Just replaced the pump and fuel filter. Now when I turn the key instead of the 2 second consistent pumping noise I'm used to hearing from the pump (before it broke), I hear "tat - tat - tat". Theres NO fuel being pumped out it seems. Any idea what the cause of this could be? Mixed up hoses or something???

hi when you install pump did you make sure that the two wires inside tank where fully seated into connectors?.also if you have air in lines, sometimes opening schreader valve will let it out while it is running,key on engine off?............................................

Yes, I did make sure that the two wires instide the tank were fully seated.
Fuel isn't even making it to the fuel filter, let alone the schreader valve

hi if fuel is not getting to filter then either the feed line is obstructed or the pump is not working properly, you will probably have to replace the pump..........................as far as the pump,it is defective or the external wiring is some how compromised and must be repaired............................

ps did you try the"run power from cigarette lighter to adal, fuel pin in console" trick?, to see if the pump will run on its own, bypassing the relay and associated parts?...............

[This message has been edited by silver86se (edited 06-16-2004).]

I'm going to check that none of the lines are crimped first - I hope I don't have to drop the tank AGAIN, that would be a huge Biatch.

Either bad fuel pump or connections... check the aldl route above.

[This message has been edited by ryan.hess (edited 06-16-2004).]

Here's a stupid question for your, how much fuel is in your tank?

I had the EXACT same problem back when I had my 2.8 V6 and I was shocked to find out the pump I put in the tank (Brand new $90 pump!) was shot!

I replaced it with a elcheapo $40 pump and that was 2 years ago and I have been running my 3800 for over a year now without a problem!

Just my .02

Axcessitall

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Slim possibility the fuel pump relay is cylcling rapidly, hence the tat-tat-tat-tat. Apply 12 v to terminal G of the aldl. This bypasses the fuel pump relay and ecm and sends 12 v directly to the fuel pump.

Any chance you reversed the leads on the pump when you installed the new one? I know some pumps require a new pigtail to be sliced in.

[This message has been edited by maryjane (edited 06-16-2004).]

Would the fuel pump still run at all if the leads were reversed?

I would think it would blow the fuse, but not sure.

Thats what I would think too, that's why I can't see how its not wired properly

Sorry,but it looks like you may need to drop the tank again (check your fuses first).Some manufacturers of fuel pumps reverse wire the pump,for example the stock pump should be, small prong + and the wide prong -- negitive.The new pump may be like this (reverse wired) ,small prong -- negative and the wide prong positive.To make matters worse they dont always mark the prongs + and -- like the stock pump.Your pump may be running but possibly in reverse.I also use metal hose clamps on the ruber portion of the fuel pump hose,the metal clamps will keep the fuel pump from poping off the ruber hose.A thin coating of oil on the tanks ruber "O ring" will keep it from kinking when installing the lock ring.Also check your wireing connections.But first check your fuses,then check to see if you got fuel flowing (you can dissconnect the fuel line were ever it's easyiest,like pressing the schrader valve (or possibly by the fuel filter).

[This message has been edited by James Bond 007 (edited 06-19-2004).]