99 Yukon 5.7l V8 Fuel Filter Replacement

[McDermut]

Can't remember the size but if I guessed it would be a 5/8". The 6 point on the filter, if I guessed would be 11?16" or maybe even 5/8". Again, just a guess.

The reason it is softer, the line fitting, is that hen you tighten the fitting on the line into the filter there is a flare there and the metal needs to be soft enough to mold to the flare shape in the filter. Just like on brake lines.

You're correct, it was a 5/8" on the fuel line and if I recall correctly a 13/16 on the filter. Penetrating oil and rags were definitely necessary, and the way the filter is positioned makes for a tight workspace. Everyone's advice into account it went off without a problem, many thanks!

 

[OR VietVet]

Glad to hear it. After you drive it for a day or three, recheck for any leaks.