Why is my 2005 Chrysler 300 still over heating after replacing thermostat, water pump, Radiator, and by passing the heater core?

80

Asked by Feb 07, 2014 at 05:00 AM about the 2005 Chrysler 300

Question type: Maintenance & Repair

25 Answers

1,260

what engine do you have, if you have a/c turn it on, the radiator fans should come on, it is common for the motors to quit and the fan blades to break,

2 out of 2 people think this is helpful.
80

3.5 we do have a/c and I've run it before when it starts over heating just to see if it would do anything and it didn't cool it down....we are losing water some where but can't find the leak...someone said that the (don't quote me IM a girl) gaskets in the intake manifold (?) Might be bad and we could be loosing water in there....does that make sense?

2 out of 2 people think this is helpful.
1,260

yes it could be the intake gaskets, also the water pump is driven by the timing belt, also the right timing that the water pump bolts to can also leak coolant.

1,260

you still didn't answer my question, doo the cooling fans work ( the radiator fans )

1 out of 1 people think this is helpful.
80

Some times I can definitely hear them click on , other times I have noticed I don't hear them, but I didn't get a chance to look at the car today due to work but I ran the a/c at all times driving to and from work and noticed the gauge would start rising then drop suddenly to half way then after a minute start rising again

2 out of 2 people think this is helpful.
1,260

take it to a shop and have a block check done to see if exhaust gases are getting into the cooling system.

1 out of 1 people think this is helpful.
80

Awesome thank you, have a diagnostic scheduled for Friday....is that an expensive fix?

3 out of 3 people think this is helpful.
80

Just was told my "impeller on water pump" could be broken....know anything about this and would it cause leaking? We know there is a leak some place but just cannot find it

1,260

the water pump is driven by the timing belt, remove the upper timing cover and look inside, if you see a lot of pink crust type stuff then yes water pump is leaking, if you have more than 100k miles the inner timing cover may also be leaking

1,260

yes it can be costly

1,260

diagnostic should be about 1 hour for diag only.

80

Thanks

1 out of 1 people think this is helpful.

Let us know what your final diagnosis was and how did you get it repaired? I'm having the exact same problem for the exact same car.

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same problem 2006 chrysler 300 5.7

2 out of 2 people think this is helpful.
40

All my parts are bought from Chrysler just to make sure they are right. Allready replaced coolant temp. sensor, thermostat, new radiator cap, new fans. problem still happening. At idle temp stays around half way but when driving it overheats quickly. Allready done the 9v battery check on all coolant relays, which checked out fine. Went ahead and replaced all fuses (19,and 22) that are connected w the coolant system just to make sure. Hoping the other two components arent the problem but from the way it looks, it is. Any comments would be helpful.

2 out of 2 people think this is helpful.
20

Did anyone find the solutions to the over heating problem

2 out of 2 people think this is helpful.
20

I have the same problem what was the solutions was it ever fixed.

2 out of 2 people think this is helpful.

I have the exact same problem on my Chrysler

10

Hello I have 5.7 hemi I just change the fans water pump the radiator and thermostat is still want to over heat what could be my problem I did a flash coolant and when I put new go5 fill up fast could it mean that clagg some where by the morning be almost gonna be of I did a flash it should take close to two gallons but doesn't even take one

1 out of 1 people think this is helpful.
10

Try your cooling temperature sensor that work for me and it's only 15 bucks

1 out of 1 people think this is helpful.
10

07 300 3.5 over heats already checked all fuses relays new thermostat coolant radiator cap and still over heats top hose gets really hot

1 out of 1 people think this is helpful.
20

I have over heating problem too. I changed thermostat, coolant sensor, fan relay switch and water pump. My car is still over heating. Anyone know what else it colud be?

2 out of 2 people think this is helpful.
10

I'm having same problem with my 2005 Chrysler 300C hemi changed temp sensor thermostat relays belt my fans are kicking on can't c no leaks any where but every time I turn car off after a minute water starts bubbling in water jug then starts coming out need help anyone

1 out of 1 people think this is helpful.
10

Dose anybody what that means hemi motor 5.7 2005 Chrysler 300C

Im hvaing a problem with my Chrylser 300 2006 3.5 , its leaking from the front passenger side. Depending what i put in the disposible (water or antifreeze) it leaks it slowly . Then overheats (thats letting me know , it leaked the whole thing) . I really dont know fior sure if its the radiator , could someone help ?

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