What is the purpose? (Page 2/2) weaselbeak JUL 13, 10:31 PM I'm going to rule out any possibilty of that on the next try. E.Furgal JUL 17, 04:30 PM get a delphi pump.. most other aftermarker pumps are garbage.. air tech being the bottom,, bosch not to far infront of it.. Monkeyman JUL 18, 02:06 AM I put 171k miles on my '96 Jimmy without ever having a fuel pump issue. I have 85k miles on my '04 Blazer and no fuel pump issues on that, either. What truck are you referring to that has a special pump that keeps going out? carnut122 JUL 21, 10:41 AM quote Originally posted by NJD85GT: Tell me about it, when my pump was going in my '97 S-10 4.3L the dealer wanted $600 for just the pump and $1,200 installed! I found a good pump online for $250 and had a shop change it out for another $100 or so. Nate My 94 S10 pump (4.3 W engine), was only $80-90 at AZ ( that was about 7 years ago). carnut122 JUL 21, 10:42 AM quote Originally posted by weaselbeak: There is a difference between the 2 door I have, and the 4 door. Different fuel tanks. But it doesn't really matter now, as I have taken on this project of changing the system. I'm really not wanting another stock fuel pump as I do not trust it to get very far from home. At least my way I can change it out on the side of the road in minutes. I'm just trying to figure out whether I have an inherent problem or just crap for pumps. If I knew for sure my system is OK, I'd spring for one of those really pricey in line pumps. And a cheap spare would give me great piece of mind. Since you're sucking out of the top of the tank, how did/does it get it's prime? weaselbeak JUL 22, 01:41 AM The pickup tube exits the top of the tank, but of course it extends to the bottom. Just like you pulling thru a straw. The pump is below the tank, so once it's primed it stays that way, like siphoning gas. BTW, it's a 1998 Blazer 2 door. It has a different tank and pump, and is not common. carnut122 JUL 22, 12:11 PM quote Originally posted by weaselbeak: The pickup tube exits the top of the tank, but of course it extends to the bottom. Just like you pulling thru a straw. The pump is below the tank, so once it's primed it stays that way, like siphoning gas. BTW, it's a 1998 Blazer 2 door. It has a different tank and pump, and is not common. Since it has a return line, is it possible that an air gap develops in that part of the line above the fuel level to the bend in the hose every time the fuel pump shuts down? I'm not sure that's enough to cause your pumps to fail, I'm just exploring your options. weaselbeak JUL 22, 12:40 PM quote Originally posted by carnut122: Since it has a return line, is it possible that an air gap develops in that part of the line above the fuel level to the bend in the hose every time the fuel pump shuts down? I'm not sure that's enough to cause your pumps to fail, I'm just exploring your options. All bends are smooth. I'm kinda anal about that stuff. carnut122 JUL 23, 08:23 AM quote Originally posted by weaselbeak: All bends are smooth. I'm kinda anal about that stuff. I'm just saying that if the system doesn't hold a vacuum, the pump at the least gets a shot of air through it each time it's started and at the worst actually has to re-prime. I would think establishing a prime (if that's what's happening)each time, might be part of your issue.