My wipers will go up once when I turn on but stay in the up position and make a humming noise.I have to force the wipers down by h
When I turn my wipers on they only go up but not back down,I have to force them down by hand.They make a humming noise when I turn them on.
Experienced mechanics share their insights in answering this question :
Hi there. Most of the time, the issue you’re describing is caused by a malfunction inside the windshield wiper motor. Sometimes it’s caused by the wiper arm being stripped on the motor strut itself. The best way to correctly diagnose the problem is have a professional mobile mechanic complete a wipers are not working inspection.
How to Identify and Fix Common car Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced mechanics :
If your wiper motor runs but the wipers don`t move it`s most likely a mechanical problem, so you should start by examining the wiper assembly. This might be a disconnected wiper motor link arm, a jammed transmission, or locked gear.
The most likely cause is a burnt-out windshield wiper fuse in your vehicle`s fuse box. Locate the fuse and replace it with a functioning one, and your wipers should work again. If the problem isn`t the fuse, it could be your windshield wiper`s transmission. Take your vehicle to a mechanic to have it inspected.
This is a great question—there are several reasons why your windshield wipers might get stuck in the upright position, but the most common is improper locking of the wiper transmission due to a bent metal tab.
If the problem is not in the switch, then there could be a bad relay in the circuit (if so equipped), loose fuse, bad ground, and/or the motor could have a bad (intermittent) connection on the armature. Also, of course, you could have a combination of these electrical faults. It`s easy to diagnose.
You can manually move the wiper arms to the service position when you switch the ignition off.
When adjusting the windscreen wipers, you must twist the wiper blades over the wiper arm. Be very careful when doing this because the material is flexible and can easily break if too much force is applied or it`s twisted too much. Therefore, always adjust the angle in small steps only.
Before the wiper motor goes bad, you will probably experience a blown wiper fuse, which is intentional. The fuse is designed to be the circuits weak spot, which protects the wiper motor. Essentially, if your vehicle`s wiper motor is being overloaded, the fuse will blow to ensure the motor does not become damaged.
The wiper relay is unique in that it`s found inside the wiper control handle which often has selector switches giving drivers multiple settings for their windshields. Over a period of time, this relay can be damaged – which will impact the operation of the windshield wiper system and in some cases, render it useless.
The intermittent DC relay is used for controlling the windshield wiper`s operation.
INTERMITTENT FAILS
Check the wiring, connectors and switch contacts. If OK, suspect a faulty intermittent control box. If the wipers stop halfway, check wiring to the self-parking circuit from the switch and control box.
Car wiper motors are quite powerful. They draw a considerable amount of current and contain a set of gears to multiply torque. Typically rated 12V or 24V, wiper motors use around 5A when running freely and higher when under load. Wiper motor power or torque is usually indicated in N/M².
Clear Clogged Windshield Washer Nozzles
Clear the clogged windshield washer nozzle with a pin, then use compressed air to blow the debris backward through the hose. If you hear the pump going but don`t get fluid, you probably have clogged windshield washer nozzles.
If you hear a grinding noise as your blades move across your windshield, it`s likely that the motor is making this noise. This will happen when the blade arm is attached too tightly to the wiper blade, causing the gears in the wiper blade motor to grind. If this is not checked, it can cause the wiper motor to burn out.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
My wipers will go up once when I turn on but stay in the up position and make a humming noise.I have to force the wipers down by h
ANSWER : Hi there. Most of the time, the issue you’re describing is caused by a malfunction inside the windshield wiper motor. Sometimes it’s caused by the wiper arm being stripped on the motor strut itself. The best way to correctly diagnose the problem is have a professional mobile mechanic complete a wipers are not working inspection.
Have a 2008 Hyundai Sante Fe and it starts when the key is in position II instead of III and makes a click sound when turning off
ANSWER : Hi There,
It sounds like you may have a faulty ignition switch that may be causing the ignition to send power to the starter inadvertently rather than kill the power to the ignition like it is supposed to when turning it off. When you turn the key to the start position, the starter relay sends power to the starter which then engages the flywheel and turns the engine over. When the engine is running the flywheel is already spinning at a very fast pace. When the starter relay inadvertently directs power to the starter when the motor is running, this causes the starter gear to engage the flywheel which is already spinning at a very high RPM, thus producing a grinding type sound. I would suggest having a professional from YourMechanic come to your location to diagnose and inspect the vehicle.
