why will my car start sometimes but not others
Get them cleaned and tightened. If that does not fix it then you may well have either a defective starter or a worn out ignition sw.
Why Your Car Might Not Start On A Cold Morning The Filter Blog Micksgarage Cold Morning Car Car Makes
However if the motor and the wires are in good condition this is not the reason why your car starts intermittently.
. If it is the switch you will not even here a clicking sound. Could be the started motor needs refurbishing could be the small wire to the solenoid is not making a good contact. A trip to an auto electrician for diagnosis will be worth the money.
The second probable cause for my car starts sometimes and sometimes it doesnt is probably the engine coil or coils that reached the end of their lifespan. Could be the solenoid. Up to 8 cash back If it is the you know you are getting fuel to the motor.
7 Fuel Pump Leak. 2 Bad Vacuum Leak. Car is not starting when turning the ignition key.
If the starter solenoid is not connected it can cause the car to start intermittently. The first thing to have your automotive buddy check dear are the battery posts and lugs. If the starter solenoid is not connected it can cause the car to start intermittently.
Very noisy when trying to turn on your car. This coil is distributing the electricity to the spark plugs. Low Level Of Fuel.
The engine will crank but not start. Second is a bad electrical connection such as a relay or solenoid that isnt properly closing. 5 Bad CamshaftCrankshaft Position Sensor.
It sounds like fuel injectors. When the sender gauge starts acting up it is usually indicating a problem with the pump also. Up to 8 cash back Starters sometimes develop bad spots on the armature of the starter motor.
It has a fuel presure valve on it. Or starting fluid anything flammable into the engine through either the throttle body or the vacuum hoose off the brake booster. FLAT OR WEAK CAR BATTERY LOSE OR BAD BATTERY CONNECTIONS-PERHAPS THE MOST COMMON REASON WHY THE CAR WONT START.
As you know on modern engines there is one coil per cylinder. The problem is easily diagnosed and the solution can be implemented at the same time install a new starter. These issues mainly occur in winter season as cold temperature affects an automobile in various ways.
Try jumpstarting the car when its not working if it works you can cross off the battery as a possible problem Also make sure battery cablesground have good connection and arent corroded. Why does my car start sometimes and not others. Dont overthink this one it is a common problem.
If gas does not come out. The Crank Position Sensor CPS when its failing will present itself in this manner. JustAnswer is not responsible for Posts.
If the starter is bad you might hear a clicking. A quick way to test for a fuel system problem is to spray some carbbrake cleaner. Or poor connections at one of these parts.
I am assuming this is a relatively recent model carlike recent within the last 20 years. First is a dead battery though this is easy enough to detect. Could be the battery voltage is too low and there is not enough power to actually start the car.
Common Reasons a Car Starts Then Shuts Off. That causes intermittent unreliable operation just like what you are experiencing. Answer 1 of 8.
Your starter solenoid is failing or has a bad connection. 1 Bad Idle Air Control Valve. Up to 25 cash back Disclaimer.
Especially if you park outdoors in a cold night you may notice the car hard to start in the morning. 6 Slipped Timing BeltTiming Chain. Information in questions answers and other posts on this site Posts comes from individual users not JustAnswer.
A faulty ignition module or ignition coil for petrol engines clogged fuel filter or fuel line. Faulty glow plug control module for diesel engines mostly when the engine is cold. Have someone watch the spark plug to see if it emits a spark.
The engine will turn sometimes and will not turn some other times. Some common symptoms include. Should be 600 total partslabor if so.
Another reason your car wont start is a clicking noise is a locked-up or damaged engine. Bad Engine Ignition Coils. If that does not fix it then you may well have either a defective starter or a worn out ignition sw.
Crank the car over very quickly just a few turns. If the starter solenoid is not working correctly your car wont start then starts the next day. If the distributor is bad than the engine will turn every time but it will not start running or.
Hear a loud clicking sound when turning the ignition key but the engine does not start. 3 Dirty or Faulty MAF Sensor. A jump start should revive the battery but keep jumper cables handy for the next time you try to start the car just in case the problem lies elsewhere.
The most likely causes would include a fault with the ignition switch battery cables fuel pump starter or low fuel pressure. Check your fuel injector rail. Most auto parts stores will test a battery for free to see if it has enough voltage and cold-cranking amps to start the engine.
Next pull one of the spark plugs out and hook one of the plug wires to it but be sure to do this away from the spark plug hole in the cylinder. Then its your fuel pump. Car wont start sometimes-cranks but doesnt start.
You need to keep the fuel tank full or at least half full during the colder months. Or the engine will crank for an extended time and then finally. If it does it agian after that.
Faulty glow plugs one or more. An engine can seize if your cars internal components get locked up and the crankshaft isnt able to turn on the bearings. Table of Contents.
Posts are for general information are not intended to substitute for informed professional advice medical legal veterinary financial etc or to establish a. 6 Things That Cause Car Hard To Start. Make sure you check for disconnected or contaminated wires that can prevent the electrical current from getting to the starter motor.
If your fuel filter is clogged the gasoline wont be able to reach the engine. Start with replacing a 8 dollar part. Given that yours will start sometimes but not other leaves a few possible causes.
You could be out of fuel have a bad fuel pump bad fuel pump relay blown fuse clogged filter bad crank position sensor something to do with the computer and probably a few other.
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