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Thermostat housing leaking on 2005 chrysler 300 3.5ltr

Thermostat housing leaking, where is it located? how do i get at it for repair?

Posted by Anonymous on

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Posted on Jan 02, 2017

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ZJLimited
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SOURCE: I would like to see a picture of a thermostat

Click over image for zoom...

zjlimited_1292.jpg

Fig. Air bleed valve (1) and thermostat housing (2) 2.7L-engine


Hope this helps (remember to rate and comment this free answer).

Posted on May 26, 2011

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  • 136 Answers

SOURCE: How do you replace the thermostat the correct way

The correct way to replace the thermostat would be to replace the actual part with a new one, not from a junkyard or anything and put a new gasket in with the new part.

Posted on May 01, 2009

taran_2005
  • 10515 Answers

SOURCE: 2005 Chrysler 300 thermostat location?

Hi,

In your Model :-

The automotive thermostat is a temperature controlled on and off valve. When the temperature rises to a predetermined temperature, the thermostat opens up to allow the engine coolant to flow through the cylinder block and the radiator. This flow is crucial to maintain optimum operating temperature for fuel efficiency, enhanced driveability, and engine protection. The coolant flow is reduced when the engine is cold, and the flow is increased when the engine is hot. Contrary to popular opinion, operating the vehicle without the thermostat doesn't make the engine run cooler. It will actually run hotter because there isn't a thermostat to slow the coolant flow. This means the coolant doesn't stay in the radiator long enough to dissipate its heat.

TO TEST THERMOSTAT

There are several ways to test the opening temperature of a thermostat.
One method does not require that the thermostat be removed from the engine.

  • Remove the radiator pressure cap from a cool radiator and insert a thermometer into the coolant.
  • Start the engine and let it warm up. Watch the thermometer and the surface of the coolant.
  • When the coolant begins to flow, this indicates the thermostat has started to open.
  • The reading on the thermometer indicates the opening temperature of the thermostat.
  • If the engine is cold and coolant circulates, this indicates the thermostat is stuck open and must be replaced.
The other way to test a thermostat is to remove it.
  • Suspend the thermostat completely submerged in a small container of water so it does not touch the bottom.
  • Place a thermometer in the water so it does not touch the container and only measures water temperature.
  • Heat the water.
  • When the thermostat valve barely begins to open, read the thermometer. This is the opening temperature of this particular thermostat.
  • If the valve stays open after the thermostat is removed from the water, the thermostat is defective and must be replaced.
  • Several types of commercial testers are available. When using such a tester, be sure to follow the manufacturer's instructions.
  • Markings on the thermostat normally indicate which end should face toward the radiator. Regardless of the markings, the sensored end must always be installed toward the engine.
  • When replacing the thermostat, also replace the gasket that seals the thermostat in place and is positioned between the water outlet casting and the engine block.
4fa3f4e.jpg


Positioning a thermostat into an engine.
  • Generally, these gaskets are made of a composition fiber material and are die-cut to match the thermostat opening and mounting bolt configuration of the water outlet.
  • Thermostat gaskets generally come with or without an adhesive backing. The adhesive backing of gaskets holds the thermostat securely centered in the mounting flange, leaving both hands of the technician free to align and bolt the thermostat securely in place.

TO REPLACE THERMOSTAT

CAUTION
If the radiator is filled to the top with coolant and the engine is run without the radiator cap in place, the coolant will expand and spill over as the engine warms up.
  • Drain some coolant into a clean container until the coolant level is below the thermostat housing.
  • Remove the upper radiator hose connection from the thermostat housing.
  • Loosen the housing bolts and remove the housing.
  • Remove the gasket and scrape it carefully from the surface of the housing and the mounting surface on the engine. If the gasket remains on either of the surfaces, there will probably bea coolant leak after reassembly. Some engines use a rubber O-ring to seal a thermostat housing.
  • Compare the size of the thermostat to the old one. They are of different sizes, types, and temperature ratings.
  • The temperature rating is stamped on the sensing bulb on the bottom of the thermostat. The temperature bulb faces the block.
  • When replacing a thermostat, be sure that the thermostat fits into the groove in the block or outlet housing. If the thermostat is installed upside down, the engine will overheat.
  • Install the gasket.
  • Reinstall the thermostat housing. Refill the system and run the engine or pressure test to check for leaks.
  • When the engine has reached operating temperature make sure the thermostat opens.
  • You should be able to see coolant circulating within the radiator.
  • Another way of checking thermostat operation is to feel the top of the radiator hose or use a thermometer or multimeter with a temperature probe to confirm that the coolant is warming up.
  • If the engine is overheating, but the top hose is still cool to the touch, the thermostat is stuck closed and must be replaced.
NOTE When a paper gasket is used and the recess is in the thermostat housing, it is a good practice to position the thermostat into the recess and glue the gasket to hold it in place. If it falls out of its groove during installation, the outlet housing can be cracked or a coolant leak will result. Before tightening the water outlet housing, try to rock it back and forth to be sure it is flush. Housings are often cracked during this step.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!



