2018 sluggish acceleration

[lefty hack]

I have a 2018 expy platinum it’s been very sluggish during acceleration. It’s over 105 everyday in the desert which may be an issue. I just bought new NGK Iridium spark plugs. I haven’t installed them yet. Any other suggestions?

 

[Yupster Dog]

2018 expy platinum it’s been very sluggish during acceleration

How many miles on the truck?

 

[lefty hack]

How many miles on the truck?

75000

 

[JasonH]

Are you running premium or regular? If you put an Elm327 adapter on the OBD port you can see the temps of the air coming out of the intercooler and the octane adjustment factor.

 

[lefty hack]

Are you running premium or regular? If you put an Elm327 adapter on the OBD port you can see the temps of the air coming out of the intercooler and the octane adjustment factor.

Thank you for the suggestion. Do I need Forscan for that? I don’t have forscan so i think I’ll have to track the problem down another way.

 

[JasonH]

Thank you for the suggestion. Do I need Forscan for that? I don’t have forscan so i think I’ll have to track the problem down another way.

Use the Torque app on your phone.

 

[99WhiteC5Coupe]

I have a 2018 expy platinum it’s been very sluggish during acceleration. It’s over 105 everyday in the desert which may be an issue. I just bought new NGK Iridium spark plugs. I haven’t installed them yet. Any other suggestions?

Use OEM Motorcraft plugs.

 

[lefty hack]

Use OEM Motorcraft plugs.

I read somewhere else in my research to get NGK and get the coldest plugs they offer. Not sure now what is the best choice. Admittedly I’m a diy guy just researching this type of issue for the first time.

 

[Yupster Dog]

I read somewhere else in my research to get NGK and get the coldest plugs they offer. Not sure now what is the best choice. Admittedly I’m a diy guy just researching this type of issue for the first time.

check this out
https://www.expeditionforum.com/threads/best-plugs-in-gen4.47920/#post-441357

 

[lefty hack]

check this out
https://www.expeditionforum.com/threads/best-plugs-in-gen4.47920/#post-441357

In your opinion what steps should I take? Are the spark plugs a good place to start? I’m going to download the torque app and see if I can get anything from that. I know It’s bad bc my wife noticed and she not one to complain or notice issues with cars.