# Overheating 03 neon **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** neon, dodge\ **Created:** [December 4, 2013, 7:21am UTC](https://community.cartalk.com/t/overheating-03-neon/82514 "2013-12-04T07:21:01Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![pappabear](https://avatars.discourse-cdn.com/v4/letter/p/b4bc9f/32.png) [@pappabear](https://community.cartalk.com/u/pappabear)\ **Post date:** [December 4, 2013, 7:21am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/1 "2013-12-04T07:21:01Z")
I have a 2003 dodge neon, a couple days ago i hit a bump and bottomed out on the front bumper and pulled a transmission hoes. after repairing that my car is now over heating, i have replaces the thermostat and the upper radiator hose. i am not leaking coolant, i have talked to several people on this and they say that it is either my water pump or i have a vapor/air lock inside the block, when i was replacing the thermostat i noticed that my coolant was a milky tanish color and was “chunky” and that is what is making people say that it is an air lock. but my hear is not blowing hot air, that makes me believe that it is the water pump… when i start the car it take the usual 10 or so minutes to reach normal temperature just like it did before all this, but then it shoots up to almost over heating in less than 5 or so minutes… I am really stumped by this and i am a college student so i rally cannot afforded a mechanic unless absolutely nessicary ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [December 4, 2013, 7:27am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/2 "2013-12-04T07:27:26Z")
@pappabear “after repairing that” Do you mean you replaced the transmission cooler hose? ASFAIK, the transmission cooler is actually part of the radiator Perhaps the coolant and trans fluid are now mixing, inside the radiator ---
**Author:** ![pappabear](https://avatars.discourse-cdn.com/v4/letter/p/b4bc9f/32.png) [@pappabear](https://community.cartalk.com/u/pappabear)\ **Post date:** [December 4, 2013, 7:32am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/3 "2013-12-04T07:32:41Z")
yes after the transmission cooler hose. Could it be a problem inside the radiator if the hoses are going back into the same places? ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [December 4, 2013, 8:12am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/4 "2013-12-04T08:12:07Z")
I should not do this. You are a college student and this is the way you write? ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [December 4, 2013, 8:28am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/5 "2013-12-04T08:28:48Z")
@pappabear Yes When you bottomed out, it’s possible you damaged the trans cooler, which is inside the radiator. In any case, your coolant is clearly contaminated with another fluid I suggest you also take a close look at that trans fluid. If it’s also strange looking, your problem is most likely the radiator ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [December 4, 2013, 8:37am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/6 "2013-12-04T08:37:23Z")
OP’er may need a new radiator. The coolant line for the transmission fluid probably goes through the inside of the radiator – that’s how it works on my Corolla, unused in my case as I have a manual xmission. Anyway, that line inside the radiator may have cracked, allowing the coolant and transmission fluid to mix. This could quickly damage both the engine and the transmission. Not a good thing. This needs to be addressed asap. If this were my car I’d take it to a local radiator repair shop for diagnosis. They see this kind of thing all the time, know how to test for it, have the tools, and know the repair options available. ---
**Author:** ![oblivion](https://avatars.discourse-cdn.com/v4/letter/o/3ab097/32.png) [@oblivion](https://community.cartalk.com/u/oblivion)\ **Post date:** [December 4, 2013, 4:16pm UTC](https://community.cartalk.com/t/overheating-03-neon/82514/7 "2013-12-04T16:16:01Z")
I think this is getting beyond what you can accomplish with your skill level and experience. It sounds like you may have a damaged transmission cooler as others have said, or possibly a blown head gasket on the engine, which will cause all of these symptoms as well: brown coolant, overheating, heater not working properly. If you allowed the engine to overheat for long, if you didn’t have a blown head gasket when you started, you may have now. You really need a shop to do a proper diagnosis at this point. At the very least with “brown, chunky coolant” you desperately need a coolant flush. Trapped air will not cause your coolant to look this way–there is something else going on. The longer you drive it like this, the more likely you will seriously damage your car. ---
**Author:** ![keith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/keith/32/5518_2.png) [@keith](https://community.cartalk.com/u/keith)\ **Post date:** [December 5, 2013, 9:43am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/8 "2013-12-05T09:43:02Z")
Better be checking that ATF as well or you will need a new transmission too. ---
**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\ **Post date:** [December 7, 2013, 12:04am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/9 "2013-12-07T00:04:14Z")
If you are not getting heat and the engine temp shoots up, you have air in the system and it needs to be bled. ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [December 7, 2013, 12:13am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/10 "2013-12-07T00:13:01Z")
The guy has a much more serious problem than air in the system He said the "coolant was a milky tanish color and was “chunky” . . . " ---
**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\ **Post date:** [December 7, 2013, 12:28am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/11 "2013-12-07T00:28:29Z")
I know. I was just letting him know that he had not bled it properly. That way he can do the job right in the future. ---
**Author:** ![Docnick](https://avatars.discourse-cdn.com/v4/letter/d/ecae2f/32.png) [@Docnick](https://community.cartalk.com/u/Docnick)\ **Post date:** [December 7, 2013, 11:49pm UTC](https://community.cartalk.com/t/overheating-03-neon/82514/12 "2013-12-07T23:49:41Z")
Many Neons have head gasket problems, and I fear yours is probably in the same situation. A proper cooling system and engine compression test will quickly determine the extent of the problem. The standard cost here is about $900 to replace a Neon head gasket. You should budget that much at least. ---
**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\ **Post date:** [December 9, 2013, 6:48am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/13 "2013-12-09T06:48:00Z")
I think they pretty much fixed the problematic head gasket issue by '03, but it sure sounds like that’s what’s going on here. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [December 9, 2013, 7:11am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/14 "2013-12-09T07:11:29Z")
I think he needs to 1. test and likely replace the radiator, 2. flush both the tranny and the engine cooling system, and 3. pray that no permanent damage has been done due to he fluids mixing. ---
**Author:** ![oldtimer-11](https://avatars.discourse-cdn.com/v4/letter/o/e79b87/32.png) [@oldtimer-11](https://community.cartalk.com/u/oldtimer-11)\ **Post date:** [December 9, 2013, 6:26pm UTC](https://community.cartalk.com/t/overheating-03-neon/82514/15 "2013-12-09T18:26:22Z")
Antifreeze is very corrosive to engine bearings, I think if the transmission cooler in the radiator is damaged that this car has a short life span. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [December 9, 2013, 7:32pm UTC](https://community.cartalk.com/t/overheating-03-neon/82514/16 "2013-12-09T19:32:54Z")
True, oldtimer, but coolant can’t get to the engine oil via a breech in the radiator. The tranny might be toast, however, but it’s worth changing the radiator and flushing everything out. Often our worst fears don’t turn to reality. ---
**Author:** ![oldtimer-11](https://avatars.discourse-cdn.com/v4/letter/o/e79b87/32.png) [@oldtimer-11](https://community.cartalk.com/u/oldtimer-11)\ **Post date:** [December 10, 2013, 3:03am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/17 "2013-12-10T03:03:37Z")
Can’t believe I had brain fade like that-lol. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [December 10, 2013, 3:45am UTC](https://community.cartalk.com/t/overheating-03-neon/82514/18 "2013-12-10T03:45:32Z")
Good Lord, oldtimer, if brain farts were toxic I would have killed my entire neighborhood by now! Just this past week alone! 🙂