Question about 2003 Chrysler 300M

1 Answer

2003 Chrysler 300m overheating

My chrysler is overheating... There is no fluid leak.. Fans are working and there is no other fluids mixed in my oil. It will go down if you put the heater on full blast. On idle it is not overheating

Posted by on

  • exsmail Feb 13, 2009

    I have the same problem. The car only has 37,000 miles on it. There is really no reason for a headgasket to be cracked. The check engine light came on. I get a Thermostat Rationality code on my Scan Guage. The loop shows as closed, even as the temperature rises. I had the radiator cap replaced (one clever mechanics cure all for everything) and the thermostat replaced. It's still doing the same thing. I'm really curious because the problem started a year ago, then seemed to go away for a while. Now it's back. Any help appreciated in advance.



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 260 Answers

Would recommend replacing thermostat first. could be sticking

Posted on Nov 16, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

3.5, 04 chrysler hydrolic valve lash failer

Was the oil you drained very thick? If so this means someone had knew the big end or small end inside the engine was about worn out (very big job) Hopefully you changed the oil filter for a new one, Check your hydraulic fluid is okay worth draining & new fluid replaced look for Fluid leaking this may be the problem. If this dont work I suggest you ask a good Mechanic to listen & I expect the first problem IE: Big end, or small ends gone the engine needs large repair or look for another engine around scrap yards, sorry for bad news. Best Wishes, Malcolm Campbell.

Jul 03, 2017 | Chrysler 300M Cars & Trucks

1 Answer

I have a 2003 Chrysler 300M that has started having vibration and a bubbling sound coming from under the hood.

your car is overheating-may be a number of things-blown head gasket would cause bad running and bubbling sounds-have you noticed antifreeze leak out-have you noticed a sweet smell,hot antifreeze-cheers Denny

Nov 01, 2013 | 2003 Chrysler 300M

2 Answers

Can transmition fluid get mixed with antifreeze on chrysler pacifica 2005

No, Your radiator has many small ports which when antifreeze is mixed with oil or transmission fluid creates a chocolate milk looking mixture. This will not cool your engine as it needs resulting in overheating, and or blowing of your head gasket

Apr 01, 2012 | 2004 Chrysler Pacifica

1 Answer

Fluids leaking but not losing any?????????????

ist problly leaking very little then but i would go get that fixed un less your checkers arent in all the way and the read the same evertime you check it

Feb 26, 2012 | 2001 Chrysler 300M

1 Answer

The thermostat don't work where is it located at to put it on the 99 chrysler 300m

Jacquelin! The thermostat n a 3.5 Chrysler 300M is on the block right next to, and toward the front of the engine by the oil filter. Yes, that sems a bit strange, but then I'm not a bit surprised about this engine any more. As the big radiator hose leaves the radiator finding its' way toward the block, it terminates at a traditional "goose neck" at the block behind the power steering pump- only accessible by removing the oil filter and using an extension and a u joint BUT FIRST: lower the anti freeze in the system by draining some fluid. But anyway- THAT'S where it is. Have fun, fix it up and GO!

Dec 12, 2011 | 1999 Chrysler 300M

1 Answer

My 1999 300m has trouble shifting into 1st usually in the morning when it is cold outisde goes into reverse fine but then to first it takes about a minute to shift

When was the last time you changed the fluid and filter? It could be dirty inside and in need of fresh oil. Chrysler 4 trans fluid ONLY. NO other fluid will do. Just between you and I, did you add the Mercon fluid by mistake??? It's okay to admit it!
Anyway, change the fluid AND the filter and see how she behaves in the morning. Let us know if this helped. If it doesn't, further diagnostics may be needed.

Oct 24, 2011 | 1999 Chrysler 300M

1 Answer


Needs to relearn shift stratagies. May need scan tool help If trans shop did work take it back. Don't forget to use the right fluid. Even trans shops don't care.

Sep 18, 2009 | 2003 Chrysler 300M

1 Answer

2006 town and country is overheating.

what happens? running hot? if so replace radiator

Jul 06, 2009 | 2006 Chrysler Town & Country

Not finding what you are looking for?
2003 Chrysler 300M Logo

Related Topics:

1,086 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chrysler Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers


Level 3 Expert

814 Answers

Are you a Chrysler Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides