The heater only blows cold air. I have replaced the thermostat but still no warm air. The temperature is running normal.
Feb 10, 2014 at 9:18 AM
heater not working
1999 TOYOTA TACOMA
MICHELLE MCGEE
- MEMBER
- 1 POST
Advertisement
JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,194 POSTS
Hi,
First, take a look through this link and see if there is anything that is helpful.
https://www.2carpros.com/articles/car-heater-not-working
If it doesn't, do me a favor and try this. Start the engine and allow it to idle while the heater is on high. Allow the engine to reach operating temp. Once it does, feel both heater core hoses under the hood where they attach at the firewall. Both should be hot. If only one gets hot, then there is a chance the heater core is plugged. Also, I believe this year has a heater control valve that allows coolant to flow through the heater core. It should be mounted on the inlet heater hose and a cable will be attached to it. Make sure it is operational.
Do this and let me know what you find.
Take care,
Joe
First, take a look through this link and see if there is anything that is helpful.
https://www.2carpros.com/articles/car-heater-not-working
If it doesn't, do me a favor and try this. Start the engine and allow it to idle while the heater is on high. Allow the engine to reach operating temp. Once it does, feel both heater core hoses under the hood where they attach at the firewall. Both should be hot. If only one gets hot, then there is a chance the heater core is plugged. Also, I believe this year has a heater control valve that allows coolant to flow through the heater core. It should be mounted on the inlet heater hose and a cable will be attached to it. Make sure it is operational.
Do this and let me know what you find.
Take care,
Joe
Dec 15, 2020 at 6:24 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.