lemonade

i just got my car painted, it had say for about 2 months. when the car is cold, the pump seems to be at full power. i drove it for about 20-30 minutes, and it acted like it ran out of gas. but i just put ten dollars in. i tried to start it immidiatly, and it didnt do anything. i made sure everything looked right then tried to start it again. i noticed i could barely hear the fuel pump. (a (holly? weber? red) it started up, then i tried to drive it home, about five minutes later it did it again. i let it sit, the fuel pump was making none of its usual noise. i tried after a few minutes, again i could hear the pump was weak. i drove it home, i left it running, and saw i had 0 fuel pressure. is my pump just dead and its time has come to move to the self of **** i might take apart some day for the hell of it? or is somthing else wrong?

Sterling

?
I dunno.

1stgen4life

iTrader: (1)

Sounds to me like a bad fuel pump. I think that is what is wrong with my car as well. Just test it to make sure it is not working, and if that is the problem, replace it. Good luck.

Jon_Valjean

Check your electrics before replacing anything...

partsguy74

This may be a stupid question, but you have replaced the fuel filter, haven't you.. A clogged one could cause your symptoms.

OnlyOnThurs

^^^i agree with Partsguy.....check/ replace fuel filter (its like 5 bucks i think) first.....

rotor vs. piston

If it's a holley, I've had a similar issue with mine two times where it "for no reason" just didn't work. Mine is rebuilt, but it just seemed to be a fluke with mine, had forgotten about that until just now. I say check your conectors for dirt, corosion, etc. that seems to be more the issue then condem the pumpl

cdrad51

Well, thanks for the enlightened contribution to the thread, Sterling.


Lemonade, what you describe is the exact same problem I've been trying to handle for awhile now. Thinking it might be a bad pump (I have a 7 psi Carter fuel pump), I replaced it couple of weeks ago with a brand new one, and did a test with similar bad results: After 30-40 mins of driving, fuel pump can be barely heard, gauge located at the FPR reads 0 psi, and float bowls are low or empty. At least with this pump I haven't experienced fuel starvation symptoms, yet.

One thing worth looking into is your vent system in your tank. If for some reason the flow of fuel to the pump suffers, the pump might overheat since it uses the fuel to cool down, and then creates a vapor lock situation. That's just a guess so far, I haven't been able to pinpoint what the source of the problem is. Other than it doesn't seem to be the pump itself.

IanS

iTrader: (4)

CDRAD, did you ever see if your tubes are clogged or not? Lemonade, also see if your return or vent lines are clogged. Does your tank hiss when removing the gas cap? That may tell you something. Just ideas I am throwing out...

EDIT: Since I am a noob because I have less than 1000 posts. though I guess I dont know what 6 port means so yeah I guess I am a noob....






lol

cdrad51

Yeah STFU n00b

IanS

iTrader: (4)

HEY!! I may be a noob but you still dont listen to me when I have fixed the exact same problem you have had!.. HA! what do you have to say now???? eh? eh? Thats what I thought.... bitch







lol

cdrad51

You had the same problem? and how did you fix it?

IanS

iTrader: (4)

dp

IanS

iTrader: (4)

dammit man I already told you. First off, my return lines were clogged. I unclogged it by shooting compressed air into it (from firewall to gas tank). I also ended up swapping tanks because of all the rust buildup. The main part though from me losing fuel pressure was the return line was clogged. I understand that your scenario is slightly different as you have it blocked off (I think). I am unsure about how that works since you would think that any excess fuel being pumped in would go back and not build up too much pressure forcing the pump to slow down. I would think (not sure) that over time you could blow a soft line and that would definately be a bad thing while you are cruising at 100+ down the highway.

Also if the pump is pumping against itself it would get hot and possibly shut down or fry itself.

cdrad51

I thought you were gonna post something useful...


j/k man, tks for the tips. Yes, my return line is capped at the carb, and the firewall end is hooked up in a loop to the end of the pipe that goes to the charcoal canister.

IanS

iTrader: (4)

Anyone know the usefulness of doing that? Capping off the return line I mean. Sorry to jack your thread lemonade. I hope you figure it out becasue I am sure it is something relatively simple. There are only a few components with a fuel system, so good luck man.

Sterling

In all this long-winded pile of **** in an attempt -once again- to show me up, you forget to mention that your return line is capped?
Wadda Douche!

Look Carlos, put away your big hard-on for me because you're making yourself look like a real dick.
Just do what you do every time you don't know the answer, and tell him to "search" & call him a "nOOb", cause that's what you're best at, fatboy.

cdrad51

hahahaha good one Dennis. I guess even if that was true, it'd be better than saying "? Dunno ", which I hereby nominate for post of the year in a technical forum