Electric fuel pumps

[gophersnake]

Well, I only thought I was out of the woods!

The ACDelco pump mounted on top of the wheel well worked just fine in cool weather. As soon as we got a warm spell with temps in the 60s, though, it started losing prime -- vapor locking, apparently. I have no idea why this ACDelco did, when its predecessor (same model, mounted the same way) never did in six years. I also don't understand why mechanical fuel pumps don't seem to have the same problem.

I finally caved in and moved the ACDelco down to the frame rail. It's only been there a week but so far, so good.