Skip the auto shop - Our mechanics make house calls

Q: Temperature problems

asked by on

I have a 1999 chevy tahoe. I replaced the intake manifold gasket a few months ago. After I replaced it and put everything back together I started it and drove it. After about 10 min of driving it started getting hot so I removed the thermostat and left it out til about a few weeks ago I put a brand new one in. Now the temperature gauge gets to the quarter mark on the gauge and no higher. And my heater isn't blowing hot, it blows kinda warm. What could be the problem be and how do I fix it? My email is russell.zack03@yahoo.com if u would like to email me some solutions. Thank u

My car has 193000 miles.
My car has an automatic transmission.

Hello there, there are many faults that will cause your 1999 Chevrolet Tahoe’s temperature gauge to only rise to 1/2 and the heat not function. The most common cause is air stuck in the cooling system, this commonly happens after repairs if the cooling system is not bleed. There are a few other potential causes such as the thermostat stuck open, cooling system leak, coolant temperature gauge fault, or a wiring harness fault. A qualified Technician such as one from YourMechanic will be able to diagnose your heater not working and temperature gauge reading low, making any repairs required to resolve the issue.

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: The interior lights flash when you press the brakes

Hi there. It really depends on what the source of the electrical glitch is; which will determine the repairs needed. I'd wager that the issue is an electrical fault with the brake switch that is causing this. However, since you...

Q: Heater is not working

The lack of heat being generated by your system may indicate a clogged heater core. The [heater core]((https://www.yourmechanic.com/services/heater-is-not-working-inspection) is a small radiator like unit that circulates the hot coolant from the engine through the heater core which then uses this...

Q: Over heating

Hello. Thank you for writing in. It sounds like you need to replace the thermostat housing, and possibly the thermostat as well. The temperature gauge on your dashboard is commonly misunderstood. The thermostat and temperature gauge will only give you...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.