I KNOW ITS LONG BUT PLEASE TAKE THE TIME TO READ!
Well i am sort of confused, if you have read my threads like idle issues and still having issues you will find out that i have been struggling to get this baby back up and running the way it used to. After me and a buddy tore the car back down again to get the tank out, which went a lot faster this time we did a basic visual inspection first to see if any obvious problems appeared. Like something floating in the tank or if the sock was clogged with something. Didnt find anything. So we decided to run the pump outside of the car and tank to see what it does. We got a bucket of water and put the sending unit down inside it and took a rubber hose on the sending side and looped it back into the bucket and let it run. We first let it run for 1.5 hours and we can back and it seemed fine. So then we let it run for 3 hours which is the time it takes me to get from house to my school which is when i usually start to notice problems. After the 3 hours we came back and it was still running. so i unhooked the wires connected to a battery charger to the clip connector for the sending unit and then hooked them back up. I INSTANTLY SAW A DIFFERENCE IN THE AMOUNT OF PRESSURE THAT THE PUMP WAS PUTTING OUT COMPARED TO WHEN IT HAD RUN FOR 3 HOURS BEFORE I DISCONNECTED IT. The pump had more pressure, the stream of water was a lot faster. We even put some vise grips on the hose to simulate as if it was running at what the regulator wanted, not the same psi but we didnt just let it free flow. I then was going to run it for another 3 hours but i fell asleep and it ended up running for 6 hours. So i basically ran it as if i was going to school then turning around and coming back. I went outside to check it and it wasnt running at all at this point. disconnected and reconnected, nothing. So i decided to let it sit for a while and the next day i went out and hooked it back up and it made a buzzing noise for about 10 seconds then nothing. I dont believe we did anything bc you mean to tell me that i cant run my car for 6 hours without the pump going out, now granted i know my car probably wont run exactly 6 hours without running out of fuel but i know that i could probably get close to 6 without stopping and being on the highway the whole time. Then this is what gets me, dont know if i stated in the other threads that my vent line to the canister was blocked bc the canister was on its side for a while and it blocked the line with the pellet stuff. The canister was on its side like that for a while, it was even that way before i put the new pump in which was around march of this year when i got it all down. So me and my buddy think that maybe THE FACT THAT THE VENT LINE WAS BLOCKED THAT MAYBE IT CAUSED THE PUMP TO GO OUT EARLY. I dont know if it did put i certainly dont think it helped it. ANY COMMENTS? i decided to get a holley pump this time, basically the exact thing as the bbk but i just figured it was defective thats why i went with holley instead before we figured out that maybe it wasnt the pumps fault. And i also just went ahead and got a new esc module bc i got a code for it the last time the car was running and im going to get another purge valve just in case. I AM OPEN TO ANY IDEAS OR COMMENTS THAT ARE ON YOUR MINDS!!!

 

Please i am open to any comments, am i the only one that have had these kinds of symptoms before.

 

Kevin G or Vader, have you ever heard of anything like this?

 

My 2cents:
Pump was designed to be compatible with gasoline not water. Gasoline cools the pump better than water.

 

that may be but it doesnt explain the pressure difference and why it seemed to go out prematurely

 

I think excess tank pressure killed my Holley pump (which was actually a walbro pump in the box). The pump must have been overheating, because it would work again after it cooled down. But I verified the failure with a pressure gauge and everything.

The Holley pump that started giving me fits was only about 3 months old (I had put it in before my stock pump went out, so as not to be caught by surprise).

I then put in a Carter performance pump. Right after I put it in, it would start whining after it had run for a while. Very discomforting. I decided to inspect the tank pressure control valve (the little 3 port valve (in,out,vacuum) by the carbon canister) and the rest of that system. I found that little valve to be sticking a bit. I put in a new one, and haven't heard a peep from the pump ever since (I'm thinking that the Carter pump started whining (but still pumped) where the Holley (walbro) pump just cut out).

 

thank you thirdgen88, i really appreciate the comment. My does that to, it would run fine for a little while up to school then after about 3 hours it would start messing up. i would let it sit and it would act fine again. I have also looked at the canister system. when i was having issues i would unhook that three way valve you are talking about and the act would clear right up and act like nothing ever happen. I believe it was the pump too bc when it would mess up, the fuel pressure gauge would say its running around 25 psi.
I ordered one of those valves from the dealer just to make sure i get the right part bc every other places has multiple part numbers for it. I guess i cant really blame that valve bc my whole vent line that the valve controls was competely closed off which would of build up a lot of pressure. Just going to replace it just in case. So hopefully with that new valve and pump i should be set. Any more comments or personal examples are welcome.

 

After my experience with this, I now believe that this kind of situation may be why aftermarket pumps never seem to last as long as the factory pump did (because the problem that finally finished off the stocker still exists with the new pump in place).

I also noticed that when I'd take off my gas cap to fill up, it would hiss loudly, and actually push the cap off once I got it twisted all the way off. Ever since freeing up the pressure relief system, that went away too.

 

Thirdgen88 mine seems to have quite a bit of pressure too but it doesnt blow my cap off though. so what happen to your stocker do you know? well when i put my msd box in i moved the canister on its side to inside the fender well a little. i had it on its side for a little while, then i got the exhaust competely redone and was coming home i got a lean code. Did a pressure check and it was in spec but the flow test came out to be about a third of what it should be. So the vent line blocked might of finished off my old pump. So as long as everything is in order with the pressure inside the tank, being that the three way valve (canister purge valve by the coolant reservoir) and the tank vent valve which is yellow that is connected to the brake hose bracket in the back, a high performance pump should operate the best that its going to besides if maybe you get a defective one?