keep it on

 

[MikeGriese]

Not really much to go on. Could be anything - bad gas, plugged fuel filter, varnished up carb, bad vacuum lines, fouled plugs - the list goes on.

 

[Steve McMahan]

So for sure, you’ve got to check all of the battery connections, and the positive side from the battery to the solenoid. Those sparks and such are sign of bad/corroded connections. What did you do to the fuel system after receiving the vehicle? Unless you know for a fact it’s good, I would remove the fuel line from both ends, blow it out, change the fuel filter, and pull the carb and check to make sure it isn’t full of old gas tank junk.

Where are you in Ca?

 

[Stanglover]

As Steve said, but also check the GROUND cables to the block as well as to the body. I'm not familiar with 73's, but on the 71-72's their will be a ground cable attachment at the voltage regulator. That MUST be a good connection. I assume the 73 is the same.