Q: Car is having temperature issues - 2003 Nissan Altima
Cold while sitting, warms up while driving, soon as I stop athe light or stop sign it gets cold like the ac is on. Had a cracked gasket but put k seal in it, it fixed it for mean time but antifreeze is going great fast and car not putting out warm heat , what do I need to do , and how much. Thanks
My car has 221000 miles.
My car has an automatic transmission.
Recommended Services
| Cooling System Flush | $201.32 - $237.92 | Get a Quote |
| Thermostat Replacement | $157.20 - $759.78 | Get a Quote |
| Heater is not working Inspection | $94.99 - $114.99 | Get a Quote |
Hi there. From the description you have given, your vehicle’s heater not working is not the only problem that needs to be addressed. Chances are the sealer could have plugged the heater core. A cooling system flush could correct the inoperative heater but could also start the gasket’s leaking again. It could be that the engine’s thermostat is stuck open not allowing the engine to get to operating temperature.
I recommend having your vehicle’s not putting out warm heat be diagnosed and repaired by a certified technician, such as one from YourMechanic.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
Get an instant quote for your car
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
What others are asking
Knocking from the engine
Although it is unlikely to be the cause, I would recommend checking your engine oil level. If your oil level is low, the engine will not be lubricated sufficiently enough to function properly and will therefore make knocking sounds as...
Battery light on and vehicle died while driving
Hi and thank you for contacting YourMechanic. First thing to do is get the new battery checked (https://www.yourmechanic.com/article/how-to-check-a-car-battery) and new alternator checked (https://www.yourmechanic.com/article/how-to-test-your-alternator_2). In my years as a mechanic, there has been multiple times when I have installed a new...
The car has no compression and there is a lot of oil in the cylinders how would I fix this?
Hi and thank you for contacting YourMechanic. If there truly is no compression and signs of oil inside the cylinders (https://www.yourmechanic.com/services/oil-is-leaking-into-spark-plug-well-inspection), the only way to fix this issue is to have the engine rebuilt. The piston rings are worn or...
Misfire in cylinder #4
You should be fine to drive for a day or two with a misfire on one cylinder, however I would not recommend letting this go un-repaired as this is something will only get worse and may trigger additional problems and...
Air conditioner blowing hot air on drivers side
If the air conditioning system is on and vent temperatures are as expected for a/c at certain outlets (typically outlets would measure around 35-40 degrees below outdoor ambient) yet the air blowing from other outlets is "warmer" or indeed "hot",...
My car pulls to the driver's side when braking, i've fitted new pads and a new caliper on the passenger side but no difference.
Hello, and thank you for writing in. There are several reasons why your vehicle may pull to one side or the other while braking. The first thing to consider is a warped rotor or faulty brake pads. When you replace...
My car ia leaking green fluid what does that mean
Hi There, This suggests you have a coolant leak (https://www.yourmechanic.com/services/coolant-is-leaking-inspection), which is most likely also contributing to the engine overheating when sitting at idle. When the car is in motion and the fans are working to pull air into the...
Overheating
Hi There, Overheating can be caused by a number of things such as low coolant levels, a faulty thermostat (https://www.yourmechanic.com/services/thermostat-replacement), a clogged radiator (https://www.yourmechanic.com/services/radiator-replacement) or a failing coolant fan switch. As you may know the coolant fan switch (https://www.yourmechanic.com/services/cooling-fan-relay-replacement) helps...
What do I do to get my car started. Neither ignition key will start car
To determine if an easy resolution exists, please refer to YourMechanic's DIY stuck key remedies page (https://www.yourmechanic.com/article/how-to-diagnose-an-ignition-key-that-won-t-turn). If none of the many suggestions on that page resolve your issue, it will be most efficient if a certified mechanic travels right...
Related articles
3 Essential Things to Know About Your Car’s Temperature Gauge
A car temperature gauge shows how hot the engine is. If the temperature gauge reads high, your car could be leaking coolant or have a bad water pump.
How Long Does a Heater Bypass Tube Last?
In In order for the cooling system on your vehicle to work, you will have to make sure that all of its components are repair free. The thermostat that is on your vehicle helps to regulate the flow of coolant...
Top Five Selling Cars in Colorado in 2012
Colorado Colorado offers a varied climate depending on where drivers are located. Those in lower elevations see plenty of sunshine all year, while those in the mountain areas can see as much as 300 inches of snow. Due to this,...
Browse other content
Services
Maintenance