Question about 1998 Chevrolet Tahoe

2 Answers

Need exact procedure for removing the fan and clutch fan pieces so that I can remove the water pump. There must be one more thing to loosen besides the four bolts (13mm) on the fan blades and the four bolts (10mm) on the smooth belt pulley that attachs to the front of the pump. What am I missing? 5.7 Vortec with AC.

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  • Anonymous Aug 22, 2008

    After removing the four pully bolts and removing the bolts behind the fan itself,I find a large nut that somehow must be removed before I can get the pully,fan and clutch off ?

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2 Answers

Leave the fan belt in place and it will hold the pulley and fan in so you are able to remove the large nut that is behind the fan

Posted on Sep 18, 2008

I am going through the same thing.  I can't give you specifics but I do know that you need a specialized tool to pull the fan clutch.

Posted on Jul 29, 2008

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2 Answers

Get a the fan off a 1997 expedition


should be 4 bolts and ya prolly need fan clutch toolmto loosen part of fan

Nov 10, 2012 | Cars & Trucks

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HOW TO REPLACE CLUTCH FAN


to remove clutch fan you need to remove upper fan shroud, you need large wrench to remove the fan clutch retaining nut to remove fan and clutch away from the engine drive belt should keep pulley from turning while loosen fan clutch retaining nut.if pulley belt turns while loosen fan clutch bolt remove drive belt use strap wrench hold pulley while you remove fan clutch bolt this procedure for checvrolet if you working on volkswagon you need spanner wrench hold the idler pulley while you use large wrench to loosen the large drive nut to fan clutch. you have to remove fan with clutch from engine then you can remove clutch from fan you can go to auto parts stores rent a spanner wrench try auto zone they rent out tools.

Jan 05, 2012 | Cars & Trucks

1 Answer

Need instruction for replacing water pump 2004 GMC Envoy 4.2 liter engine.


TO REPLACE WATER PUMP.FIRST YOU HAVE TO DRAIN THE COOLANT SYSTEM. REMOVE AIR INTAKE DUCT AND RESONATOR. REMOVE THE RADIATOR SHROUD AND FAN CLUTCH ASSEMBLY REMOVE THE DRIVE BELT. REMOVE WATER PUMP PULLEY.YOU NEED A PIN SPANNER WRENCH OR STRAP WRENCH TO HOLD WATER PUMP PULLEY WHILE LOOSEN WATER PUMP PULLEY BOLTS .YOU CAN BUY STRAP WRENCH OR RENT PIN SPANNER WRENCH AT AUTO ZONE PARTS STORES OR OTHER STORES HAS TOOLS CAN BE RENT. ONCE WATER PUMP PULLEY REMOVED. REMOVE THE WATER PUMP MOUNTING BOLTS. REMOVE WATER PUMP. IF WATER PUMP STUCK YOU CAN TAP WITH SOFT FACE HAMMER OR A LONG PIECE OF ROUND WOOD.WHEN WATER REMOVED.YOU NEED TO CLEAN THE SEALING SURFACE CAREFUL DONT SCRATCH SEALING SURFACE. YOU CAN BUY CAN OF SPRAY GASKET REMOVER.CLEAN SURFACE GOOD THEN WIPE WITH LACQUER THINNER OR ACETONE.THEN GET WATER PUMP NEW GASKET MATCH HOLES UP WITH GASKET TO WATER PUMP. ONCE HOLES MATCH UP APPLY RTV SEALANT ON BOTH SIDES WATER PUMP GASKET. THEN PUT GASKET ON WATER PUMP THEN INSTALL WATER PUMP TO VECHICLE.TORQUE WATER PUMP BOLTS TO 89 INCH LBS .TIGHTEN WATER PUMP PULLEY BOLTS TO 18 FT LBS THEN PUT EVERY THING BACK VISA VERSA.

Aug 26, 2011 | GMC Envoy XL Cars & Trucks

1 Answer

How to remove fan clutch from water pump 2003 Chevy trailblaer. Cause I already removed the water pump alog with fan clutch!


since u removed the pump and fan assembly already place the pump carefully in a vice or some thing that will hold pump than use a strap wrench to hold the pulley and than unbolt the large nut it is a reverse thread so clockwise to loosen and counter clockwise to tighten

Jul 25, 2011 | 2003 Chevrolet TrailBlazer

1 Answer

I need to remove the cooling fan shroud from my 1995 Lincoln Continental. How is the easiest way to go about this?


