ok i got a summit electric fuel pump, went cruising today romped on it and i get a bad miss like its starvin for fuel, start headen toward home and i dont hear my pump running anymore. wtf. look at my fuel pressure gaug and its bouning everywehere and rests at 3psi. get home and the pump has a faint humming noise to it... what happened to my pump? its also really hott to the touch, luckily i wasnt bottle happy this evening! also took the gas cap off and alot of pressure came out as took the cap off. is that a sign my pump aint pulling the gas out and just pumping? any ideas?

 

anybody? went down an hr later and started right up.. whats up with that

 

The pump sounds like it might be cavitating. Im not sure if yours requires a prime after installation, but I would check to make sure.

 

what do u mean by cavataing? vapor locking sorta? it just happened once, but dont want it to happen again. i also plugged all the old lines from my mechanical pump, will that be a proble for it too?

 

Cavitating is when the pump tries to turn, but theres no fluid to create the momentum for the wheel.....oh nm lol. Yeah, it may well have been vapor locking. Is it an in tank pump or external? Do you have a charcoal canister installed? And as far as the old pump, just remove it and install a block off plate.

 

it has an inline electric pum from summit, charcoal canister is gone, and so is the old mechanical pump and lines. i capped them by the tank to prevent leaks or fumes from coming out. by me capping all the lines, is there a vent line i should left open? i had alot of pressure come out of tank when opened gas cap. people told me its buildn up pressure and making pump overheat. that correct?

 

anybody

 

Try running it with the gas cap off, tell me if it runs any better

If you got rid of the return line for the mechanical pump you might need a vented gas cap.

 

Are you sure it was pushing pressure out of the tank when you took the cap off and not pulling a vacuum? Also where is the pump mounted?

 

thats what i was told to get by a buddy, and the pressure came out when pump been off 4 bout 10 mins. the pumps mounted in the rear on the floor oard toward bottom of car. exhaust dont come near rearend it exits under car

 

also where do i get a vented gas cap? do they let pressure out, and keep fume smell minimum?

 

you can get vented gas caps at any parts store, my favorite is Oreilly's (IMO). if you plugged your vent line that was going to your charcol canister like you said, and you still have the solid cap, then yeah, you are pretty much creating your own combustion chamber under your car. i did the same but since i have to have a locking gas cap i left my ventline alone and in the stock location and just added a piece of hose that drops down to "drip" on the ground. When i go to the track i mount my old overflow tank to it so it dumps into that and not on the track.

as far as smell goes with the vent cap you won't notice it unless you park it in a garage. Then it will smell like grandma and grandpas garage when they parked the old Buick in it..... but hey, we all love that smell

 

ya i need a vented gas cap... anybody with part numbers for advance, autzone, napa etc let me know please thank u

 

Gas Cap #6822 $6.99
Locking Gas Cap #5794 $14.99

Might want to call and make sure that they are vented, search came up with nothing using the word "vented" also, these prices and part numbers are for zip code 73109 OKC, OK so yours might be a bit different.

sorry, forgot, these are from O'reilly website........

 

same part numbers and prices for AutoZone just checked

 

so vented cap should solve my proble then? i hop

 

i called autozone and they said they dont carry vented gas caps. the ones u listed for autozone are non venting type. advance has one but gotta order it, and it 10.99

 

http://shop.advanceautoparts.com/web...SAMS_797722259___ this the type i need?

 

anybody?