A wrench light pops up on the Ford Escape dashboard when the onboard computer system detects a problem with the powertrain. It can result from low battery voltage, low boost, faulty oil cooler, among others. When you see the wrench light, you can find the specific reason or take the vehicle to a mechanic for scanning.
We will discuss all the possible causes of the orange wrench light on the Ford Escape in detail. Read on to find your answers if you are worried about that light on your dashboard.
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What does the wrench light mean on Ford Escape vehicles?
In simple terms, a wrench light on Ford Escape indicates a problem with the powertrain. If the ECU detects an issue with the powertrain system, it will illuminate the dashboard with that wrench sign.
Many reasons can cause the wrench light to pop up on your Ford Escape dashboard. On the list, we have low battery voltage, electronic throttle issue, faulty oil cooler, powertrain sensor problem, among others. Get more details on these issues in the next season.
Why does the wrench light come on?
Ford Escape drivers have reported many causes of wrench lights appearing on their dashboards. According to their views and expert analysis, the following are the common causes of dashboard light to show up:
In some cases, the wrench light will be on when the battery voltage is low or dead. The computer system cannot function very well at low voltages, which can mess up the wrench.
The battery problem is sometimes not just the low battery or damaged battery but also any fault that tampers with its terminal voltage. Try to restore the correct terminal voltage by checking for possible corrosion on the alligator clamps and battery terminals. Clean everything and tighten any loose clamps.
There can be advanced problems in the battery charging system, such as faulty alternators or bad battery cells. In such cases, you need a battery and alternator tester. Take your vehicle to a mechanic if you do not have such tools.
A low boost in Ford Escape can also trigger the wrench light to come on. Low boost pressure can result from broken hoses, damaged shaft bearings, leaking seals, build-up of contaminants in the turbine or compressor areas, damaged diesel particle filters, among others.
Low boost can significantly reduce power from the engine. You might have the gas pedal pressed down, but you cannot achieve the desired speed. It usually triggers a fail-safe operation, where your vehicle is restricted to low power, just enough to help you pull over.
Abnormal temperature differences between block & cylinder head
The most common causes of temperature differences between block and cylinder heads are due to the cooling system or abnormal combustion in the cylinders. When one of those two causes happens, the engine parts will begin to expand and cause more head gasket damage and other related issues. In worst cases, the engine can crack, leading to costly repairs.
Sensors communicate with the ECU, meaning the temperature difference will illuminate the wrench sign on the dashboard. In this case, you should take your vehicle to the mechanic for a detailed diagnosis the moment you detect it.
Faulty oil cooler
Engine oil serves two purposes: cooling and lubricating the engine. Sensors constantly monitor oil status to detect any temperature changes. The information goes to the driver by turning on the wrench light. The likely cause of the problem is a faulty oil cooler.
Another reason for wrench light coming on is when an oil change is due. If you drive a Ford Escape, then you should change the oil after 3-6 months. Without an oil change during that period time, your vehicle will remind you by lighting up the wrench sign. Rest assure that it is the cheapest fix of all other possible causes of wrench light on Ford Escape.
Electronic throttle body problem
Electronic throttling problem is a sure cause of wrench light coming on. You might have noticed this light when you try to crank your car. It indicates an underlying problem that requires proper diagnosis.
Also, your car might stall on the highway, and a wrench light pops up on the dashboard. The likely cause is the throttling problem. If the vehicle can still move, then drive it straight to the nearest mechanic. If your car cannot start, which is usually the case, call tow services to pull it to a garage for examination.
Powertrain sensor problem
Powertrain sensors communicate with your vehicle’s powertrain control module, the PCM. PCM manages the engine, transmission, and other subsystems based on the data received from the sensors. If there is a problem with the sensor, the function of PCM is crippled. When this is detected, it will turn on the wrench light on the dashboard.
Sometimes it is not the sensor that causes the problem but a wiring issue. A loose wire, damaged wired, or accidentally disconnected wire can trigger a wrench light on Ford Escape. Fortunately, it is easy to detect by using a scanner since the error cord is available on the ECU. You should visiting a mechanic to fix the problem within 1-2 hours or less.
Is it safe to drive with the light on?
The wrench light on the dashboard is an indication of a problem. Even if it does not seem serious, you should not continue driving your vehicle. In many cases, it will stall and fail to start if the damage is severe. If you are lucky, your Ford Escape will automatically switch to the Limp Mode to prevent further damage to the system. It is called limit power. Regardless of how hard you step on the gas pedal, you will only get between 5-10 MPH out of your vehicle.
It is in rare cases when you can continue driving your car to a mechanic. Your car might function normally in cases of oil change warnings. Others are likely to render the car immobile, and you should not strain it because you can cause more damages to your vehicle.
What to do when the light shows up on Ford Escape
The next course of action depends on the cause of the wrench light on the Ford Escape. The first thing to do when you are on the road is to turn on the emergency flashers. Therefore, it informs other drivers that your vehicle has a mechanical problem. If the car can move, pull over, and turn off all the electronic systems, including radio, A/C, and any add-ons.
A quick fix that can get you out of the Limp Mode is to switch the engine off then on after a few minutes. If it works, drive to a garage for diagnosing and fixing the problem. It does not mean your vehicle is in good condition because you successfully find your way out of the Limp Mode.
Whatever the cause of the wrench light on Ford escape is, the most feasible thing to do is take it to an authorized mechanic. The mechanic will diagnose the problem and fix your car, usually in a few hours.
The wrench light on Ford Escape indicates a powertrain issue and other problems within the car. If you see it on your dashboard, book an appointment with a mechanic as soon as possible, even if the vehicle still performs just fine. Straining your vehicle with that light on can cause further damage, leading to costly repairs. For your safety and other road users, let a qualified mechanic check it.