Mike, I bought the car with that pump on it. Considering the troubles I have with the car I would NOT recommend it to anybody. There are many advantages to having an in-tank pump. That's why almost all the new cars have the pump mounted in the tank. The fuel cools and lubricates the pump, the fuel dampens the buzz from the pump, and you don't have to worry about fuel starvation since the pickup is immersed in the tank. >From what I can tell on an 80's Imperial the fuel outlet is on the top of the tank. This means that if you put an external pump it will have to pull the fuel up the tube. Most of the time people put an external pump in to avoid having to drop the tank, btu you'd probably be better off changing the tank to a bottom outlet. Also if you don't drop the tank you're not going to remove the old pump. This means your new pump is pulling the gas through the old faulty, maybe damaged pump and the 20+ year old sock filter. I believe these items are the main contributors to my problem. IF you're going to change the tank you might as well just replace the in-tank. Rob Nobody knows a source for the check valves? >From: "michael popp" <popp@xxxxxxxxxxxxxx> >Reply-To: mailing-list@xxxxxxxxxxxxxxxx >To: <mailing-list@xxxxxxxxxxxxxxxx> >Subject: Re: IML: EFI starting problems (was-still is : Fuel line check >valve) >Date: Wed, 18 Aug 2004 23:31:13 -0500 > >Rob---Do you have a part # for your 13# external fuel pump?---Thanks---Mike >Popp _________________________________________________________________ On the road to retirement? Check out MSN Life Events for advice on how to get there! http://lifeevents.msn.com/category.aspx?cid=Retirement