i have new battery new battery clamps and cables, new strter cilanoid and no power
its a f250 1981, manual, my beater we do a lot of mud bogging, haven't had much problems until this last week, I got a new battery, battery clamps and cables, new ground, new starter solenoid, and still no power the headlights wont turn on or the heater, any little tricks would help I even tried to quick start the solenoid
My car has a manual transmission.
My car has a manual transmission.
Experienced mechanics share their insights in answering this question :
Hello, thank you for writing in. If you are not able to get the starter to turn over or make any noise what so ever, then you need to start by checking the power supply to the starter solenoid. If it has a full 12 volt power supply available, then you are having either electrical or mechanical issues with the starter or the new solenoid. It may even need to be shimmed so that the gears are aligning correctly. If you do not have a full 12 volts available at the starter, then you need to trace down the electrical fault. You can start at the battery or the starter, and trace back until you find where the voltage from the battery drops off. There in lies your problem. For more help with this testing, contact our service department to schedule an appointment.
How to Identify and Fix Common car Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced mechanics :
Bad Spark Plug Or Broken Distributor Cap/Rotor
If you have a good battery and enough fuel in the gas tank and your car still won`t start, chances are you have a bad spark plug. Why? A bad spark plug will prevent fuel ignition, and the vehicle won`t move.
A blown fuse in the starter circuit could be the cause of a no-start problem. Broken or corroded wiring – Damaged or dirty wires to the battery or to the starter solenoid (or wires that are loose) can prevent sufficient power from reaching the starter.
The cause of this problem is usually one of 3 things – a failed starter motor, a bad connection between the battery and starter motor, or a blown fuse (if present) in line between the starter and the battery.
If you hear a clicking sound but the starter motor isn`t moving, the solenoid could be engaging but not receiving enough battery power. If there`s no sound, the starter solenoid is likely malfunctioning or you might have a dead car battery.
The battery can be fully charged but still not be able to start the vehicle if it is failing or has a dead cell. Other likely issues are the fuel pump, ignition switch, battery cables, starter, or a clogged fuel filter.
When you switch on the ignition key, a starter relay transmits small electric power to the starter solenoid, while the solenoid pulls a big current straight from the car batteries. This activates the solenoid, which sends electricity to the starter motor, which spins the flywheel.
Blown Fuse
If there has been a surge, a fuse that controls the fuel pump, the fuel injectors, or another component that`s vital for your car`s functioning, it may be the cause of your car`s failure to start.
Possible causes of a power failure could be either bad battery connections, a bad ignition switch, or a bad alternator. What you need to do is check your vehicle`s power sources.
One of the best ways to determine if a car fuse has blown is by using a test light. It should illuminate both ends of the fuse, and, if it doesn`t, it needs to be replaced. Sometimes, a blown fuse is caused by a damaged wire, motor, or other part.
It`s theoretically possible for both of them to fail at the same time, meaning within the same minute that you`re in the car starting it and the alternator just happened to fail at that same moment. In reality this is almost impossible.
The Likely Culprit: Starter
If you`re unable to start your vehicle, check and see if the headlights and dash lights come on. If they shine bright and clear, that means that the battery and alternator are likely not the cause of the problem. If they were, there wouldn`t be enough power to run the lights.
It`s theoretically possible for both of them to fail at the same time, meaning within the same minute that you`re in the car starting it and the alternator just happened to fail at that same moment. In reality this is almost impossible.
The Likely Culprit: Starter
If you`re unable to start your vehicle, check and see if the headlights and dash lights come on. If they shine bright and clear, that means that the battery and alternator are likely not the cause of the problem. If they were, there wouldn`t be enough power to run the lights.
When your engine cranks but won`t start or run, it could mean your engine is having trouble producing a spark, getting fuel, or creating compression. The most common causes are problems in the ignition (for example, a bad ignition coil) or fuel system (for example, a clogged fuel filter).
