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The iridium tipped OEM spark plugs in a 4th generation (2018, 2019, 2020 and probably also the 2021, 2022 & 2023 model years) Ford Expedition SUV with the EcoBoost 3.5 liter twin-turbo V6 engine can last up to 100,000 miles but they should be checked and possibly changed before that mileage. Check out my DIY tutorial for the procedure (with the OEM and compatible replacement aftermarket part numbers) by clicking on the text link or thumbnail image below.

2018-2020 Ford Expedition EcoBoost 3.5L V6 Engine Spark Plugs Replacement Guide

The best way to keep your fourth generation (2018, 2019, 2020 and probably also the 2021, 2022 and 2023 model years) Ford Expedition SUV running reliably is to regularly change the motor oil and replace the oil filter on the EcoBoost 3.5 liter twin-turbo V6 engine. Check out my DIY tutorial for the procedure (with the compatible replacement filter part numbers) by clicking on the text link or thumbnail image below.

2018-2020 Ford Expedition EcoBoost 3.5L V6 Engine Oil Change Guide

If you’ve been having trouble starting the EcoBoost 3.5L turbocharged V6 engine in your fourth generation (2018, 2019, 2020 and probably also the 2021, 2022 & 2023) Ford Expedition SUV and the original 12 volt car battery is a few years old, you probably need to replace it. Check out my DIY tutorial for the procedure (with the OEM group size and the compatible replacement part numbers) by clicking on the text link or thumbnail image below.

2018-2020 Ford Expedition 12V Automotive Battery Replacement Guide

If you’d like to upgrade the OEM door speakers in your fourth generation (2018, 2019, 2020 and probably also the 2021, 2022 & 2023) Ford Expedition SUV, you’ll first have to take off the plastic interior door panels. Take a look at my DIY tutorial for removing the door panels (with the compatible aftermarket speaker sizes) by clicking on the text link or thumbnail image below.

2018-2020 Ford Expedition Interior Door Panels Removal Guide

If you need to change a burnt out low beam, high beam or front turn signal light bulb in the headlight housings of your fourth generation (2018, 2019, 2020 and probably also the 2021, 2022 and 2023 model years) Ford Expedition, take a look at my DIY instructions for the procedure (with the compatible replacement part numbers) by clicking on the text link or thumbnail image below.

2018-2020 Ford Expedition Headlight Bulbs Replacement Guide

The best place to start when troubleshooting any electrical problem with your fourth generation (2018, 2019, 2020 and probably also the 2021, 2022 and 2023 model years) Ford Expedition SUV is to check for a blown electrical fuse or a faulty relay in either the engine bay or the interior passenger compartment electrical panels. Check out my DIY instructions for the procedure (with the compatible replacement fuse types) by clicking on the text link or thumbnail picture below.

2018-2020 Ford Expedition Electrical Fuse Replacement Guide

The engine air filter element for the EcoBoost 3.5 liter V6 engine in a fourth generation (2018, 2019, 2020 and probably also the 2021, 2022 and 2023) Ford Expedition SUV should be cleaned at every oil change and replaced at least every 30,000 miles. Check out my DIY tutorial for the procedure (with the compatible replacement part numbers) by clicking on the text link or thumbnail image below.

2018-2020 Ford Expedition EcoBoost 3.5L V6 Engine Air Filter Replacement Guide

If you need to change a burnt out fog light bulb in the front bumper cover of your fourth generation (2018, 2019 and 2020) Ford Expedition, check out my DIY tutorial for the procedure (with the compatible replacement part number) by clicking on the text link or thumbnail image below.

2018-2020 Ford Expedition Fog Light Bulbs Replacement Guide

If you need to change a burnt out reverse light bulb (also known as the “back-up” light) in the tail light housings of your 4th generation (2018, 2019, 2020 and probably also the 2021, 2022 and 2023 model years), check out my DIY tutorial for the procedure (with the compatible replacement part number) by clicking on the text link or thumbnail image below.

2018-2020 Ford Expedition Reverse Tail Light Bulbs Replacement Guide

If you need to change a burnt out license plate light bulb in the tailgate door of your 4th generation (2018, 2019 and 2020) Ford Expedition SUV (or upgrade them both to brighter LED bulbs), check out my DIY tutorial for the procedure (with the compatible replacement part number) by clicking on the text link or thumbnail image below.

2018, 2019 & 2020 Ford Expedition License Plate Light Bulbs Replacement Guide