Labor hours to replace water pump on 2004 gmc envoy . Water pump is vibrating

new water pump is about 120.00 and labor is 1.5 hours suggest new coolant if not been done.

Yup. It hasn't started leaking yet but it will soon. Get the pump replaced.

Disconnect the exhaust before the catalytic convertor and test drive 2004 to 2008 and above GMC catalytic tend to plug easy, If the catalytic is to difficult to disconnect, plus you need to secure from falling remove the 02 sensor on each bank before the catalytic,this may be a easy approach.Just to let you what effects the performace of the MAP sensor is a plug exhaust,it creates back pressure.And a IAT sensor goes 10% higher, Another problem the Envoy has is water intrusion into the spark plug recessed area creating misfire and rough idle, the water get past the COP (coil on plug),

This should be a 1 to 1-1/2 hour job. Also, have the mechanic change the thermostat and temperature sensor while he is at it, if they have not ever been changed.

Hello! This is a known problem that is addressed by the following Technical Service Bulletin...Guru...saailer

Subject:Steering System Moan, Groan, Shudder and/or Vibration Type Noise During Low Speed Turning Maneuvers (Replace Steering Gear) #04-02-32-007A - (12/01/2004) Models:2004-2005 Buick Rainier
2003-2005 Chevrolet TrailBlazer, TrailBlazer EXT
2003-2005 GMC Envoy, Envoy XL
2004-2005 GMC Envoy XUV
2003-2004 Oldsmobile Bravada
Short Wheelbase Utilities Built Prior to VIN Breakpoint 52123375
Long Wheelbase Utilities Built Prior to VIN Breakpoint 56137280
This bulletin is being revised to remove the 2002 model year and add the long wheelbase utilities. Please discard Corporate Bulletin Number 04-02-32-007 (Section 02 -- Steering).

ConditionSome customers may comment on a moan, groan, shudder and/or vibration noise while making low speed turning maneuvers. Customers usually notice this condition in parking lot turning maneuvers.
Correction

1. Diagnose the power steering concern. Refer to Symptoms - Power Steering System (SI Document ID #670351).
2. Replace the steering gear with a newly designed steering gear. See the parts information below. Refer to Power Steering Gear Replacement (SI Document ID #742314).

Parts Information

Part Number

Description

Qty
88965356
Gear Kit, Steering
(Short Wheelbase Utilities)
1
88967181
Gear Kit, Steering
(Long Wheelbase Utilities)
1
Warranty InformationFor vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time
E9740
Gear Assembly, Power Steering - Replace
Use published labor operation time
E2000
Toe, Front - Adjust

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

Since I don't know the configuration of your engine, I can't give you a good answer. But, if the pump is inside your timing cover, and is run off the timing belt, a rough estimate would be about 4 hours labor time. Just a guess, Dale.

Sound more like the fan clutch has failed.

This is caused by a failure of the water pump bearing. The water pump must be replaced. If you would like instructions on replacing the water pump yourself or have any more questions, please let me know.

If the fan is attached to it than it is the water pump making the noise and it will need to be replaced. If the fan clutch is not attached to it than it is either the idler pulley or the tensioner pulley. The tensioner is on the passenger side (left) of the front of the motor.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

The water comes from exhaust system /condense/ because the check valve does work properly. The check valve is located on left top side of the engine where the hoses from the air pump connect to the exhaust.