What does it mean if your starter is making a grinding noise?
Honda Accord /Civic :Why Starter Making Grinding Noise1.Flywheel should be suspect firstly.You need go ahead and climb back under your 2006 Honda Civic or 2007 Honda Accord and remove the access panel under the bell housing of the transmission. This will give you access to the flywheel. Using a flashlight you can inspect the teeth on the flywheel for any abnormal wear, then use a ½ inch ratchet and correct size socket for the crankshaft pulley bolt, and turn the engine clockwise. This will allow you to slowly inspect the hidden areas of the flywheel that could be damaged. Be sure to mark the flywheel with white out or a marker so you can verify when you start and end as you rotate. If at any time you feel uncomfortable doing this, please enlist the assistance of a certified mobile mechanic. After check ,if the flywheel is damaged ,it will need to be replaced.2.If you are unable to see any issues with the flywheel itself, then the problem may lay in the electrical components of the vehicle.Some of the most common electrical problems are corroded electrical connections, an undercharged or bad battery, or a malfunctioning component:bad neutral safety switch (automatic transmission),bad clutch safety switch (manual transmission),bad starter relay,bad starter solenoid,corroded electrical connections in the starting circuit,worn-out part in the starter motor or some other system component.For example,the ignition switch has failed to supply proper voltage to the starting circuit causing the starter solenoid to partially engage which can create a grinding noise .In this case,you could check the battery/relay/solenoid /ignition switch.If it’s a small problem,you could buy some aftermarket replacements then fix it.If you aren’t sure and don’t know how to do ,maybe a new starter at hexautoparts for your honda accord civic or a certified mechanic can get you back on the road quickly and safely.Anyway,if you hear a harsh or grinding noise as you try to crank up the engine, you may have a loose starter motor (mounting bolts), or a flywheel or pinion gear with broken or worn-out teeth. If the gears on the flywheel and pinion aren't able to mesh properly, all you hear is the sound of metal teeth clashing loudly.Hope that helps.
What is causing my Ford Focus to make a noise for 5 minutes after turning the engine off?
This is pretty difficult to diagnose based on your description. What year is the car and which engine does it have? Can you give a description of the noise and what volume it is? What part of the car does the noise come from? To be blunt, I’m tempted to downvote the question for giving so little useful detail.However, there are a couple of things that come to mind.If it’s a turbo, most modern cars have a pump that will run to circulate coolant through the turbo so residual heat doesn’t cook the oil into a solid and cause blockages in the oil passages. Also, if it’s a gasoline engine, some newer cars will run a pump that puts pressure on the fuel system and fuel tank to check for leaks. This is for emissions purposes. Finally, I believe some of it might have to do with the high pressure fuel pump on direct injection cars.In any event, many modern cars have systems that continue to function for a few minutes after the car is shut down. If the sounds are fairly quiet whirring noises and they’re consistent every time you shut the car off, don’t worry about it.
Why was there a clicking sound under my car hood after I turned it off?
Not knowing your year, model and engine I can only tell you some general items that pertain to most cars.There electrical relays and switch's ,about 2 dozen on average. When you shut the car down the radiator fans can be active until the engine temp cools to specs. Evaporative emissions systems do some of their work at shutdown. Fuel systems depressurize in many engine in order to prevent wear that constant pressure can induce. Many of today's cars have automatic parking brakes and many cars have done away with cables and use electronics to change gears and engage park. Some ABS brake system cycle at shutdown and idle air control can be active at shutdown. I can go on and on but I think this should help you to understand that electrical relays and fluid pressure systems all can make clicking noises after shutdown.I assume that the louder more random ticks with a metallic sound you know are metal parts cooling down after shutdown.Most of the relay sounds are done with in 2 mins and the metal cool down noises are done with in 5–10 mins depending on temp.As a bonus I will bring to your attention a fairly new item not quite under the hood but behind the grill and that is electrically operated “grill flappers” or “blinds per se” that help your car control temp and help aerodynamic performance at higher speeds. My wife's car opens them up after shutdown if they were closed at that point.Hope this helps!