Engine Fan REMOVAL & INSTALLATION 3.8L Engines
  1. Disconnect the negative battery cable.
  2. Remove the radiator upper sight shield.
  3. Disengage the electrical connector, then remove the integrated relay control/constant control relay module assembly located on the radiator support.
  4. Disconnect the fan electrical connector. Fig. 1: Disengage the fan electrical connector 86873115.jpg

  5. If necessary, remove the air bag crash sensor.
  6. Unbolt the fan/shroud assembly from the radiator and remove. Fig. 2: Unbolt the fan assembly from the radiator 86873116.jpg
    Fig. 3: Remove the fan from the engine 86873117.jpg
    Fig. 4: Slide the fan as an assembly up and away from the radiator. Be careful not to dislodge the mounting stud on the left side. 93143p56.jpg

  7. Remove the retainer and the fan from the motor shaft and unbolt the fan motor from the shroud.
  8. Installation is the reverse of the removal procedures. Tighten the fan shroud retaining bolt to 23–33 inch lbs. (2.6–3.7 Nm). Tighten the fan shroud retaining nut to 71–106 inch lbs. (8–12 Nm). Fig. 5: Constant control relay module location — 3.8L engines 86873118.gif
4.6L Engine
  1. Loosen the fan clutch-mounting shaft from the water pump hub.
  2. Loosen the fan shroud from its radiator mounting and remove the lower hose from the shroud.
  3. Lift the fan and clutch assembly and the fan shroud from the vehicle.
  4. If necessary, remove the fan-to-fan clutch retaining bolts and separate the fan from the fan clutch. CAUTION
    Closely examine the fan for cracks or separation, to avoid the possibility of personal injury or vehicle damage. To install:
  5. Assemble the fan and fan clutch. Tighten the retaining bolts to 15–20 ft. lbs. (20–27 Nm).
  6. Install the fan and clutch assembly and the fan shroud. Mount the fan clutch shaft to the water pump hub and tighten to 37–46 ft. lbs. (50–62 Nm).
  7. Slip the shroud into the lower mounting clips and install the shroud retaining screws. Fig. 6: Fan and fan clutch assembly — 4.6L engine 84173064.jpg
5.0L Engines
  1. Loosen the fan clutch-to-water pump hub retaining bolts.
  2. If necessary, remove the drive belt from the water pump pulley.
  3. Remove the fan shroud upper retaining screws. Lift the shroud to disengage it from the lower retaining clips.
  4. Remove the fan clutch-to-water pump hub bolts and remove the fan and clutch assembly and the fan shroud.
  5. If necessary, remove the fan-to-fan clutch retaining bolts and separate the fan from the fan clutch. CAUTION
    Closely examine the fan for cracks or separation, to avoid the possibility of personal injury or vehicle damage. To install:
  6. Assemble the fan and fan clutch. Tighten the retaining bolts evenly and alternately to 12–18 ft. lbs. (16–24 Nm).
  7. Install the fan and clutch assembly and the fan shroud.
  8. Install the fan clutch-to-water pump hub bolts.
  9. Slip the shroud into the lower mounting clips and install the shroud retaining screws.
  10. If removed, install the water pump drive pulley and adjust the belt tension; refer to Section 1.
  11. Tighten the fan clutch-to-water pump hub bolts evenly and alternately to 15–22 ft. lbs. (20–27 Nm). Recheck the belt tension.
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Jul 14, 2010 | 1995 Lincoln Continental

1 Answer

How to remove a water pump


Locate water pump.. It's where the bottom radiator hose goes from the radiator. Remove any brackets or parts that are in your way. Remove water pump! Reverse procedure for installation. You have to remove the fan clutch from the water pump shaft and lift the shroud, fan and clutch all out together. remove two bolts in the center radiator support which let the radiator move forward an inch or so, loosen the fan from the clutch for a little more wiggle room to get it out. The shroud will have rubber splash shields hooked to the lower sides too, so be sure to unhook them or you will tear out the holes in the rubber shields.The fan clutch has to come off anyway because it's attached to the water pump. You don't need to remove the fan shroud. Just take out two bolts on the fan clutch and loosen the other two so you can push the clutch back a little (DON'T let the fan clutch fall). Then remove the water pump. It's a little tight, but much easier than removing the fan shroud.the only specialty tool that you will need is the water pumpt "grab" tool and the fan clutch wrench. These two items come together in one kit that you can rent from the Auto Parts store.
The "grab" tool holds the water pumpt pully firmly while you rotate the fan clutch retainer using the fan clutch wrench.

DO NOT attempt to use a break over bar or some other home-grown tool to hold the water pump pully while attempting to break the fan clutch free - you will mess up the heads of the four retainer bolts holding the pully to the water pump face.
this will help.thanks.

Feb 21, 2010 | 2006 GMC Envoy

2 Answers

Do I have to remove the fan first from thermal fan clutch before removing? Also, where exactly is the water pump located, and how do I remove and replace from my 2000 Astro Van.


the water pump is in the middle of the engine the pulley inthe center is the pump you need to take the radiator and fan off loosen the belt take the pump off then replace it with new one with a gasket already set slip it back on the engine

Nov 11, 2009 | 2000 Chevrolet Astro

1 Answer

How to change water pump (1997 sonoma)


The text below is from the GM Service manual 4.3L V6 Engine
Water Pump Replacement (4.3L)
Removal Procedure
Drain the cooling system. Refer to Draining and Filling Cooling System .
Loosen the water pump pulley bolts.
Remove the cooling fan and clutch assembly.

Tools Required
J 46406 Fan Clutch Wrench

Removal Procedure
Remove the upper fan shroud.
Remove the fan clutch from the water pump in a counterclockwise direction using the J 46406 .
Remove the fan clutch assembly.
Remove the drive belt. Refer to Drive Belt Replacement Remove the water pump pulley mounting bolts.
Remove the water pump pulley.
Remove the radiator outlet hose clamp from the water pump.
Remove radiator outlet hose from the water pump.
Remove the water pump mounting bolts.
Remove the water pump from the engine.
Remove the water pump gaskets.
Clean the water pump gasket mating surfaces.
Installation Procedure
Install the water pump gaskets.
Install the water pump to the engine.
Apply a sealer (GM P/N 12346004) to the bolt threads.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Install the water pump mounting bolts.
Tighten
Tighten the mounting bolts to 41 N·m (30 lb ft).
Install the radiator outlet hose to the water pump.
Install the water pump pulley.
Install the water pump pulley bolts.
Tighten
Tighten the water pump pulley bolts to 25 N·m (18 lb ft).
Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 4.3L.
Install the fan clutch assembly.
Fill the radiator cooling system. Refer to Draining and Filling Cooling System .
Inspect the cooling system for leaks.

Oct 01, 2009 | 1997 GMC Sonoma

1 Answer

Water pump


Please RATE ME
This IS EXACT Procedure Bu The BOOK
REMOVAL
  1. Drain cooling system.
  2. Loosen fan clutch attaching bolts.
  3. Remove fan shroud attaching bolts and remove shroud and fan.
  4. Remove drive belt.
  5. Disconnect lower radiator hose, heater hose and bypass hose from water pump.
  6. Remove fan, spacer, water pump pulley and fan shroud.
  7. Remove A/C compressor/power steering pump bracket and accessories to clear water pump stud bolt.
  8. Remove water pump attaching bolts and the water pump.
INSTALLATION
  1. Reverse procedure to install. Tighten water pump retaining bolts to 12-18 ft. lbs.
NOTE: All water pumps have a sealed bearing integral with the water pump shaft. The bearing requires no lubrication. A bleed hole in the pump housing allows water that may leak past the seal to be thrown out by the slinger. This is not a lubrication hole. If the pump is damaged and requires repair, replace it with a new pump or a rebuilt one.
I Need your Help Also !! PLEASE RATE ME

Jan 27, 2009 | 1995 Ford F250

1 Answer

Fan removel of water pump


You need a clutch fan removal tool which is just a large open end wrench that is thin. Place the wrench on the fan clutch and give it a smack with a hammer to loosen it. It removes counter clockwise. You may have to hit it a couple of times to loosen it.

Dec 16, 2008 | 1999 Chevrolet Blazer

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