Cars & Trucks Logo
Posted on Nov 06, 2009
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

How to replace a water pump on a 2003 yukon - 2003 GMC Yukon

1 Answer

Roy Funkhouser

Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

Governor:

An expert whose answer got voted for 20 times.

Scholar:

An expert who has written 20 answers of more than 400 characters.

  • Expert 140 Answers
  • Posted on Nov 07, 2009
Roy Funkhouser
Expert
Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

Governor:

An expert whose answer got voted for 20 times.

Scholar:

An expert who has written 20 answers of more than 400 characters.

Joined: Aug 06, 2009
Answers
140
Questions
0
Helped
100270
Points
391

Water Pump Replacement (4.8L, 5.3L and 6.0L Engines)
Removal Procedure
1. Drain the cooling system.
2. Loosen the air cleaner outlet duct clamps at these locations:
 Throttle body
 Mass Airflow/Intake Air Temperature (MAF/IAT) sensor
3. Remove the radiator inlet hose clip from the outlet duct.
4. Remove the air cleaner outlet duct.
5. If necessary, remove the engine sight shield.
6. Remove the radiator vent inlet hose from the radiator hose clips.
7. Reposition the inlet hose clamp at the water pump.
8. Remove the inlet hose from the water pump.
9. Remove the fan blade.
11. Reposition the outlet hose clamp at the water pump.
12. Remove the outlet hose from the water pump.
13. Reposition the surge tank outlet hose clamp at the water pump.
14. Remove the surge tank outlet hose from the water pump.
15. Reposition the heater inlet hose clamp at the water pump.
16. Remove the heater inlet hose from the water pump.
17. Remove the water pump bolts.
18. Remove the water pump and gaskets.
19. Discard the water pump gaskets
Installation Procedure Important: All gaskets surfaces are to be free of oil or other foreign material
during assembly.
1. Install the water pump and NEW gaskets
2. Install the water pump bolts.
3. Install the heater inlet hose to the water pump.
Zoom Sized for Print
Notice: Refer to Fastener Notice in Service and Precautions.
2.1. Tighten the bolts a first pass to 15 Nm (11 ft. lbs.).
2.2. Tighten the bolts a final pass to 30 Nm (22 ft. lbs.).
4. Position the heater inlet hose clamp at the water pump.
5. Install the surge tank outlet hose to the water pump.
6. Position the surge tank outlet hose clamp at the water pump.
7. Install the outlet hose to the water pump.
8. Position the outlet hose clamp at the water pump.
9. Install the accessory drive belt.
10. Install the fan blade.
11. Install the inlet hose to the water pump.
12. Position the inlet hose clamp at the water pump.
13. Install the engine vent inlet hose to the radiator hose clips.
14. If necessary, install the engine sight shield.
Important: Align the arrow at the throttle body end of the duct with the throttle
body attaching stud.
15. Install the air cleaner outlet duct
16. Install the radiator inlet hose clip to the outlet duct.
17. Tighten the air cleaner outlet duct clamps at these locations:
 Throttle body
 MAF/IAT sensor Tighten the clamps to 7 Nm (62 inch lbs.).
18. Fill the cooling system.

I hope this helps. The numbering is incorrect in the sequence but the instructions are correct.

Roy

1 Related Answer

Molson02536

Harvey N Tawatao

  • 3854 Answers
  • Posted on Sep 04, 2009

SOURCE: 2003 GMC Yukon - fuel pump

Check your ECM fuse. There should be 2 fuses for your ECM. It's the ECM that controls the function of the fuel pump. Good luck friend and it's also common for the wire harness from the frame to the fuel pump to go bad due to corrosion from the bad weather we get in the winter and rainy spring and fall. 

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1helpful
1answer

How to check a radiator in a 2003 gmc yukon

it is over heating,thermostat stuck close,water pump weak.
1helpful
1answer

My windshield washer pump will not run on my 2003 GMC Yukon. I have replaced the pump, checked the fuses in the left inst. panel area (25 amp) and under the hood (15 amp).

you didnt mention if you checked the RELAY??? you should be able to swap it with another relay in the fuse box, the map will show you which one it is. The 25 amp powers the wiper motor, the 15amp the pump.
0helpful
2answers

I have a 2003 yukon Problem with the GMC Yukon XL

What size engine ? 4.3 L vortex P0300 random misfire code is usually associated with vacuum leaks , but could also be low fuel pressure , plugged fuel filter , fuel pump problem , clogged injectors etc... doing fuel pressure an flow testing would confirm or eliminate that as a problem . Fuel injector balance testing would confirm or eliminate clogged injectors .
1helpful
1answer

Were can I buy a fuel pump for 2003 yukon xl denali

Hi, you can get the fuel pump to you 2003 Yukon XL Denali from Auto Parts Warehose for $166.16 with free shipping within the U.S.A. Contact them on 1-877-809-1467...
3helpful
1answer

Leaking radiator fluid from fan pulley? 2004 GMC Yukon Denali. How can i fix this?

you need to replace your water pump. The pulley you speak of is on the water pump, and when the seal goes out, it leaks in that specific spot.
0helpful
2answers

2003 GMC Yukon - fuel pump

Have you verified voltage at the fuse and fuel pump relay. There is one fuse in the underhood fuse box.
Let me know.
Regards,
2helpful
1answer

Thermostat for 2001 GMC Yukon XL

Not true,Although,it is located in the pump,You don't need to replace the pump if the thermostat is replace.See pix
338a358.jpg56f157c.jpg
1helpful
1answer

2002 Yukon water pump replacement

try hitting clutch fan nut three times with bar and hammer and use adjustable wench to turn other wise you will need two tools can borrow from dealer of a parts shop one to wold water pump pully other to turn clutch nut.
Not finding what you are looking for?

2,879 views

Ask a Question

Usually answered in minutes!

Top GMC Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

john h

Level 3 Expert

29494 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...