What are some symptoms of a bad idle air control sensor?
Idle air control valves open to allow more air to "leak" into the intake, raising the engine rpms, or close when not needed. When your AC compressor kicks in or power steering is activated as you suddenly turn the steering wheel, the sudden drag on the drive belt will bog down the engine. These systems send a signal to the engine computer telling it they are active and it then signals the IAC valve to open, which increases the engine speed. Without this occurring, the engine could struggle, or die. The IAC valve can cause weird idle issues, mess with throttle functionality or cause the car to die. Sometimes they fail, get stuck or just get all carboned up. Sometimes people have success at cleaning them, but generally it is best to replace them when bad. Idle issues and even problems with the IAC valve may not be due to the IAC valve being bad itself. An idle issue does not mean the IAC valve is bad. It is best to pay close attention to how the vehicle is acting, and then communicate that clearly and as completely as possible to your mechanic. Intermittent problems can be very hard to diagnose. Details will help. Knowing more about the vehicle in question and its symptoms (in detail) will also help in understanding more about what it is doing.
What causes oil to blow by the dipstick?
If you are lucky, it is just a stuck PCV, which sometimes can be cleaned, but can be replaced for under $10 in most cars without disassembling anything (valve is at one end of the tube from the engine (often valve cover) to the intake. This valve allows air to be sucked out of the oil pan to create a slight vacuum and help reduce oil consumption. This valve is on most cars since the mid-1960’s.Some have said a bad o-ring on the dip stick, but many cars do not have one to go bad.But more seriously, it is a worn engine or stuck rings from not changing your oil on time or not using a thermostat. If the rings can’t push out (from the pressure of the combustion), the combustion gasses will “blow-by” the rings into the oil pan and out the oil filler or dip stick. You could have also caused it by using oil thicker than recommended in your manual, reducing lubrication on startup and in general.
How do I solve a cylinder 3 misfire?
Misfires are flagged due to lack of contribution from that cylinder. Lack of contribution means that that cylinder is not producing adequate combustion or no combustion at all.Misfires are caused by lack or weak spark due to faulty plugs, coils , coil wires, distributor caps ( if so equipped).Or, fuel issues, no fuel or too much fuel or too much air ( vacuum leak). Fuel related culprits could be injectors, clogged or not pulsing due to internal failure or drivers in the PCM or wiring to injectors.More serious issues are engine internals such as valves not sealing. Usually exhaust valves. Or worn cam lobes, or broken valve springs.So, eliminate the easy things first. Verify spark and measure strength of spark with a cheap spark tester. You should have a minimum of 30 KV jumping the gap. Swap plugs and or coils to see if the misfire travels to another cylinder.Eliminate fuel and vacuum leaks issues with a propane test. Carefully introduce propane to the affected cylinder.
Where is the crankshaft position sensor located on a 2010 Chrysler Sebring 2.4L?
It is mounted on the side of the block, firewall side at the front, nearest the drive belts, just back from the arm that has the oil filter. All you will see of it is the round disk with the electrical connector and a 10mm bolt holding it in place. The rest of it is in the block.