Question about 1994 Oldsmobile 88

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Where is the dang thermostat? I have followed the upper radiator hose up to the water pump and can't find the thermostat housing. I have removed the alternator...not under there. I give up, where did they hide it??

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  • djjg007 Jan 03, 2011

    what motor is in it?

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  • Master
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Its at the opposite end of the engine. Drivers side. Doesnt the upper radiator hose go to the drivers side?

Posted on Jan 03, 2011

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Posted on Jan 02, 2017

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Waterpump 2002 ford turaus 3.0 durtec


3.0L Engine

VIN S Engine
  1. Before servicing the vehicle, refer to the precautions section.
  2. Drain the cooling system.
  3. Remove or disconnect the following:
  • Splash shield
  • Lower heater hose
  • Radiator lower tube bolt
  • Radiator upper front tube bolt
  • Air cleaner assembly
  • Battery and tray
  • Water pump belt
  • Upper radiator hose
  • Engine vent hose
  • Transaxle 10 pin connector
  • Radiator bypass hose assembly
  • Thermostat housing
  • A/C compressor brace, if equipped
  • Water pump mounting nuts
  • Connector hose
  • Water pump




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To install:
  1. Install or connect the following:
  • Water pump
  • Connector hose
  • Water pump mounting nuts and tighten them to 15-22 ft. lbs. (20-30 Nm)
  • A/C compressor brace, if equipped, and tighten the nuts to 15-22 ft. lbs. (20-30 Nm)
  • Thermostat housing
  • Radiator bypass hose assembly
  • Transaxle 10 pin connector
  • Engine vent hose
  • Upper radiator hose
  • Water pump belt
  • Battery and tray
  • Air cleaner assembly
  • Radiator upper front tube bolt
  • Radiator lower tube bolt
  • Lower heater hose
  • Splash shield
2. Fill the cooling system.
3. Start the engine and check for leaks.

Dec 06, 2015 | 2002 Ford Taurus

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

Oct 21, 2013 | Cars & Trucks

1 Answer

How to replace thermostat on ford f350 turbo diesel


The F-350 designation refers to a 1-ton Ford F-Series pickup truck. The thermostat in your diesel-powered Ford closes off the flow of coolant when the engine is cold, forcing the engine to heat up faster. When the coolant has reached a certain temperature, the thermostat opens up and the coolant flows as normal. A malfunctioning thermostat in your diesel may cause your engine to overheat if the thermostat gets stuck in the closed position. Installation of a new thermostat will cure the problem and get you back on the road

  • Open the hood. Allow the motor to cool off so that you will not be scalded by hot coolant. Locate the thermostat housing by tracing the upper radiator hose from the driver's side of the radiator to its termination at the thermostat housing.
  • 2 Remove the cap from the white plastic coolant bottle at the front of the engine bay. Place a drain pan under the radiator drain petcock on the lower side of the radiator on the driver's side of the truck. Remove the petcock by rotating it counterclockwise with a 19mm wrench. Replace the petcock and tighten it in a clockwise direction once the coolant has fully drained.
  • 3 Remove the clamps from both ends of the upper radiator hose with a pair of pliers. Pull the hose from the radiator and from the thermostat housing, using a twisting motion. Set the hose and clamps aside.
  • 4 Spray penetrating fluid on the three mounting bolts on the thermostat housing and let it soak in for a few minutes. Remove the three bolts with an 8mm wrench turned counterclockwise. Remove the thermostat housing from the water pump and set it and the bolts aside.
  • 5 Remove the thermostat housing from the water pump to reveal the thermostat. Carefully pry the thermostat up with a flat-blade



  • screwdriver if necessary. Clean the mating surfaces on the thermostat housing and at the water pump with a rag.
  • 6 Place a new thermostat into the water pump with the pointed end facing upward. Install a new O-ring gasket into the groove on the thermostat housing mating surface of the water pump. Position the thermostat housing back onto the water pump and tighten the three bolts with a torque wrench to 15 foot-lbs.
  • 7 Push the upper radiator hose back onto the radiator inlet and the thermostat housing until it is fully seated at both ends. Replace the hose clamps in their original position with a pair of pliers. Refill the coolant that you drained from the radiator back into the white plastic coolant tank and replace the cap. Start the engine and let it warm up. Check for leaks and retighten your connections if necessary



  • Dec 08, 2010 | 2004 Ford F350

    1 Answer

    The engine got hot could it be the thermostat and where is it located also the water pump


    Could be thermostat, follow the upper radiator hose from radiator to engine, where it hooks up at engine end, is where thermostat is at, remove small bolts at housing where hose clamps to, under that housing is where thermostat is at.Water pump, follow lower radiator hose from radiator to engine, where it hook up to, is where water pump is at.

    Aug 11, 2010 | 1987 Oldsmobile Delta 88

    2 Answers

    I can't seem to find the thermostat in my 2000 Chrysler LHS 3.5 L Is it in the manifold at the end of the upper radiator hose or elsewhere? I've seen so many answers and haven't yet found a solution. A...


    If you were to take the upper radiator hose off the engine, and look into the resultant hole, you would see the thermostat.

    The thermostat on all cars blocks water leaving the engine and going to the radiator, until the thermostat warms up enough to open.

    While the thermostat is closed, water circulates through the heater hose, straight back to the inlet of the water pump. This circulation prevents hot spots, distributing the heat evenly to warm the engine up, and also brings that warmed water to the thermostat.

    When the t-stat gets hot enough to open, water leaves the engine instead of circulating through it, and that allows cool(ed) water to flow from the radiator through the bottom hose to replace the water that left through the upper hose and t-stat.

    The stub that the upper hose attaches to on the engine should be part of a small housing that is bolted to the engine. Removing that housing is how you remove the t-stat.

    Aug 05, 2010 | 2000 Chrysler LHS

    1 Answer

    Want to know how to change a thermostat on my 2004


    It Depends on which engine you have, this is how it goes for both. I use a little RTV with a new ring as well.

    THERMOSTAT REPLACEMENT (4.2L ENGINE)
    Removal Procedure
    1. Remove the necessary coolant from the radiator.
    2. Remove the generator.
    3. Loosen the outlet hose clamp at the thermostat housing. Remove the outlet hose from the thermostat housing.
    4. Remove the thermostat housing bolts.
    5. Remove the thermostat housing from the engine block.
    6. Clean all of the surfaces of the thermostat housing.
    7. Clean the sealing surface of the engine block.
    Installation Procedure
    1. Install the thermostat housing to the engine block.
    2. Install the thermostat housing bolts.
    Tighten: Tighten the bolts to 10 N.m (89 lb in).
    3. Lubricate the inner diameter of the radiator hose with engine coolant.
    4. Install the outlet hose to the thermostat housing. Secure the hose with the clamp.
    5. Install the generator.
    6. Fill the cooling system with specified coolant and concentration. Follow the correct cooling systen bleed procedure for your engine.
    7. Inspect all sealing surfaces for leaks after starting the engine.
    THERMOSTAT REPLACEMENT (5.3L ENGINE)
    1. Drain Radiator and remove the radiator outlet hose.
    2. Remove the water pump inlet bolts.
    3. Remove the water pump inlet and thermostat from the water pump.
    Installation Procedure
    IMPORTANT: The thermostat is not serviceable separately. The water pump inlet and thermostat must be replaced as an assembly.
    1. Install the thermostat and thermostat housing to the water pump.
    2. Install the thermostat housing bolts.15 N.m
    3. Install the radiator outlet hose.
    4. Fill the cooling system with specified coolant and concentration. Follow the correct cooling systen bleed procedure for your engine.
    5. Inspect all sealing surfaces for leaks after starting the engine.

    Mar 17, 2010 | 2004 GMC Envoy

    3 Answers

    Please discribe where is the thermostat in a 95 cutlass ciera?


    follow upper radiator to center of engine between heads at center of transmission, thermostat inside the housing that upper radiator hose connected to, its between motor and exhaust pipe crossover

    Feb 09, 2010 | 1995 Oldsmobile Cutlass Ciera

    1 Answer

    How to change out thermostat on 2002 jeep liberty? Do I have to remove the water pump?


    Hi:
    You don't need to remove the water pump. The thermostat is located under a housing, at the engine end of the upper radiator hose.

    All you need to do is drain your radiator, remove the upper radiator hose, and remove the thermostat housing. Clean it up well, and replace all gaskets before reinstalling!

    Nov 30, 2009 | 2002 Jeep Liberty

    3 Answers

    Can't find the thermostat .car running hot.water pump working find,i think its the thermostat


    Follow the upper radiator hose to where it hooks on the engine. The thermostat is located inside the housing that the hose hooks onto. Hope this helped and best wishes.

    Aug 11, 2009 | 1992 Geo Prizm

    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

    Aug 07, 2009 | 2000 Mercury Mountaineer

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