Question about 1987 Oldsmobile Ciera

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Return fuel line specifications

I need to replace the return fuel line and can not find any specs for it. The main fuel line is 3/8 inch. As far as I know the return line is also 3/8 inch. I need to know the length of the return fuel line and what is needed to replace it.

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  • Oldsmobile Master
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What is needed is a lot of time and just a few wrenches. Often the return line is slightly smaller than the main line, but you can determine that when you look at it. But why do you need to replace the whole line? It should be a steel line for the most part, so if it is kinked or broken, just cut out the bad part and splice in a new piece. If it is clogged, try taking apart at the ends and use compressed air to blow the line clean-blow from the front towards the back. If the line has to be replaced, I would just buy one from a salvage yard and make sure it is free of restrictions or blockages before installing.

Posted on Oct 25, 2012

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4.2L Engine

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