Water Pump Replacement - Diesel Forum - TheDieselStop.com
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 04-23-2011, 07:54 AM Thread Starter
Join Date: Apr 2002
Location: Central Florida
Posts: 65
My Photos: (0)
Feedback Score: 0 reviews
Water Pump Replacement

I am in the middle replacing the water pump on my 99 7.3L F250 and I noticed the impeller blades on the new pump (AirTek) slightly touch the pump housing. The impeller spins fine but on the old pump I pulled off the truck there is a gap and no contact. Do I need to return the new one or will it wear into the slight gap?

'99 (pre 12/98) F250 PSD 4X4 Off Road and Towing packages
Gator97dwb is offline  
Sponsored Links
post #2 of 5 (permalink) Old 04-23-2011, 08:36 AM
Lifetime Supporting Member
Lifetime Supporting Member
woodnthings8's Avatar
Join Date: Jan 2007
Location: Washington State
Posts: 3,566
My Photos: (4)
Feedback Score: 0 reviews
I would not install it. Take it back and see if the other ones do that.

2002 F-350 CCLB 4X4, HD4R100 , Riffraff FRx, Riffraff CAC Boots & PRI's, Bellowed Up-Pipes, 4" Diamond Eye exhaust, Powerslot rotors, ATS Ported Compressor Housing, DP Tuner-F6, Autoenginuity, EEC-V Breakout Box, KCM S.S. HPX Line, S&B Filters intake, Quad Autometer gauge pod, Inovations canopy, Banks Big Head wastegate actuator, 6.0L Trans Cooler, Spin-on Transmission filter with custom bracket, Zoo-dad, Dieselsite Coolant Filter, Cobra 29LTD/NW CB, DVD and always looking to do more....

Powerstroke Acronyms

TSB Information
woodnthings8 is offline  
post #3 of 5 (permalink) Old 04-24-2011, 04:12 PM
Senior Member
Join Date: Sep 2001
Location: Kirkland
Posts: 365
My Photos: (0)
Feedback Score: 0 reviews
I'd say get a new one. I bought a Ford Waterpump last year, and I too had just a bit of impeller rub on the housing. I also noticed that the seal would squeal just a little bit when I started to turn the impeller.

I took the pump back, and the dealer replaced it no questions asked.

Good luck in the changeout!

2002 F250 XLT 4WD SC SB with 6 Speed and Manual Shift Transfer Case. Pillar pod-o-gauges, Warn Premium Hubs, AIS, Fumoto, Edge 3 leveling kit on the front (with adjustable track bar), 4 blocks on the rear, Eaton Posi, Bilstein 5100s and 285 X 75 X 16 BFG MTs all around. Oil pan coated with POR-15. Fleetrite ELC and Dieselsite coolant filter (plus new water pump). New O-Rings on the injectors.
Shamish is offline  
post #4 of 5 (permalink) Old 04-24-2011, 04:58 PM
Senior Member
Join Date: Dec 2002
Location: Central Alabama, USA
Posts: 2,012
My Photos: (0)
Feedback Score: 0 reviews
Something is not right with that particular pump. A couple of years ago I bought a new OEM pump from DIESELSITE.com to have a spare and it was a good deal at the time. I still have it in the box in my shop have not needed to install it . The impeller on the new pump I have does not rub the housing. Take that one back and get another, I wouldn't install that one. 106

2002 F250 7.3L PSD, bought new now at 202K miles, 4R100 Auto, Crew Cab, Short Bed, ITP Regulated Fuel Return system, ITP head to head SS oil cross over, Hutch in tank mod
Harpoon de tank vent, DIESELSITE Dahl 100 Pre-Pump Fuel Filter, DIESELSITE Return Fuel Line Cooler, DIESELSITE Engine Coolant Filter, DIESELSITE Auxilliary Transmission Cooler, DIESELSITE Gage Package, Pyro, Trans & Boost, Extreme Diesel AD injectors, Ford AIS Air Filter System, BTM straight through muffler, Moog Ball Joints, Rancho Shocks, Rotella ELC Coolant ,Stock Engine Program
Modified for I-Pod Connection
We b playing Scotland The Brave to Jimmy Hendrix
Oneof6 is offline  
post #5 of 5 (permalink) Old 04-25-2011, 06:26 PM
Senior Member
Join Date: Nov 2010
Location: Greensboro, NC
Posts: 813
My Photos: (0)
Feedback Score: 0 reviews
Just a thought....

If you buy a water pump for a 95', you can use a OEM 205 thermostat, which should run a little better than a 195.
txgp17 is offline  
Sponsored Links

  Diesel Forum - TheDieselStop.com > 1999-2007 Ford Super Duties > '99 & up 7.3L Power Stroke Engine and Drivetrain

Quick Reply

Register Now

In order to be able to post messages on the Diesel Forum - TheDieselStop.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome