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#2112308 - 12/20/10 08:45 PM Replaced '05 Suburban 5.3 water pump: easy DIY job
Islandvic Offline


Registered: 02/01/05
Posts: 1212
Loc: South Texas
My 2005 Suburban Z-71 w/ 5.3 was leaking coolant yesterday. It was coming from bottom of pump.

About two months ago I flushed the system (DIY) with Prestone Radiator Cleaner then some new Prestone Dex-Cool.

I do not believe the flush had anyting to do with the leak.

I was able to buy from a wholesaler an OEM water pump, T-stat, gasket, and lower AC serpentine belt (all parts OEM AC DELCO) for $203 including tax. Reasonable to me.

Tools needed:
Channel Lock Pliars
3/8" drive socket wrench
Drive extension
15mm socket
10mm socket
Flat head screw driver

Thats it, very easy removal and instalation. I believe the same tools are needed for all GM full size trucks, SUV's.


I even found a 2 part youtube video. VERY informative.

The inside of the pump looked clean with no scaling or gunk build up.

Good luck

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#2112320 - 12/20/10 08:55 PM Re: Replaced '05 Suburban 5.3 water pump: easy DIY job [Re: Islandvic]
Burt Offline


Registered: 01/08/09
Posts: 1065
Loc: texas
Wonderful and glad to hear it. And they say cars are too hard to work on.
_________________________
2011 RX350 26k miles
1998 Windstar 203k miles and runs like new, well sort of.
Original owner, tranny and head gasket.

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#2112341 - 12/20/10 09:24 PM Re: Replaced '05 Suburban 5.3 water pump: easy DIY job [Re: Islandvic]
finalyzd Offline


Registered: 11/24/09
Posts: 510
Loc: fairfield,CA
How long did it take you? Annd did you have to remove the fan clutch?
_________________________
2007 Nissan 350z
Redline 0w30/M1-110
MT-85
Hummer H3
Pentosyn 5w30
Maxlife ATF

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#2112402 - 12/20/10 10:31 PM Re: Replaced '05 Suburban 5.3 water pump: easy DIY job [Re: Islandvic]
dgee Offline


Registered: 02/03/10
Posts: 427
Loc: Connecticut
-___- i had to replace the water pump on my 96 Jeep 4.0 TWICE in ONE year. first one was faulty and cracked after 8 months.
_________________________
12 Accord 2.4 4k - FF 0W20
01 Camry V6 265k - PU 10W30
96 Jeep ZJ I6 173k - Maxlife 10w30
94 Jeep ZJ I6 365k - Formula Shell 10W30

O||||||O

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#2112588 - 12/21/10 08:00 AM Re: Replaced '05 Suburban 5.3 water pump: easy DIY job [Re: dgee]
cchase Offline


Registered: 11/03/09
Posts: 3999
Loc: New England
Originally Posted By: dgee
-___- i had to replace the water pump on my 96 Jeep 4.0 TWICE in ONE year. first one was faulty and cracked after 8 months.


And every time you do it, the job goes a little faster. I know the feeling.

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#2112598 - 12/21/10 08:08 AM Re: Replaced '05 Suburban 5.3 water pump: easy DIY job [Re: Burt]
Vikas Offline


Registered: 07/22/05
Posts: 8446
Loc: NorthEast
Originally Posted By: Burt
Wonderful and glad to hear it. And they say cars are too hard to work on.


You are the first person who thinks Suburban is a C A R :-)

- Vikas

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#2112660 - 12/21/10 09:20 AM Re: Replaced '05 Suburban 5.3 water pump: easy DIY job [Re: Islandvic]
Chris142 Offline


Registered: 06/05/03
Posts: 11742
Loc: apple valley, ca
Those pumps are super easy to replace! I've only replaced 1 due to the pump leaking. Usually the gaskets behind the pump leak. Most customers opt to replace the pump while I have it off to replace the gaskets.
_________________________
02 Wrangler qsgb 5w30
87 F250 Diesel Mag1 5w40
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Z400 maxima 20w50
KLR250 Maxima 10w40
Polaris Trailblazer delo 5w40

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#2113806 - 12/22/10 10:32 AM Re: Replaced '05 Suburban 5.3 water pump: easy DIY job [Re: Islandvic]
Islandvic Offline


Registered: 02/01/05
Posts: 1212
Loc: South Texas
finalyzd, you asked about the fan clutch...

Mine has dual electric fans. I didnt have to remove them or the fan shrouds.

If I did it again, I could remove and replace in about an hour.

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#2114013 - 12/22/10 01:57 PM Re: Replaced '05 Suburban 5.3 water pump: easy DIY job [Re: Islandvic]
Rhymingmechanic Offline


Registered: 08/13/04
Posts: 823
Loc: VA
I replaced the pump on a 2001 Silverado with a mechanical fan. That was an easy job EXCEPT for the fan clutch. None of the parts stores had the proper tool in their loaner program or for sale. I finally borrowed something from NAPA that worked when I rigged it up with two small bolts and some nuts and washers. A tool is needed to hold the pulley while you unscrew the clutch with a big crescent wrench.

The pump was leaking from the weep hole, but the gaskets looked pretty bad and could have been leaking, too.

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