Started my 2003 cts last night and for the first time I heard a rattling noise coming from under the hood - freaked me out because it was pretty loud. I drove the car home and on the drive home the noise stopped. When back out about 2 hrs later and the car would not start. It turns over - but it will not start. I have 101,000 miles on it. What could be the problem. I also have an extended warranty too.
It sounds like your alternator let go, therefore your battery is not charging, you will need to investigate further but the rattling would be explained by the alternator mechanically breaking internally and failing to charge the battery resulting in your present situation
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Usually, if you shut the heater off, then the temperature will climb. The interior heater will actually assist in cooling the engine's coolant. Subaru head gaskets rarely ever fail by the way. First, pressure test the cooling system and make sure you have no leaks.Also check the radiator cap for condition and fitment.Then check and/or replace the engine thermostat. Subarus are generally speaking, extremely reliable vehicles and don't often show these types of issues.
Have you checked your belts? A piece of belt may have come off and been slapping under your hood, and then fell off completely. While it was slapping, your computer would have detected the slow down of pulleys etc. and caused your engine light to come on. Then when the piece broke off, everything would be back to normal. Let me know!
I would start by splitting up the drive train to determine if it is accessory, engine or transmission related. There are a number of things that can cause a problem like this. 1) Is the noise louder in drive or reverse. 2) I would start with heat-shields because of your "clank" description. Exhaust manifold, catalytic converter shields and any other you can find under hood or under body. 3) If all is good, check engine and transmission mounts. Make certain none have collapsed, cracked or broken. 4) If all good, remove all accessory drive belts and start engine to see if noise goes away. That's a lot to start with, so let me know what you find and we will go from there. Regards.