Question about 1998 Dodge Caravan

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Location of thermostat 3.3 engine, i bought one to winterize and flush coolant system and clerk told me i did not need a gasket? Is it in upper radiator hose housing like most engines?

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Absolutely and get the gasket the clerk hasn't a clue if he told you that

Posted on Oct 03, 2009

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2 Answers

How to fix thermostat


That looks a bit like a fridge rather than the category 'Cars and Trucks'?

Google
make model replacement thermostat

you will end up on a site like this

http://www.partselect.ca/Refrigerator+Repair+repair.htm
Refrigerator Repair Guide

Mar 28, 2016 | Cars & Trucks

Tip

Cooling system maintainence


Now that the winter season is on us you should have had your cooling system tested and replaced if necessary.
Your engines coolant never looses if effectiveness for keeping the system from freezing but it does loose its ability to neutralize the acids that are created from every day operation.
These acids if left unchecked with old worn out antifreeze will begin to corrode radiators, heater core, hoses and engine component such as freeze plugs, head gaskets, intakes gaskets and water pumps. None of these effects will be notice immediately, but over time you will begin to develop leaks and other cooling system component failures.
With the addition of the "new" extended life coolants, automotive manufacturers had realized they would not be able to offer extended warranties of 50k to 100K without this new coolant, therefore it was necessary to develop these high performance coolants.
As a rule of "thumb" if you have an older vehicle with green coolant, the cooling system should be flushed and replaced every 2 years.
If you have a newer vehicle with the extended life coolant, I would recommend a system flush and replacement every 5 years.
If you follow these guide lines you will be able to enjoy a trouble free winter season with no unnecessary cooling system failures.
As a side note, don't neglect and forget to change the thermostat with every flush and fill.
Good luck and happy motoring.........

on Dec 08, 2009 | Acura Integra Cars & Trucks

Tip

Engine coolant replacement


Now that the winter season is on us you should have had your cooling system tested and replaced if necessary.
Your engines coolant never looses if effectiveness for keeping the system from freezing but it does loose its ability to neutralize the acids that are created from every day operation.
These acids if left unchecked with old worn out antifreeze will begin to corrode radiators, heater core, hoses and engine component such as freeze plugs, head gaskets, intakes gaskets and water pumps. None of these effects will be notice immediately, but over time you will begin to develop leaks and other cooling system component failures.
With the addition of the "new" extended life coolants, automotive manufacturers had realized they would not be able to offer extended warranties of 50k to 100K without this new coolant, therefore it was necessary to develop these high performance coolants.
As a rule of "thumb" if you have an older vehicle with green coolant, the cooling system should be flushed and replaced every 2 years.
If you have a newer vehicle with the extended life coolant, I would recommend a system flush and replacement every 5 years.
If you follow these guide lines you will be able to enjoy a trouble free winter season with no unnecessary cooling system failures.
As a side note, don't neglect and forget to change the thermostat with every flush and fill.
Good luck and happy motoring.........

on Dec 08, 2009 | Chevrolet 1500 Cars & Trucks

2 Answers

Where is thermstat


Assume you are asking about the thermostat. You can find it by tracing the radiator hose to where it connects on the intake manifold. The piece it connects to is the thermostat housing. The thermostat lives inside that housing.

Jul 17, 2014 | 1998 Ford Escort

1 Answer

How to replace Thermostat on 2006 Town & Country Van ?


drain coolant system half way until coolant below thermostat.to locate thermostat follow upper radiator hose to engine.just remove both thermostat housing two bolts then clean all traces of old gasket material. be sure to have new thermostat gasket and gasket sealer on hand.make sure both thermostat housing and engine block clean dont have any traces of old gasket material if so you will have coolant leak.but besure to put gasket sealer both sides thermostat gasket just need thin layer RTV silicone.you can buy can of gasket remove to help remove old gasket material. try not to damage thermostat housing surface or engine surface with scraper deep scratches cuts in either surfaces will cause coolant leak be careful.

Dec 28, 2012 | Chrysler Cars & Trucks

1 Answer

Is my dodge ram van 2500 overheating either because of heater core, head gasket or just the thermostat


Hello! Can not tell from the question if your loosing coolant...But it sounds like an air bubble behind the thermostat is blocking the flow...Remove the thermostat...Replace housing...Buy a back flushing kit from an auto parts store...Back flush the cooling system...Make sure heat is on high...Replace thermostat and refill with 50/50...start the engine with radiator cap off...Let all the air bubble out, even after thermostat opens...Wait until upper hose gets hot then replace the cap...Top off in the recovery tank...Now, monitor temperature...If all is well back flushing and air bleeding cleared the fault...If engine overheats due to loss of coolant I'll address that next...If coolant is not being lost does the engine actually overheat? ie..bubbling into recovery tank...If not the temperature sending unit is defective...send a comment...Guru...saailer

May 04, 2012 | Cars & Trucks

2 Answers

Where is the thermostate located on my 2005 jeep liberty


Thermostats almost always reside in a housing at the engine side end of the upper radiator hose. Drain coolant first, then loosen radiator hose to access thermostat housing. If you can't find the housing, consult your vehicle service manual for location.

