My 2004 started to heat up all the time please help !!!!!!!!!!!

Asked by Jun 11, 2012 at 12:19 PM about the 2004 Chevrolet Aveo LS

Question type: Maintenance & Repair

Car just started heating up. I had the ac on so I ran it with it off and it still heats up.

2 Answers

415

First off, make sure you have an adequate coolant/water ratio & your radiator is full when it's cool. Then, make sure your fan is coming on when engine gets warm/hot. If those two things are fine & working properly, you might have a thermostat sticking, or not opening. This would not allow the coolant to circulate throughout the system & cool properly. It is also possible that you have a plugged radiator. To test to see if your radiator is plugged, when your car is running & heated up, CAREFULLY feel the lower radiator hose. If it is cool-warm to the touch, the radiator could be plugged as it isn't allowing the coolant to run through it, thus the hose will be cooler because the hot coolant isn't making it through the hose. You can also check to see if the thermostat is opening by removing the radiator cap, start the engine, and watch inside of the radiator while the engine is warming up. When your temp starts to build, you should be able to see the coolant start to move/flow when the thermostat opens, as the water pump will be moving the coolant- circulating it throughout the system. If your engine temp reaches the hot stage & it doesn't open and circulate, your t-stat failed. Are your fans/fan coming on? It is also ran off a temp. sensor & should kick-on when engine starts to get hot. Check fuses for the fan first if it isn't coming on when engine gets hot. How does your coolant look? Have it tested to see what it's boiling point & freezing point is. Make sure you don't have any oil appearing in the coolant, or any moisture appearing in the oil too, as this would indicate a blown head gasket which would cause it to overhead, or can be a result of it overheating. Those little engines are very sensitive to overheating, so get it resolved asap before any major damage happens.

7 out of 7 people think this is helpful.
40

I have checked it all, and it still heats up a little

4 out of 4 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Chevrolet Aveo Questions

Chevrolet Aveo Experts

#1 Tom Demyan
Tom Demyan
Reputation 280
#2 FordNut
FordNut
Reputation 230
#3 T_S_T
T_S_T
Reputation 150
View All

Related Models For Sale

Used Chevrolet Cobalt
43 Great Deals out of 4,796 listings starting at $1,500
Used Ford Focus
699 Great Deals out of 58,603 listings starting at $995
Used Honda Civic
669 Great Deals out of 77,405 listings starting at $1,000
Used Chevrolet Spark
61 Great Deals out of 11,307 listings starting at $4,995
Used Chevrolet Malibu
1,003 Great Deals out of 85,673 listings starting at $1,995
Used Toyota Corolla
871 Great Deals out of 74,381 listings starting at $1,500
Used Ford Fiesta
161 Great Deals out of 16,555 listings starting at $2,999
Used Hyundai Accent
185 Great Deals out of 12,580 listings starting at $150
Used Chevrolet Impala
795 Great Deals out of 34,381 listings starting at $799
Used Hyundai Elantra
567 Great Deals out of 55,004 listings starting at $1,000
Used Honda Accord
812 Great Deals out of 81,598 listings starting at $899
Used Kia Rio
102 Great Deals out of 7,317 listings starting at $1,399