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
i have new battery new battery clamps and cables, new strter cilanoid and no power
ANSWER : Hello, thank you for writing in. If you are not able to get the starter to turn over or make any noise what so ever, then you need to start by checking the power supply to the starter solenoid. If it has a full 12 volt power supply available, then you are having either electrical or mechanical issues with the starter or the new solenoid. It may even need to be shimmed so that the gears are aligning correctly. If you do not have a full 12 volts available at the starter, then you need to trace down the electrical fault. You can start at the battery or the starter, and trace back until you find where the voltage from the battery drops off. There in lies your problem. For more help with this testing, contact our service department to schedule an appointment.
I got a new battery new alternator put in but my battery just gets drained I keep having to buy new batterys
ANSWER : This may be a sign of a failing voltage regulator or potentially a bad grounding problem causing a draw on the system. The voltage regulator is a unit that regulates the charging of the battery by the alternator. Often times this will result in the alternator allowing too much power to be delivered to the battery resulting in damaging wires and prematurely sometimes destroying the battery. In other cases it may result in the alternator not supplying enough power to the battery, resulting in undercharging the battery or not charging it at all. In either case, I would recommend having an expert from YourMechanic come to your location to diagnose your vehicle’s charging system.
We have a new battery, new alternator, new coil pk, new master fuse and the car still won’t hold power.
ANSWER : Hi there. The only thing that I could think possible is causing your problem is that something may not have been correctly installed while your son was completing this maintenance. However, if your engine was difficult to start before this service, it’s possible there are different components that are damaged that simply didn’t resolve the issue. The only way of knowing what is going on with your Trailblazer would be to have one of our mobile mechanics in your area come to your location and complete a car is hard to start inspection.
New battery and alternator but there is still no power in my 204 Xterra onve I turn it off.
ANSWER : Hi there. It sounds like you either have a defective alternator or there is another issue within the circuit for the charging system. I usually start by checking the output of the alternator. If it is not putting out the right voltage or amperage then it needs to be replaced. I would then check to see if the alternator is getting the correct signal to turn on. These would tell me if the output if correct. If the alternator is putting out the right voltage then the positive battery cable may have failed and may have high internal resistance. If you need to have this checked out, consider YourMechanic, as a certified mechanic can come to you to [diagnose why the vehicle is losing electrical power] https://www.yourmechanic.com/services/electric-problems-inspection
Hooked up battery cables to wrong car when jumping it
ANSWER : You may have damaged the car you were jumping from. I have seen alternator, ECM, various relays, and fuses damaged from improper jumping. You should monitor the problem to see if it continues to get worse. If so, have a local expert inspect the clicking noise and pinpoint any appropriate repairs that should be made.
My battery cables are to short to reach the battery can I just add some wire or do I have to replace the whole thing
ANSWER : Hello. I would recommend purchasing and installing the correct length cables to avoid any potential connection issues when adding additional battery cable wire. As you may know, there are different thicknesses of electrical wire required for different loads of electricity to pass through them. Additionally, any time there is wire spliced together like this, you run the risk of connectivity issues. I would recommend purchasing the correct length cables to install.
Has new alternator, new battery when started , motor dies when battery is disconnected…my mechanics are stumped on this
ANSWER : Hello.
If replacing those particular components did not correct the issue then the next thing I would look at is the vehicle’s voltage regulator. It appears that this engine’s electrical system is equipped with an external voltage regulator that functions, or malfunctions, independently of the alternator. The voltage regulator regulates power from the vehicle’s alternator, and can cause issues with the electrical system when it malfunctions. I would test it to see if it is functioning properly. It is a silver box that should be mounted somewhere in the engine bay, usually on a wheel well. A technician from YourMechanic can come to your home or office to replace your car’s voltage regulator if necessary.
Regards,
Eduardo
Is it possible to fry a new battery through faulty installation? 2009 Mazda 6
ANSWER : Hello – it is NOT likely your spouse damaged the battery during the swap. Far more often, the electrical energy in the battery would fry wiring or other electrical components if something is mis-connected. More than likely, the battery swap has caused a security mechanism to disallow starting. These security systems are designed to interpret "no electrical power, power re-established" as the car being stolen, so disable the ignition. I would recommend an electrical inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.
