Skip the auto shop - Our mechanics make house calls

Q: I have a 99 tahoe and yesterday i had a leak i looked and seen my heater hose was shooting out antifreeze and shortly after my car

asked by on

I have a 99 Tahoe and yesterday i put coolant in it it and looked and seen my heater hose was shooting out antifreeze amd shortly after my car was driving at a constant speed it would hit 40 and just stay at that speed

My car has 227 miles.
My car has an automatic transmission.

A: The computer may sense the vehicle is overh...

The computer may sense the vehicle is overheating or the coolant is leaking and causing the engine to go into failure mode. Have the coolant leak fixed and check and document all codes. Then have the codes cleared to verify that the codes come back. To prevent this issue from getting any worse, I recommend having a certified technician, such as one from YourMechanic, inspect your vehicle to diagnose the potential overheating issue and assist you with repair.

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: Cam Position Actuator problem - 1999 Volvo S80

Hello I believe you are referring to the variable valve timing or camshaft position actuator/solenoid, which varies the camshaft timing relative to the crankshaft position. This feature enhances engine performance, mileage, and lowers emissions. If you are able to get...

Q: What could be cause of coolant leak after replacing cap and low fan relay? 2012 Chevrolet Cruze

Coolant leaks can originate from a few different places. A pressure check of the cooling system can be performed, subjecting the entire system to higher-than-normal pressures under controlled circumstances to find weak points. Leaks could be coming from hoses, hose...

Q: AC not blowing cold air

Hi there. If the AC is blowing cold air then it should be fine. If you meant to say that it is not blowing cold air then it may have a condenser problem, but that is not common. Most condenser...

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.