Question about 1999 Pontiac Montana

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2000 Pontiac Water Pump Location

I am just wanting to see if the location of the water pump is where the upper radiatior hose goes into the housing. There is a bleeder valve there as well. I am replacing this due to losing coolant and it is showing up on the belt. I also want to flush the radiator and put the newer green colored coolant in the car. And get rid of the orange DexCool.

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  • Mary Armstrong Nov 07, 2011

    where is the water pump located

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Dont get rid of the dex cool. there made just for gm's and is better than the green. and the water pump should be on the back side of the motor half way down

Posted on Sep 29, 2008

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Posted on Jan 02, 2017

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2 Answers

Engine Diagrams


Hello. Here a non-photo diagram. Hope this helps!!!

The thermostat is located on the side of the water pump, the water pump is located just above the a/c compressor, the thermostat is fed coolant from the radiators lower radiator hose.
Thermostat :
1. drain coolant and tighten drain plug ( easier method : remove radiator cap, get big drain pan, place drain pan under lower radiator hose to radiator connection, remove clamp, slowly remove hose, allow coolant to drain into pan, now is a good time to remove radiator hose and clamp from thermostat housing )
2. remove thermostat cover / cap ( easiest to get at this when front of car is supported by jack stands and right hand side lower cover is removed ).
3. thermostat cap is held on by 3 bolts / remove thermostat.

You will notice that the thermostat's air bleed hole is pointing up and lines up with notch in water pump housing,,

ATTENTION :failure to install new thermostat in the correct location will cause engine to overheat.

1. install new thermostat to water pump, make sure air bleed hole lines up with notch, install and tighten bolts, install a new lower radiator hose, fill cooling system.

thermostat # 17670-77E00
lower radiator hose #17854-65G20
hose clamp #09401-36403
upper radiator hose # 17852-65G20

Suzuki factory manual

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1 Answer

Where is the bypass hose for the water pump located on a 2005 chevy equinox?


open hood and while looking at engine on the left side follow the lower radiator hose up to the water pump right above where the hose connects are the two hoses top goes to heater core for inside cabin the other goes to heater rail on engine their is no [bypass hose ] for water pump -on the right side of engine is the thermostat -stat outlet housing and upper hose

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1 Answer

Waterpump leak


Hello bladresha: My name is Roger and I will help you. The water pump on the 4.0 engine is located at the rear of the motor inside of the water cross over tube. It does require special tools in order to remove and install. This pump does not bolt in or on to the motor. This is a twist and lock in pump. Just like the Cadillac Northstar motor. You will need to remove the upper hose housing from the crossover tube. Look inside of the housing and you will see the water pump. You will need to use the special tool in order to unlock the water pump. Pay close attention to the water pump when removed. There will be a notch in one of the ears. This is a location notch. The new pump must go in the same notch. I have attached a picture that shows the water pump location. Should you need further help please just ask. Please rate the answer. Thank You for using Fix Ya. Rogerrogerf1_27.jpgrogerf1_28.jpg

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1 Answer

Water pump location


2.2 liter the water pump is driven by the timing chain. You will need a special tool to lock/hold the the water pump sprocket in place while the pump is being replaced. If you don't have the tool than do not try to replace the pump on this engine.

3.4 liter the water pump is located on the upper right of the engine as you are looking at it standing on the passenger side of the car. the lower hose goes into the backside of it.

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2 Answers

Thermostat location


The thermostat should either be at the water pump or at the housing at the engine end of the upper radiator hose.

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1 Answer

Is it necessary to remove the thermostat housing in order to replace a water pump bypass hose? Mechanic advises that my 2000 Mountaineer's small by-pass hose is leaking. In order to replace it, either the...


in the upper radiator hose to the engine side of an elbow with 2 screws in there is the thermostat and water pump need to remove the fan belt clucht with the fan off the bottom hose that goes from the radiator to the pump to remove the screws remove the pump the pump clean the surface and install the new pump

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2 Answers

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Follow the top rad hose to the engine, where it connects that's the thermostat housing.

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1 Answer

Thermostate location


on the drivers side of engine below the water pump drive belt the upper rad hose is attached to the housing that it is in

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Radiator


the upper rad hose goes from the rad to the thermostate housing. this hose is @2-21/2" the lower hose same size goes from lower rad to water pump. There is a 5/8 hose from water pump to thermostate housing called bypass hose. and you have two hoses from water pump and intake to the heater core. hope this helps if not let me know thanks

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