Quote:
Originally Posted by Ol Blue K20
Mine wouldn't pull a long uphill grade. It would start misfiring. Runs great now!
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That's so funny. I was fighting bedbolts yesterday to do that very thing. I managed to get 235,000 miles out of my pump, but it doesn't see high temperatures very often. I did a little checking and I'm going back with an AC Delco EP377 to get a little more fuel pressure. I had never given it much thought, but I have read that it's not great to run the pumps below a quarter of a tank due to heat. I'm also going to try to keep it topped up when it's in the high 80s or the 90s here. I forgot that the pumps are in the tank to cool them, not just make them quieter. And if the pump is getting hot, then it's heating the fuel too, which probably doesn't help performance. The OBS trucks supposedly benefit from having a little bit more pressure. We will soon see. Did you guys go back in stock with the EP386 or an aftermarket replacement? Ol Blue, sounds like yours is running well now.