thermostat problems 2001 jeep grand cherokee?

Question

So I changed my thermostat and gasket because my car kept overheating. that problem is solved however, now i have two new problems...1 there doesnt seem to be a tight enough seal around the thermostat housing and when the car warms up it starts leaking, i know its on super tight.... and the killer, now i dont have heat i read somewhere that there is air in the heater core and i need to bleed the radiator after the car warms up....well i headed the warning and still burned the shizzle out of my hand...and still no heat...any suggestions

Answer 1

First things first, you need to take the thermostat housing back off and clean all of the old gasket material off the surfaces, then install a new gasket and tighten the bolts down evenly then once they're tight make sure you torque them down evenly also if you don't you'll warp the pieces and cause another leak.



Second, your heater isn't working because there's air in the heater core or in one of the heater hoses. So take one of your heater hoses lose, preferably the top one its easier to get to. Start the jeep and let it warm up completely so that the coolant starts to flow through the engine, once this happens coolant will also start flowing through your heater hose let it run for a couple seconds then reconnect it to your heater core. Once you reconnect the hose and tighten everything down you should get heat. If not, take the lower hose off and do the same thing let the coolant flowing work the air bubbles out of the heater core then put the hose back on.



Once you get all of that completed make sure you top off your radiator and your coolant overflow bottle with a 50/50 mix of coolant and water.

Answer 2

2001 Jeep Grand Cherokee Thermostat

Answer 3

What you need to do is take the thermostat back out, stick a dry clean cloth where the thermostat sits inside the engine, then clean both surfaces of the thermostat housing well , then dry them.use some gasket maker there is two types of silicone gasket maker that you can use the red or orange will work , the red is usually used on the high temperature parts such as exhaust manifolds etc.Read the directions carefully and apply a bead of it to the engine thermostat housing, then remove the cloth and place the other half of the housing together and hand tighten the bolts equally as you hold the housing down in place.Once you start to see the silicone show up along the edges you know the bolts must be tight enough.



Next you should top off the coolant and test it's quality and mixture, then with either the reservoir or rad cap off start up the engine, have something to absorb any coolant that will over flow.Normally once the engine warms up it will force the coolant to over flow , you will see bubbles etc that is air in the system being forced out.Once the coolant over flows forcing air out shut off the engine, then wait till the engine cools down to top off the coolant with factory recommended coolant. Then put the cap back on and start up the engine, once the temperature gauge gets to just before the half way mark you should hear the fan engage, then try the heat.





Hope that helps and best of luck.By the way it may help to purchase a service manual from a parts store etc and what I recommend if the thermostat housing has a hose connected up to it , disconnect the hose first, later sand and clean the part of the housing that the hose sits on and use a new hose clamp.

Answer 4

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RE:

thermostat problems 2001 jeep grand cherokee?

So I changed my thermostat and gasket because my car kept overheating. that problem is solved however, now i have two new problems...1 there doesnt seem to be a tight enough seal around the thermostat housing and when the car warms up it starts leaking, i know its on super tight.... and the killer,...