Skip the auto shop - Our mechanics make house calls

Q: car runs hot and sometimes have to shake battery to start sometimes

asked by on

I have brought an new battery, water pump and a used alternator and a new thermostat. My car runs hot after driving for maybe 10 mins, it doest shoot water out or anything it'll just go back down for a little while then back up again. i do sometimes smell like a metal smell when it gets hot. With the battery sometimes it just cuts off in the middle of the road i have to get out and shake the battery. I did get the black battery post changed but not the red one. the red one is the really thin post and the black one i brought is really thick. could it be the post on the battery or is it the wires to the battery or what?
My car has an automatic transmission.

A: Hi and thank you for contacting YourMechani...

Hi and thank you for contacting YourMechanic. It sounds like your thermostat may be sticking. I would recommend replacing the thermostat first. You may possibly need a coolant system flush. This will clear any clogged water passages in your engine. If your car is shutting down unexpectedly it is most likely a ground issue. I see you have just bought a new battery, but make sure there are no battery cracks, leaks, or loose terminals. Getting out and having to shake the battery to get it to start again is a good indication of a bad ground. You can test this with a multi meter - you need to have at least 12.5 volts (13.5 - 14.5 optimum) when touching the red lead of the multi meter to the positive terminal on the battery and the black lead of the multi meter to the ground point at the end of the black negative battery cable. If you need assistance, YourMechanic can send a certified technician to you and perform these tests and make any necessary repairs. Thank you.

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: Window will not close

Hello. It sounds like the window motor failed. It is much easier for a failing motor to lower and window and not be able to close it. I would typically remove the door panel and first check the voltage at...

Q: Sway bar broken

If the sway bar is broken I would recommend having the sway bar and/or sway bar links replaced. The sway bar keeps the vehicle level during turns and prevents either side from dipping in while turning. This improves the overall...

Q: Hi, my daughters 2005 Ford Freestyle overheated taking my grandson to school this morning.

First off, to avoid going from the frying pan into the fire, if the car is overheating be sure to not drive it any further. Active (known) overheating has the potential to cause lots of additional problems, like a warped...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...