87 camaro -littlr or no fuel pressure after replacing pump

i need to know if an improperly installed fuel pump would show little or no fuel pressure, and i need a picture that shows the pump and sending unit

Did you replace the filter and check the regulator? Try restricting the return line from the regulator to see if pressure will go higher. Here is a pic of a complete unit.:icon16:

http://img166.imageshack.us/img166/4131/pu401amd1.jpg

Did you replace the filter and check the regulator? Try restricting the return line from the regulator to see if pressure will go higher. Here is a pic of a complete unit.:icon16:

http://img166.imageshack.us/img166/4131/pu401amd1.jpg/thanks for the picture,it helped alot , i think the problem is at the pump were the pump connects to the sending unit, instead of a hose , there is some type of black quick connecter where the pump plugs into the fuel line ,i think it must be bleeding off there, because it did not have a tight fit. what do you think about replacing that black connecter with a hose and clamps

did your pump come with an instal kit? I could be thinking about the wrong thing but thats what the kit comes with, a hose to make that connection.

thanks for that info, the kit came with everything but that piece, which explains why i am losing fuel pressure, do you agree?

Another thing that happens is if there is plastic inside the fuel strainer, you will hear it snap if you push it onto the pump with the palm of your hand. The plastic breaks and leaves little splinters that are then sucked into the pump and cause the pump to lock up.

I think the black peice you're referring to is a resonator which is used to quiet pump nose.

Your problem lies elsewhere, probably the regulator, which is normally replaced with the pump hand in hand anyway. Do as HotZ28 has already suggested, pinch the return line and see if pressure increases.

Just to double check a goofey thought, is this a TBI or TPI? There is a substantial pressure difference in specs between the 2.

it is a multi port

i already replaced the regulator and fuel filter , and i installed the hose where that black resonator was, and still getting no fuel pressure , this is killing me i already removed the tank three times in the last three days

The pump is receiving power?

Waht lead you to replce the pump in the first place?

wasn,t getting fuel and could not hear the pump, what do you think about the pick-up coil being bad,

I think the black peice you're referring to is a resonator which is used to quiet pump nose.

Your problem lies elsewhere, probably the regulator, which is normally replaced with the pump hand in hand anyway. Do as HotZ28 has already suggested, pinch the return line and see if pressure increases.

Just to double check a goofey thought, is this a TBI or TPI? There is a substantial pressure difference in specs between the 2.

its multi port, what goofey thought do you have im desperate?

the car was running fine , then it just quit , would not start,

The goofey thought was if you had a TBI which runs less than 1/2 the pressure of a TPI.

Anyway, there is a fuse on the right hand fender above the battery in a black weather pack, has a black and orange wire running to it, check that bad boy, it's a quiet problem maker. :thumbsup:

no i checked that fuse , its good

Ok then, something is not adding up here.

Where did the pump come from?

Did you double check and make sure you connected the pump to the wiring harnesss and that the ground wire is clean and secure?

by restricting the return line and the pressure going up what would be the problem?

Your problem lies elsewhere, probably the regulator, which is normally replaced with the pump hand in hand anyway. Do as HotZ28 has already suggested, pinch the return line and see if pressure increases.

Dejavu:grinyes:

First, the hose section between the pump and steel tube is a "pulsation damper" unless you were aware of the problems with those and installed a section of regular fuel line hose there instead. Those swell, soften, and split very frequently.

Second, restricting the fuel return line will reveal any possible problems with the pressure regulator leaking through. If pressure is low but increases when the fuel return line is pinched closed, the regulator is probably leaking internally.

Third, you need to get the pump to run before you can test fuel pressure. The pump should run for a two-second prime cycle whenever the ignition is turned on. The ignition will need to be turned off for at least 20 seconds before the pump will run a two-second prime cycle again on ignition power-up. You can also remove the fuel pump relay and jumper the main power connections to run the pump continuously for diagnosis, or supply a separate 12V sounce to the "G" terminal on the ALDL connector to power the pump. However, applying power to the "G" terminal requires having a good relay installed, since power will have to route through the normally closed contacts of the pump relay to reach the pump.