Loosen the bolts that hold down the thermostat housing. Remove the housing to reveal the thermostat.

Note the location and orientation of thermostat relative to the engine. Remove thermostat.

Use a scraper to remove old gasket material from all mounting surfaces.

Place new gasket on housing. Use a small amount of grease or adhesive to hold it in place during reassembly.

Make sure new thermostat is oriented properly and reinstall the housing.

Reconnect all hoses. Close radiator petcock. Refill cooling system with recommended 50/50 blend of water and coolant. Run engine and heater to purge air from cooling system. Recheck the coolant level once engine is cool.
found info on web site listed
Good luck

Dec 17, 2010 | 2005 Jeep Liberty

3 Answers

Luke warm heat in a 2002 expediton


Start with Flushing out your cooling system. Flush it out with Preston Radiator flush, you have your preference of ether the super flush which takes 3-6 hours or the 10 min flush which is good if you don't have the time to flush out your cooling system.

After you have flushed out your cooling system, replace your thermostat and you should be good for another cold winter driving. What happens is that after a few years of the coolant not being serviced, the coolant crystallizes and clogs up the heater core and radiator causing poor circulation. Poor circulation will cause poor heat and or overheating issues to the engine.

Before you go through all that inspect to make sure you have the right amount of coolant in your cooling system.

Good luck and thank you for using fixya

Nov 04, 2010 | 2000 Ford Expedition

1 Answer

The ac only stays cold for a little while,


compressor clutch could be slipping caused by improper air gap adjustment between plate and hub at high ambient temps ford recommends a spacer kit

Or maybe an undercharge situation.

What really helped my car that you could do on your own and probably needs it would be to flush out the heater core in both directions. Buy a plastic heater core flush valve at kmart or somewhere and just cut the line and hook it up also has a bleeder on them that will allow you to get all the air out. I've never bought one but seen one at kmart and would have bought if done over again. Go ahead and also do a coolant flush. Most shops don't do heater core flushes. I didn't run a flusher chemical in my radiator but that may not be a bad idea to run in your car for a while before you flush out your system. Couldn't hurt. Recommending flushing in both directions inlet and outlet of your heater core hoses located middle of firewall back of engine passenger side until water runs clear. Have your car running with heat on high as the garden hose water is flowing through and lower radiator hose is disconnected. Tip: Qty for coolant in your car is appx 14 quarts. So add 100% concentrate after your done flushing w/ garden hose and everything is drained as best as can be. Your engine will still have 100% water in there as all the engine passages and tunnels are unable to drain unless maybe you put some air pressure to it. So add 1 1/2 gallons (6qts) of 100% coolant or two gallons if its really cold. Yeah two gallons 8qts max. I doubt that you will even be able to put that much in before it over flows. So that way you know your capacity and you know whats in there is water and what your adding is mixing it 50/50 So after you put your 6-8 quarts of straight 100% yellow or green coolant in fill the remaining up with water. Could blow out all water with air pressure and mix with distilled or whatever (metal free) water if your real picky or have irony well water. Also recommended fill-up after your done connecting all your hoses is the upper radiator hose thermostat housing located top left (driver side) of radiator on the engine side of the hose. I would remove the thermostat housing on engine side upper radiator hose and replace thermostat and not buy the gasket unless really really bad. Rubber is forgiving. And costs almost as much as the thermostat. Anyways you must fill from that location by removing thermostat and pouring coolant there until full. I remember removing something to have better access to one bolt on thermostat housing just to make hob a bit easier. My rule of thumb is if you have to work just as long taking a hard to get bolt off as removing something in the way, just remove it. Usually saves time in the long run. Finish by replacing thermostat or not and use same gasket and button up. Fill reservoir, check for leaks, start car, check for leaks, drive a bit and fill reservoir afterward and check for leaks. Hose clamps should only be tightened till they are just below level of the rubber. Until it seems the rubber is just skimming over slightly. Over tighten and you will greatly reduce the life of your hoses and probably cause the leak yourself. Hope this helps Thanks

Aug 31, 2010 | 1993 Lincoln Town Car

2 Answers

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.

Jun 08, 2009 | 1997 Nissan Pickup

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