Skip the auto shop - Our mechanics make house calls

Q: Overheating, mostly when car is not going forward

asked by on

1st symptom: radiator started leaking. Had to change top compartment of it. 2nd symptom: smells something hot from the motor 3rd symptom: 4 overhead spark plug bobbins burnt out I don't see over-temperature on the temperature gauge in the panel. Even when the car is running, at its normal temperature, the fans are not working for most of the time. I have seen that they start only for 10 or 15 seconds and then they stop. You can smell that it's hot, as if the cables are overheating. I suspect something wrong with temperature switch or fan relay. I had just changed the 6 bobbins and I think they will burn out soon if overheat continues. Your kind help is appreciated.

Hello, thanks for writing in. If the fans are not coming on then it may be possible that the fan switch or fan relay are bad. I would test them to see if either of them need to be replaced. Keep in mind that most fans are wired to run only while the temperature is hot, and to shut off when the temperature falls back below the specified limit. If the switches are good then it may be possible that there is an issue with the cooling system that needs to be addressed. If you would like further help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

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: How do I remove the window regulator on my front passenger side door of my Hyundai I30 2010?

Hi there. The best advice we can offer here is for you to search online for a service and repair module for your 2010 Hyundai. It has much more detailed information about completing this service than we can offer on...

Q: Car overheating

Hello. I am assuming that your car is overheating. A car that overheats should not be driven to avoid engine damage. There are multiple reasons for an engine overheating; a stuck thermostat, blown head gasket, or an engine cooling fan...

Q: Lifters knocking on a 2007 GCM Sierra

If it doesn't happen all that often, and it doesn't happen on high speed, but is just idling--I'd live with that if I were you. Because with that kind of miles on it, all those lifters are going to be...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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...