1996 Geo Prizm



October, 16, 2010 AT 5:42 PM

Engine Mechanical problem
1996 Geo Prizm 4 cyl Front Wheel Drive Automatic 116k miles

Hi. A guy who fixed my brakes noticed the fuel line is in bad shape. He sent me the following message:

"The fuel line from the tank to the engine is literally days away from rotting out and leaking. Perhaps you've noticed a fuel odor as the lines are even damp in spots. Servicing the lines on this car might be opening a can of worms. The fuel tank is plastic (a plus as it won't rot out) The fuel sending unit (which goes in the tank) handles the routing of the fuel lines (pressure line, return line, and one or two vent lines) It also serves as the float to make your fuel gauge work. My fear is that that metal sending unit will break when trying to service the fuel line since it is also very rotten. I believe to fix the car correctly it will need the fuel sending unit, fuel filter and the pressure line run from the tank to the engine. You're probably looking at 4-6 hours of labor to do all of that work. I'll have to get back to you with a price on the sending unit."

I don't understand how he could tell that the sending unit is in danger of breaking if that part is in the tank.

I'm linking some pictures so that you can evaluate how dire the situation is and see if what he's telling me makes sense.

In order from coming off the gas tank to running under the car:


3 Answers



October, 18, 2010 AT 8:42 AM

If you can see or smell gas, then he is right. There are some lines badly rusted.

Sending unit is in tank and they are replaced (generally) as an assembly.

He is probably saying that disconnecting the feed and return lines would break something.

He may be right, but you would have to remove it to find out.



October, 18, 2010 AT 4:32 PM


Still not sure how he can tell that the sending unit is " rotten" if it's inside the tank. Does that make sense to anyone?



October, 19, 2010 AT 8:58 AM

If car sits for extended periods of time and you do not use a fuel stabilizer, then sender MAY be bad.

But that is an assumption.

I have a 91 Corolla and sender still works.

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