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

90

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

Question type: Maintenance & Repair

36 Answers

1,710

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,

3 of 3 people found this helpful.
90

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?

3 of 3 people found this helpful.
1,710

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 of 1 people found this helpful.
1,710

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

1 of 1 people found this helpful.
90

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 of 2 people found this helpful.
1,710

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

1 of 1 people found this helpful.
90

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

3 of 3 people found this helpful.
90

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

1,710

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

1,710

yes it can be costly

1,710

diagnostic should be about 1 hour for diag only.

90

Thanks

1 of 1 people found this helpful.
10

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.

1 of 1 people found this helpful.
60

same problem 2006 chrysler 300 5.7

3 of 3 people found this helpful.
60

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.

3 of 3 people found this helpful.
20

Did anyone find the solutions to the over heating problem

2 of 2 people found this helpful.
20

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

2 of 2 people found this helpful.

I have the exact same problem on my Chrysler

20

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

2 of 2 people found this helpful.
20

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

2 of 2 people found this helpful.
40

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

4 of 4 people found this helpful.
30

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?

3 of 3 people found this 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 of 1 people found this helpful.
10

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

20

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 ?

2 of 2 people found this helpful.
10

Y my 2005 Chrysler hemi keep over heating

1 of 1 people found this helpful.
10

Did that problem ever get fixed???

I have a 2005 chrysler 300 that over heats while idling. Runs cold while driving. Also there is no heat blowing just cold air.

45

Hello all. I have an 06' Chrysler 300 2.7 L that has been giving me error code 2181 for a good while. I moved my car from Florida to Colorado, so I think there may have been an adjustment with the cooling system. Recently I had a coolant leak from the passenger side near the radiator, I thought it was the upper hose so I replaced it but the leak continued. I am about to start the change of the radiator and expect that it should not leak further. I will update. Thankfully I have not overheated. @Listo7171 -- I had the bubbling problem some time ago, replacing the reservoir cap fixed my issue -- after I flushed the coolant and burped the system, give that a shot (you don't have to flush it, just try the a new reservoir cap and let the car idle for 15- 20 minutes with the reservoir cap off to let any air out).

I have a 2008 chrysler 300c RWD 5.7 HEMI mine has 102,000 miles . mine was boiling over it seemed an the Reservoir temperature gauge showed no signs of overheating nor the motor just the Overflow would pour antifreeze after cutting the engine off and not every time I replaced the coolant reservoir cap as sunset in earlier posts been driving it for 3 months now and have not had any problems I did check compression test just to make sure everything is fine now hope others is as simple as mine was hope this post helps.

If compression is good, I would say a small amount of air is getting into the system. These cars are notorious for overheating if there is a small breach in the cooling system. I purchased one from a guy for a very cheep price because he thought it had a blown head due to the ovsrheating. Turned out to be the gasket to the thermostat housing. A small amount of air had been getting into the area. Cost $5 to fix.

My 2005 Chrysler 300C Hemi a code came up p2181 and then running hot and then I flushed it and put a thermostat on it and then it ran hot again leaking antifreeze thought it was leaking from the bottom of the water pump so the next day I replace the water pump and then a couple hours later start making noise from the water pump timing belt pulley and running hot again and leaking antifreeze from the passenger side of the radiator and by the way it ain't no code on the dashboard no more can somebody help me with this please before I waste any more money on the wrong part

45

Have you noticed if the coolant is bubbling at all? I had the same code, I replaced the cap on the coolant reservoir and it stopped. Later, I had to replace a hose, and after that I found that my radiator had cracked, so I replaced that, too. I don't think P2181 has anything to do with the water pump. Good luck.

1 of 1 people found this helpful.

Coolant is bubbling NOW

(Sergio) Coolant is bubbling NOW I bought a brand new Reservoir cap still running hot

45

Yo T, did you 'burp the system'? This means, let the car run in park for some time, with the coolant reservoir cap off. This will let any air in the system out and should stop the bubbling in the coolant. While it's running with the top off, it will overflow some, this is fine, just make sure that you have enough paper towel to clean it up so it don't go down any other parts. Other than that, make sure all of your hoses are good, not brittle, if there's a leak from something or another part allowing air IN, you can usually hear it. Is your check engine light on? You saidd the codes went away? Watch this and see if you can pull anything. https://www.youtube.com/watch?v=BIPBDgraN1E

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