Hi, I need to replace both brake and fuel lines due to rust. Anyone know the size of those lines?
Thank you

 

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Replacing entire line can be challenging w/ only access from a car on jack stands. Many splice new line into the old line, but this may not be an option if the brake lines are bad enough.

I had a truck w/ rotten lines and attempted to replace worst looking section. It failed again soon afterwards at another point. Problem is not only general corrosion (loss of metal), but corrosion pitting (chlorides from salt) which results in pinholes at what seems like sound locations. Cup

Following web site may be helpful for sizes. It appears there are two sizes (4.75mm and 8mm). From memory, the smaller size seems likely for Accords. I could not find any info on brake line size in the factory manuals. Technical Help/How to PDF's

You can buy pre-bent assy from Honda parts, but installation will be the issue.

good luck