Skip the auto shop - Our mechanics make house calls

Q: O4 Chevy Cobalt flooded

asked by on

I have an O4 Chevy Cobalt flooded at work, up to about the headlights, but the water got down after 15 minutes. While the water was up, no key in car, the lights went on and the wipers and the radio. Later I've tried charging battery and nothing.

A: I hate to be the bearer of bad news but it’...

I hate to be the bearer of bad news but it’s time to junk your Cobalt. Everything in that car is run by computers. If you get that much water, the whole system is shorted out. When it did that, the battery was still connected to the car and the computer still had power.

They all are going to be shorted out, and now they are going to go out pretty fast. When they go in that deep water, it’s time to junk them. If you want to attempt to fix it, pull all the computers you can find out, bring them to your house, heat them with the hair drier and dry them up.

Maybe you’ll get lucky and they start up again. You never know. But don’t spend any serious money because it’s probably ready for the junkyard now. When they get that deep, I’m assuming that it’s old and you didn’t have full coverage. If you have full coverage they will tow the car, but if you don’t, don’t spend a lot of money on it, because odds are that it’s just ruined.

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 keeps shutting off.

The vehicle may be having throttle body issues. There is a special technical service bulletin and coverage that may pertain to this problem you have. It will cover replacement for 10 year 120,000 miles. The bulletin number is 14582A. Call...

Q: About how much would it be for a new axel and the labor to fix it?

Hi there. Although this is something we might be able to offer, you might want to contact a local body and automotive repair shop, so they can inspect the entire vehicle and provide you with an accurate estimate on repairs;...

Q: My car won't go up steep hills

Hello. Going up a hill is considered "extra load" on the engine. Issues with handling this extra load are typically due to poor engine performance. Starting with the spark plugs was a good idea. When you change the ignition coils,...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.