Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

What can be the main causes of the engine warning light being on

Model: (Various brands) Various
Part: Warning light – error code

The video illustrates some very common causes: the first is the exhaust system in general. So the lambda probe or faulty oxygen sensor, the inefficient catalyst or FAP, the clogged or faulty EGR valve. Follow fuel or combustion problems, such as defective injectors or worn ignition coils or spark plugs. But there may also be problems with the electrical system such as dirty or faulty MAP or MAF sensors. And what about really serious mechanical problems like a slipping timing belt? Even the lack of just one tooth can cause the warning light to come on and serious operational problems; and problems with the vapor recirculation system can trigger the warning light. If it is yellow, it allows us to reach a mechanic for a diagnosis. If it is red, we must stop immediately and call a tow truck. Continuing could cause serious damage to the engine.

Posted on 4 October 2025 by ScegliAuto

Video tutorial

Related tutorials

The five main reasons why the engine light comes on
The five main reasons why the engine light comes on
(Various brands) Various In this video, we will see what could be the main reasons why the engine light comes on in our vehicle: the first could be a loose or damaged fuel ca…
Causes of Power Steering Malfunction
Causes of Power Steering Malfunction
(Various brands) Various In this video, we will look at the main causes of electric power steering malfunction: usually, in these cases, the red ESP warning light comes on, a…
If the ABS light is on, maybe the sensors are just dirty.
If the ABS light is on, maybe the sensors are just dirty.
(Various brands) Various In this video we see that sometimes we rush to change parts when it is sufficient to clean them and put them back in place. When the ABS light comes …

Other guides you may be interested in

    Frequently Asked Questions

    • Vari - What does the spring-shaped indicator light indicate? Read answer
    • Vari - What does error code 46 represent on the Yamaha Xmax? Read answer
    • Vari - What does the Ligier battery light indicate? Read answer
    • Vari - What does the check engine light on the Sym scooter mean? Read answer
    • Vari - What does the "CL 0-7A" error mean in the Kymco Agility scooter? Read answer
    • Vari - Why did the orange engine failure light come on in the Ligier JS50? Read answer
    • Vari - What does the error code 46 mean in the Yamaha T-MAX 500 scooter? Read answer
    • Vari - What does the abs light on the Yamaha Xmax 125 moped indicate? Read answer
    • Vari - What does the flashing red light on the Piaggio Beverly 300 instrument panel indicate? Read answer
    • Vari - What does the flashing ABS light on the Piaggio Liberty 125 mean? Read answer
    • Vari - What does the Piaggio Beverly 300 engine warning light indicate? Read answer
    • Vari - What does the Benelli TRK 502 engine warning light mean? Read answer
    • Vari - What does the coolant warning light mean? Read answer
    • Vari - What does the "Met in" light on Kymco scooters mean? Read answer
    • Vari - What does the Sym Symphony 125 engine warning light mean? Read answer
    • Vari - What do the red lights on a truck mean? Read answer
    • Vari - What does the disA light mean? Read answer

How to Check the Oil Level on a Jeep Renegade?

To check the oil level on a Jeep Renegade, you need to open the bonnet to access the components inside the engine bay: on the lower left side of the engine block, you will find the dipstick for checking the level. This should be pulled out and thoroughly cleaned with a cloth: once cleaned, reinsert it back into its tube and pull it out immediately after. This way, you can check that the oil mark is between the minimum and maximum levels; finally, you can place the dipstick back in its tube.

Watch the video!


by ScegliAuto

More videos