behrensy

I purchased a used 2018 XL STX with the 2.7L EB engine 5/1/19. I added a S&B CAI to it just over a week ago and on Monday 5/27 I got a CEL (no other modifications have been done to the truck other than aesthetic stuff). Went to AutoZone and had any codes read and their computer showed that no codes were tripped. Truck has around 22,000 miles as mentioned in the title.

Going to the dealership ASAP, but does anyone have any idea what might be the issue?

Thank you,

idrive

iTrader: (3)

Have you considered removing your new CAI and installing the factory CAI and see if the light is still on?

sholxgt

I would definitely remove the CAI and put it back to stock before going to the dealer!

behrensy

Do you think that the CAI could void a warranty?

djfllmn

iTrader: (1)

depending what it did it could, but i agree with others, change back to stock before taking truck in

ShirBlackspots

Modifications do not void a warranty due to the Magnum Moss Warranty Act
https://www.roadandtrack.com/car-cul...your-warranty/

sholxgt

They most certainly do if it's related to the failure. Lets say he has an oiled filter and they find the IAT sensor has failed due to contamination, not covered under warranty.

Dealers have also known to stretch that a bit. Let's say the code is for running lean. They could say the intake is allowing more airflow causing it to run lean.

I've been modding cars that were under warranty since the '80's. Simple solution is to take it into the dealer stock. Remove aftermarket parts and then take it in. If you take it in with modifications, be prepared to fight and possibly not win the battle.

Other option, that I've done multiple times, is just accept responsibility if it truly was your actions that damaged the vehicle and pay for the repair. Not fun, but I've done it.

tvsjr

First, it's the Magnuson-Moss Warranty Act. Second, Ford can absolutely deny warranty coverage if your aftermarket add-on was the proximate cause of the failure. Let me explain to you how this works. Let's say you take your truck in with a CAI or other performance modifications. The dealer takes note of this and mentions it to Ford. Some big-time engineer at Ford says "wait just a minute, that mod could have caused the vehicle to operate outside its design specifications - warranty denied!" Your dealer passes the message along. You now have a truck that's sitting in the shop, likely in pieces... you're welcome to fight it, but Ford is a multi-billion-dollar corporation and you're an individual. Yeah, you might win. How long will it take, and how long can you afford to be without your vehicle?

Bottom line - if you play, expect to pay. Maybe Ford will cover an issue, but don't be surprised if they don't.

ShirBlackspots

Ok, I suppose then you should wait until the warranty is up, or the truck is paid off to start putting modifications on it.

sholxgt

Or, put it back to stock before you take it in for service. Generally speaking, the dealer isn't against the consumer. They just have protocols to follow and if you throw something in their face, they have to follow those protocols.