How do I remove the water pump on GMC Sonoma?

To remove the water pump, start by disconnecting the battery cable from the negative battery terminal. Then, drain the coolant and remove the upper radiator shroud and fan/clutch assembly. Next, take off the serpentine belt and water pump pulley. Disconnect the radiator hose and heater hose from the water pump. Unbolt the water pump, tapping it with a soft-lace hammer if necessary to break the gasket seal. Inspect the pump's impeller blades for corrosion and replace the pump if needed. To install the new water pump, clean the sealing surfaces of all gasket material on both the pump and block. Apply a thin layer of RTV sealant to both sides of the new gasket and install it on the water pump. Place the water pump in position and tighten the bolts to the specified torque. The rest of the installation procedure is the reverse of the removal. Finally, add coolant to the specified level, start the engine, and check for leaks in the water pump and hoses. Bleed the cooling system of any air.

What are the three quick-checks to determine if the water pump is functioning properly while it is still installed on GMC Sonoma?

Water pump failure can cause overheating and engine damage. There are three quick-checks to determine if the water pump is functioning properly. If any of these checks indicate problems, immediate replacement is necessary. One way to check is to inspect the weep hole for coolant leakage. Another way is to listen for a high-pitched squealing sound from the water pump. Excessive bearing wear can be identified by moving the water pump pulley. It is important to note that a water pump can be faulty even without howling or leaking water. To check for this, the pump must be removed.

Genuine GMC Sonoma Water Pump

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6 Water Pumps found

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GMC Sonoma Engine Coolant Pump Kit
Part Number: 89060527
$216.27 MSRP: $429.11
You Save: $212.84 (50%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Kit,Water; Water Pump, Water Pump Assembly
- Replaces: 12528917, 89017748, 12532528
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2004 GMC Sonoma | 4 DOOR, PICKUP, PICKUP EXTENDED CAB | 6 Cyl 4.3L
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GMC Sonoma Water Pump Kit
Part Number: 19417097
$127.28 MSRP: $252.53
You Save: $125.25 (50%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump Kit,Wat; Water Pump, Water Pump Assembly
- Replaces: 19201601, 88894005, 12532531, 12532529, 12369487
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1995 GMC Sonoma | PICKUP | 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 4.3L
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GMC Sonoma Engine Coolant Pump Kit
Part Number: 19309748
$57.43 MSRP: $103.02
You Save: $45.59 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Kit,Water ; Pump Kit, Engine Coolant
- Replaces: 88926166
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1993 GMC Sonoma | PICKUP | 4 Cyl 2.5L
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GMC Sonoma Engine Coolant Pump Kit
Part Number: 12491038
$134.60 MSRP: $230.74
You Save: $96.14 (42%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Kit,Water ; Pump Kit, Engine Coolant; Water Pump, Water Pump Assembly
- Replaces: 12458920, 10181327
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1993 GMC Sonoma | PICKUP | 4 Cyl 2.5L
View related parts
GMC Sonoma Engine Coolant Pump Kit
Part Number: 12462265
Product Specifications
- Other Name: Pump Kit,Water; Water Pump, Water Pump Assembly
- Replaces: 12363169, 12518443
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-2003 GMC Sonoma | PICKUP | 4 Cyl 2.2L, 4 Cyl 2.2L Flex
View related parts
GMC Sonoma Water Pump Kit
Part Number: 12482690
Product Specifications
- Other Name: Pump Kit,Water; Water Pump
- Replaces: 10120943
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1993 GMC Sonoma | PICKUP | 6 Cyl 2.8L

GMC Sonoma Water Pump

The Water Pump in GMC Sonoma cars is relied on for circulating coolant from the radiator to the engine block to harmonize with the heat produced during combustion. Many Sonoma models employ a belt driven water pump with an impeller to circulate coolant within the engine block or to the radiator. Whereas, the old water pumps were basically of cast iron structure, current type is of aluminum castings; The shaft has bearings and the leakage preventer is referred to as a seal. Signs of a defective water pump are such things as, coolant leakage, loud vibrations due to gone bad bearings and one more is when the engine is overheating. On high-performance engines, improved water pumps that supply better flow of coolant can be obtained, electric pumps with no crankshaft power draw and higher install compatibility.

Each OEM GMC Sonoma Water Pump we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

GMC Sonoma Water Pump Parts Questions & Experts Answers

Engine Coolant Pump Kit
12462265
Q: How do I remove the water pump on GMC Sonoma?
A: To remove the water pump, start by disconnecting the battery cable from the negative battery terminal. Then, drain the coolant and remove the upper radiator shroud and fan/clutch assembly. Next, take off the serpentine belt and water pump pulley. Disconnect the radiator hose and heater hose from the water pump. Unbolt the water pump, tapping it with a soft-lace hammer if necessary to break the gasket seal. Inspect the pump's impeller blades for corrosion and replace the pump if needed. To install the new water pump, clean the sealing surfaces of all gasket material on both the pump and block. Apply a thin layer of RTV sealant to both sides of the new gasket and install it on the water pump. Place the water pump in position and tighten the bolts to the specified torque. The rest of the installation procedure is the reverse of the removal. Finally, add coolant to the specified level, start the engine, and check for leaks in the water pump and hoses. Bleed the cooling system of any air.
Engine Coolant Pump Kit
89060527
Q: What are the three quick-checks to determine if the water pump is functioning properly while it is still installed on GMC Sonoma?
A: Water pump failure can cause overheating and engine damage. There are three quick-checks to determine if the water pump is functioning properly. If any of these checks indicate problems, immediate replacement is necessary. One way to check is to inspect the weep hole for coolant leakage. Another way is to listen for a high-pitched squealing sound from the water pump. Excessive bearing wear can be identified by moving the water pump pulley. It is important to note that a water pump can be faulty even without howling or leaking water. To check for this, the pump must be removed.