Skip the auto shop - Our mechanics make house calls

Q: My service light says service temp. What do I need to look for?

asked by on

Service light said service temp I have no ac or heat why is that?

My car has 153000 miles.
My car has an automatic transmission.

A: Hi there. A low coolant level can illuminat...

Hi there. A low coolant level can illuminate the service light and create the heating and AC problem you have described. Check the coolant level while the engine is cold and top it off as necessary. Also, look around the engine bay for any obvious signs of a coolant leak (a pressure test is superb at finding leaks). I strongly suggest having a qualified technician, such as one from YourMechanic, perform an inspection to diagnose any coolant leaks so you can avoid any unnecessary part replacements.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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

Get a quote

What others are asking

Q: My car shuts off while I'm driving sometimes and makes a bubbling noise once the car is warmed up or if I'm driving

Your coolant overflow reservoir usually bubbles when the engine has a restriction that causes the flow of coolant to be reduced. This can lead to or be a cause of the engine to overheat. I would recommend getting a coolant...

Q: My 2003 Honda Accord European has developed a gearbox transmission issue.

Hi there. When the transmission is not shifting then this is a condition called limp mode. The computer put the transmission in limp mode for a fault that the computer picked up. Check the wiring harness to the transmission and...

Q: Heated windscreen

If the broken windshield that was replaced was the original OEM Ford factory installed part and that windshield did not have the complained of "line" or obstruction, then what you are seeing is not "normal". You can check to see...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.