Overheating

Tiny
SMGRIEGO
  • MEMBER
  • 2007 DODGE CALIBER
  • 70,000 MILES
Car on highway has been overheating on long road trips. I have plenty of coolant and the thermometer guage stays in middle of H and C. Im not sure whats happening or why. My car will slow down at a certain speed and the guage will show the heat rising
Tuesday, July 30th, 2013 AT 10:34 AM

21 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Has the engine actually overheated? As far as the slowing down, the computer will shut the engine down if it thinks it is overheating.
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Tuesday, July 30th, 2013 AT 7:09 PM
Tiny
SMGRIEGO
  • MEMBER
  • 6 POSTS
No it didnt actually overheat I pulled over for about twenty mins.
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Wednesday, July 31st, 2013 AT 8:42 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
The reason I question if it overheated is because it may deal with the temp sending unit. It may show hot, but the engine may not actually be hot.
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Wednesday, July 31st, 2013 AT 3:33 PM
Tiny
SMGRIEGO
  • MEMBER
  • 6 POSTS
Thats what the gauge with the H and C level showed, that it was at normal temp, but the temp light went on and the car slowed down. Im a little worried this car has given me so much crap Im so tired of it all!
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Thursday, August 1st, 2013 AT 9:09 AM
Tiny
SMGRIEGO
  • MEMBER
  • 6 POSTS
Being a single mother and only one vehicle and no mechanic.
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Thursday, August 1st, 2013 AT 9:15 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Since the engine isn't actually overheating, I believe you have a bad temperature sending unit. What happens is this. If the computer thinks the engine is overheating, it will shut things down to trying to eliminate the problem.
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Thursday, August 1st, 2013 AT 8:50 PM
Tiny
SMGRIEGO
  • MEMBER
  • 6 POSTS
Is this something cheap to fix? Do you know how much they run and would I beable to do it myself?
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Friday, August 2nd, 2013 AT 8:02 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
A sending unit should be under 20.00 and all you do is unscrew the old one and screw the new one in its place.
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Friday, August 2nd, 2013 AT 7:34 PM
Tiny
SMGRIEGO
  • MEMBER
  • 6 POSTS
Would the manuel have it pictured for me to find it? Im sorry for all the questions!
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Monday, August 5th, 2013 AT 8:11 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Don't worry about the questions. That is why I'm here. Our online manual shows the same pictures for all 3 engines ( 1.8L, 2.0L, 2.4L )

Here's a guide to read on changing the coolant sensor in a car. Its not vehicle specific, but it will give you an idea of what is involved

https://www.2carpros.com/articles/coolant-temperature-sensor-cts-replacement

The locations are attached below
Images (Click to make bigger)
Thumb
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Tuesday, August 6th, 2013 AT 7:42 PM
Tiny
  • MEMBER
  • 0 POST
My car actually gets hot and I have to run heater on high to get temp to stay halfway
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Wednesday, November 28th, 2018 AT 6:48 PM
Tiny
TNDRAEG
  • MEMBER
  • 3 POSTS
  • 2007 DODGE CALIBER
  • 4 CYL
  • FWD
  • MANUAL
  • 90,000 MILES
When I am idling or in heavy traffic in summer car temperature wil rise, but as soon as I am driving normal, will go back to normal, in winter does not do this
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Wednesday, November 28th, 2018 AT 6:55 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Cooling fans on?
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Wednesday, November 28th, 2018 AT 6:55 PM (Merged)
Tiny
TNDRAEG
  • MEMBER
  • 3 POSTS
Car has no air conditioning
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Wednesday, November 28th, 2018 AT 6:55 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
The cooling fans for radiator has nothing to do with or without AC
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Wednesday, November 28th, 2018 AT 6:55 PM (Merged)
Tiny
TNDRAEG
  • MEMBER
  • 3 POSTS
Don't hear fans
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Wednesday, November 28th, 2018 AT 6:55 PM (Merged)
Tiny
MANDY8P
  • MEMBER
  • 2 POSTS
  • 2008 DODGE CALIBER
  • 107,000 MILES
Four days ago my caliber started over heating. I checked the thermostat seemed to be fine, I replaced the fuse for the fans and changed the radiator cap, because the seal was cracked. I am at a loss of what else to do, I can drive about 2 miles and it begins to overheat, when I turn on the heat the temp goes back down to normal, also the engine is making a ticking sound, please don't tell me its the alternator. Any suggestions as to what else to look at? Thanks
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Wednesday, November 28th, 2018 AT 6:55 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
If not on possible reasons are temp sensor, relay or fan motor. Warm engine to operating temp fans come on at 190 -200 if not test for voltage at fan
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Wednesday, November 28th, 2018 AT 6:56 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
By check tstat did you replace it? Make sure coolant is full then have pressure checked for internal leaks. If you are turning the heat on it may be an electrical issue have a pro manually check the temp while it is overheating
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Wednesday, November 28th, 2018 AT 6:56 PM (Merged)
Tiny
MANDY8P
  • MEMBER
  • 2 POSTS
Did not replace the tstat, tested it and it opened like it should.
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Wednesday, November 28th, 2018 AT 6:56 PM (Merged)

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