66 289 c code fuel pump problem... - Ford Mustang Forum

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post #1 of 4 (permalink) Old 02-11-2011 Thread Starter
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66 289 c code fuel pump problem...

cars runs fine but is dumping gas out the fuel pump where the fuel line runs into it. i have tried tape thread on the fuel line connector but its still dumping gas. help please.

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post #2 of 4 (permalink) Old 02-11-2011
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66 289 c code fuel pump problem...

Hello shommel
Glad that she is running well.

It would help[ if we knew what type of connections
you have to the fuel pump.

I assume a metal line coming out fo the pump to feed up to the carb

I will also assume - - a metal line feeding to the pump.

It is possible that you have a rubber hose at either end that a previous owner installed.

My thinking is that in either case the fitting is not right on the pump.

It could be crossed threaded or perhaps the wrong fitting.
I would determine if it is inlet or outlet and then
remove the line/hose nad see how the fitting looks.

Are these the lines/fittings from the OLD pump?

I am thinking you replaced the pump BUT not sure if that is the case.

It sounds like the fitting is messed up or NOT seating correct.

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post #3 of 4 (permalink) Old 02-11-2011
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Inverted flare fittings do not benefit from pipe dope or teflon tape.
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post #4 of 4 (permalink) Old 02-11-2011
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I have had an issue like that before... those 66 fuel pumps are made of light metal and the pipe flange can crack pretty easy. Make sure that there are no stress cracks around the flange.

Jeffro - 1965 Fastback & 1965 Convert
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