Posted on Oct 07, 2009

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How does the thermostat fit properly in the housing


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Pacifica, 2003-2005
Removal & Installation

Print Here is how to do it,if it does'nt fit right make sure you have the right thermostat.


3.5L Engine


CAUTION Never remove pressure cap with the system hot and under pressure because serious burns from coolant can occur.

  1. Disconnect negative cable from remote jumper terminal.
  2. Drain cooling system.
  3. Disconnect radiator upper hose from thermostat housing.
  4. Remove thermostat housing bolts.
  5. Remove housing, thermostat, and gasket.

    0996b43f80204be2.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. View of the coolant outlet connector (1) and thermostat housing (2)-3.5L engine
    View of the coolant outlet connector (1) and thermostat housing (2)-3.5L engine

  6. Clean gasket sealing surfaces.

To install:
  1. Install thermostat and gasket into thermostat housing. For ease of installation, install bolts in housing for thermostat and gasket retention.
  2. Install thermostat and housing to the intake manifold. Tighten the bolts to 105 inch lbs. (12 Nm).
  3. Connect radiator hoses and install hose clamp.
  4. Refill cooling system.
  5. Connect negative cable to remote jumper terminal

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Change thermostat on 2005 pt cruiser


    • 1 Pop the hood and locate the thermostat. It's on the passenger side of the engine and has a plug leading into it.
    • 2 Unplug the thermostat housing from the engine block using the 3/8-inch ratchet and socket set. The housing will come off in your hand and then you can pull out the old thermostat.
    • 3 Scrape off the engine block and the thermostat housing's mounting surfaces with the gasket scraper. This is to ensure the replacement gasket seals correctly.
    • 4 Place the replacement thermostat into the engine block and place the gasket over the ends of the bolts in the thermostat housing to keep them aligned.
    • 5 Bolt the thermostat housing into the engine block using the 3/8-inch ratchet and socket set.

Read more: How to Change the Thermostat on a PT Cruiser ' eHow.com http://www.ehow.com/how_5643178_change-thermostat-pt-cruiser.html#ixzz1g9B0K8Go

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I would like to see a picture of a thermostat housing LOCATION on the engine of a 2005 Chrysler Sebring 2.7L V6. I have already replaced the upper water outlet housing, and was told it is not where the...


Click over image for zoom...

zjlimited_1292.jpg

Fig. Air bleed valve (1) and thermostat housing (2) 2.7L-engine


Hope this helps (remember to rate and comment this free answer).

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I need to know where the location of the thermostat is on a 1999 chrysler 300m so i can replace


The 2.7L engine lower radiator hose, connects to the thermostat housing.

To Remove:
1.Disconnect the Negative battery cable.
(Engine COLD!)
  1. Drain cooling system.
  2. Remove radiator lower hose from thermostat housing.
  3. Remove nuts from heater tube flange studs.
  4. Loosen starter bolt at heater tube bracket.
  5. Pull heater tube out of thermostat housing and position out of the way.
  6. Remove bolt and two studs.
  7. Remove thermostat housing, O-ring and thermostat.
  8. Remove thermostat housing bolts.
To install:
A.Clean gasket sealing surfaces.
B.Install thermostat with the bleed valve located at the 12 o'clock position, between tabs on seal.
  1. Install thermostat and seal into thermostat housing .
  2. If removed, install two studs.
  3. Install thermostat, thermostat housing and O-ring and bolt. Tighten attaching bolts to 105 inch lbs.(12 Nm).
  4. Lubricate new heater return tube O-ring with coolant.
  5. Position heater return tube flange over two studs. Install nuts.
  6. Tighten retaining nuts to 53 inch lbs.(6 Nm).
  7. Tighten starter bolt to 40 ft. lbs. (54.3 Nm).
  8. Connect the lower radiator hose to the thermostat housing. Install hose clamps.
  9. Refill cooling system.
  10. Inspect for leaks.
  11. Connect negative cable.
3.2 and 3.5L engines:
Disconnect the battery cable. (Again engine COLD)
  1. Drain cooling system.
  2. Raise vehicle on hoist.
  3. Disconnect electrical connectors from engine oil and power steering pressure switches.
  4. Disconnect radiator and heater hoses from thermostat housing.
  5. Remove thermostat housing bolts.
  6. Remove housing, thermostat, and gasket.
The OEM thermostat is staked in place at the factory. To ensure proper seating of replacement thermostat, carefully remove the bulged metal from the thermostat housing, using a suitable hand held grinder. It is not necessary to restake the replacement thermostat, into the thermostat housing.

To Install:
  1. Position gasket on thermostat and housing.
  2. Install thermostat housing, gasket and mounting bolts onto block. Tighten attaching bolts to 105 inch lbs. (12 Nm).
  3. Install radiator hose.
  4. Install bypass hose.
  5. Connect electrical connectors from engine oil and power steering pressure switches.
  6. Connect negative cable.
  7. Fill cooling system.
  8. Inspect for leaks.
  9. Lower vehicle on hoist.
From AutoZone Repair Guides

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