Skip the auto shop - Our mechanics make house calls

Q: Car won't start after driving without the cap on the antifreeze.

asked by on

I was putting antifreeze in my explorer and forgot to cap it back. I want driving and I noticed the car was smoking. I pulled over and put the cap back on. I drove almost home and the engine turned off at the stop light. I tried to start it and I'm getting a lil sound like it wants to crank but it doesn't. If it got all over my alternator would that stop it from turning over??? Please help me

My car has 181000 miles.
My car has an automatic transmission.

A: Hi there. From the description you have pro...

Hi there. From the description you have provided, antifreeze getting on the alternator would not keep the engine from turning over unless the battery was low. The alternator could have been compromised by the antifreeze, if your vehicle was driven far enough with the alternator not charging.

This would account for the engine turning off and not turning over, assuming the engine was not overheated due to the low antifreeze level. The battery and alternator require inspection. I recommend having a certified mechanic, such as one from YourMechanic, determine why your vehicle won’t turn over and suggest any needed repairs.

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: I think the motor is having a starting issue. New battery, separate solenoid, and put in a new starter. Are all the cables good?

Hey there. The starting system has to turn the engine over at a certain minimum rate (RPM) in order for the engine to catch and run. If there is no voltage drop between a new fully charged battery and the...

Q: Motor locked up and won't turn over

There are a couple things to look at before the engine is condemned. First, try to turn the engine over by hand. If it does turn, it could be starter related. If not, remove the spark plugs and drive belt(s)...

Q: I turned on my car but it kept turning over and wouldn't start. When it caught, it sputtered and turned off.

Hi there. Check the fuel system for any leaks. If there is no leaks, then go to the fuse box under the hood and locate the fuel pump relay. Check the relay and see if it is clicking when 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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control 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.