Member Introduction New to the forum? Stop in and introduce yourself! If you have a tech question, check out the General Technical Section

1994 Concours Fuel Pump Confusion

Old 06-22-2015, 11:35 AM
Junior Member
Thread Starter
Join Date: Jun 2015
Posts: 1
Default 1994 Concours Fuel Pump Confusion

I have a 1994 Cadillac Concours with about 125K. About a month ago it would quit running while I was driving. I could stop and start it again and it would start and run OK. After several checks I found that the fuel pump pressure was about 20lbs and should be a minimum of 38lbs. (I have the FSM)

I pulled the tank and discovered I had the EPT (early version) fuel pump and sending unit. I grabbed a Denso at O'Riley's and I am having trouble getting the replacement Denso to work. I looked at the AC Delco replacement (EP307) and it has some language that sounds like it should only be used with the EPV (second version).

The early version (EPT) has three clip-on ports on top of the sending module. The second version has two clip on ports and a third (middle ) on top that is shorter than the outer two. I question whether the clip will work on the middle port on the EPV if I try to use the EPV sending unit. It appears that the EPT/EPW sending unit and pump assemblies are not interchangeable with the EPV because of the connections. However, the language about using the AC Delco EP307 pump with the EPV is confusing.

Does anyone have any clue as to what can and can't be done with these two different fuel pumps?
Related Topics
Thread Starter
Last Post
Cadillac Deville
04-20-2010 04:02 PM
don jacobs
Cadillac DTS
11-25-2009 09:20 AM
Cadillac Deville
08-03-2009 04:01 PM
General Tech
03-07-2008 03:36 AM
Cadillac Deville
08-01-2007 04:20 PM

Thread Tools
Search this Thread
Quick Reply: 1994 Concours Fuel Pump Confusion

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.