Q: I am trying to splice the fuel line while it is attached to the vehicle how do I soften the nylon to get the splice complete to th

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my fuel line has a hole in it I cut out the bad area and am attempting to splice with a union. How do I soften the nylon to get the union to connect

My car has 40000 miles.
My car has an automatic transmission.

The best and safest way to heat up and soften the nylon line to insert the repair union is to use a mechanics heat gun. This gun is like a hair drier except it gets a lot higher.

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