Skip the auto shop - Our mechanics make house calls

Q: Heater blowing cold air

asked by on

Heater will not blow hot air. Have circulation in heater core, diverter gate working, good thermostat. Water disappearing with no leaks found anywhere

A: Hello. You are likely looking like an inter...

Hello. You are likely looking like an internal leak somewhere in the system. If there are no visible leaks inside of the engine bay or visible leaks on the ground, then the engine is consuming the coolant. Have there been any signs of white smoke or steam coming from the vehicle? This is typically caused by a bad head gasket. A 1996 is bound to have issues with a head gasket at some point, specially if it has never been replaced. The poor heater function is likely due to the lack of coolant in the system. The head gasket replacement itself is actually relatively easy, however accessing the head gasket can be an incredible endeavor. It involves removing a number of components from the engine, and reinstalling them correctly afterwards. Long story short, with no external leaks, the engine is likely consuming the oil due to a bad head gasket that will need to be replaced.

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

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: Car squeaking when driving

Hello. I will assume your vehicle is equipped with a manual transmission as it sounds like you are shifting gears yourself. The symptoms you've given are leading me to a malfunction in your clutch assembly, or engine and transmission...

Q: Fuel is leaking.

This suggests that you may have a fuel leak. There are many different places where the car may be leaking fuel from. There are fuel lines that run from the fuel tank along the underneath side of the chassis up...

Q: Bad fuel pump or another issue? 1992 GMC C1500

Hello - I agree with you that this is likely a fuel supply issue. There are several possibilities as the source of the problem fuel pump or fuel pump relay (runs, but gets hot and fails), fuel filter clogged, dirty...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.