Answer: The problem can be any number of things that are fuel related, or it can be electrical. The simplest thing to check is the fuel pump and fuel supply, and this can be done all at once. Start by disconnecting the fuel lines at the carburetors. Put coffee cans under the fuel lines and turn the key to the “on” position, not the “start” position. Now that there is no back pressure on the fuel system, you should hear a series of clicks coming from the fuel pump. If you don’t, that’s your problem. Try tapping on the fuel pump with a plastic hair brush or something similar. This will sometimes get the fuel pump working but it should be repaired or replaced. If you do hear the clicks, you should have a steady stream of fuel pouring into the coffee cans. If not, you have a blockage in the fuel lines or filters. When these fuel pumps fail they do not generally tend to fail in a way that the problem methodically repeats itself. This leads me to believe that the problem might be electrical and I would look towards the ignition coil as the culprit.
Question: I’m having a new problem with my 1957 Jaguar XK140. After driving it for a while, usually about fifteen minutes, it sputters and then stops running. After about thirty minutes it will start right up and then repeat the problem. It feels as if it’s running out of gas, but the tank is full. I’d prefer to try to fix it myself if possible. Any suggestions?
Answer: The problem can be any number of things that are fuel related, or it can be electrical. The simplest thing to check is the fuel pump and fuel supply, and this can be done all at once. Start by disconnecting the fuel lines at the carburetors. Put coffee cans under the fuel lines and turn the key to the “on” position, not the “start” position. Now that there is no back pressure on the fuel system, you should hear a series of clicks coming from the fuel pump. If you don’t, that’s your problem. Try tapping on the fuel pump with a plastic hair brush or something similar. This will sometimes get the fuel pump working but it should be repaired or replaced. If you do hear the clicks, you should have a steady stream of fuel pouring into the coffee cans. If not, you have a blockage in the fuel lines or filters. When these fuel pumps fail they do not generally tend to fail in a way that the problem methodically repeats itself. This leads me to believe that the problem might be electrical and I would look towards the ignition coil as the culprit.
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About Steve
Steve was born in Brooklyn, New York in 1957. He grew up in a time
and place where cars were worshipped, and none more so than the
“American Muscle Car,” although this was a phrase that wasn't coined
until decades later.By the age of twelve he was repairing just about
anything with an engine. |