It sounds like you may have a faulty ignition switch that may be causing the ignition to send power to the starter inadvertently rather than kill the power to the ignition like it is supposed to when turning it off. When you turn the key to the start position, the starter relay sends power to the starter which then engages the flywheel and turns the engine over. When the engine is running the flywheel is already spinning at a very fast pace. When the starter relay inadvertently directs power to the starter when the motor is running, this causes the starter gear to engage the flywheel which is already spinning at a very high RPM, thus producing a grinding type sound. I would suggest having a professional from YourMechanic come to your location to diagnose and inspect the vehicle.
on a 1970 Lincoln mark iii Interior lights wont turn on and warning lights are very dim and doorlock button makes buzzer go on
ANSWER : Hi there. Although the electrical systems on older vehicles tend to be much simpler in design, in many cases, issues like you’ve described can be very tricky to trace. It could possibly be something as simple as an expose wire creating an electrical short or a faulty relay that is not completing an electrical circuit. I wish we can help you further, but the best advice I can offer is to have one of our mobile mechanics come to your location and complete an electrical problems inspection.
Engine turned off but inside of car still on, now engine won’t turn back on.
ANSWER : Hi there. The symptoms you’re describing with your boyfriend’s 2002 Grand Cherokee appear to be related to a broken or worn out ignition switch or relay. The ignition switch on the inside of the steering column is attached to multiple electronic connections that send signals to a relay box; which in turn, sends the signal to the individual components. The issue could be related to the ignition switch, the relay, or any of the components in between. If you want to have the fault pinpointed in person, I would have this starting issue inspected by a trained professional to ensure that the correct repair is made.
car won’t start.
ANSWER : A possibility is a faulty ignition switch. If the switch opens after the car starts, the engine will shut off. But, that is just a possibility and a diagnostic would have to be performed to rule that in or out. Be sure you have a fully charged battery that passes a load test. Starters motors can display intermittent operation if they are faulty. With a fully charged battery, if the starter motor does not run that signifies an electrical problem in the starter circuit (includes the ignition switch) or a problem with the starter motor itself. If there is power to the starter motor and yet it doesn’t run, the starter is condemned and replaced. Alternatively, if there is no power to the starter, or there is a big voltage drop anywhere on the circuit to the starter, then the circuit has to be traced until the fault in the circuit is found. Notably, faults can include high resistances, due to corrosion, wire strand breaks, or loose terminals, which can only be diagnosed using a voltage drop test. Regardless of what the underlying cause of the no start condition is, if you desire that a certified mechanic resolve this promptly, please simply request a no start diagnostic and the responding mechanic will get it diagnosed and repaired for you. Please let us know if you have further concerns or questions as we are always here to help you.
Car turns off. First it would turn off in reverse and when I would stop at a red light or slow down to make a turn.
ANSWER : Hi there. For the reverse stalling condition, check the Idle Air Control Valve and see if its plugged up. If a IAC valve is plugged up, an engine will stall out when going into gear and could cause issues when slowing down. For the steering and stalling issue, check the power steering fluid and see if its low. If the fluid is full, then the pressure control valve in the power steering is not releasing causing the pump to load up making the engine stall. Try turning the vehicle with the engine running and at a stopped location.
If the engine stalls out, then its the pressure control valve, but if it does not stall out, then there could be an issue with the transmission.
If you need further assistance with your engine stalling, then seek out a professional, such as one from Your Mechanic, to help you.
Car turns off
ANSWER : The problem sounds like your alternator has stopped charging the car. This will cause the car to have weak electronics like what you are experiencing. Have the charging system double checked, and if verified as the fault, replace the bad alternator.
Why is my vehicle turning off when i drive it or when i first try turn it on in the mornings it turns off itself
ANSWER : Hello there. There could be multiple mechanical components or sensors that might be faulty that cause this issue on your Expedition. Initially, you should have a professional mechanic download any existing error codes and inspect a few possible components including the O2, crank sensor, mass air flow sensor or the idle air control actuator. It might be a good idea for you to contact one of our local professional mechanics to complete an engine shuts off while driving inspection; which will allow them to pinpoint the source of your engine shutting off problems.
