Strange dash warning light
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Cross-Country
Joined: Jun 2019
Posts: 70
Likes: 2
Strange dash warning light
2002 7.3- solid amber light upper right on the instrument cluster came on solid and I don’t know what it is. The symbol looks very much like a diesel particulate light. Can anyone shed light on this?
Cargo Master
Joined: Apr 2012
Posts: 2,029
Likes: 531
From: Bottom Of Pikes Peak
I've seen someone else ask this recently.
Quick Google search will provide answers that say it's for the "check air filter indicator" or filter restriction warning light
need to check your filter and/ or reset the filter minder
Quick Google search will provide answers that say it's for the "check air filter indicator" or filter restriction warning light
need to check your filter and/ or reset the filter minder
Last edited by INFRNL; Apr 13, 2026 at 01:24 AM.
Butt-Head
Joined: Apr 2004
Posts: 9,456
Likes: 2,938
From: Reed Point, MT
Air filter restriction light. Started in 2002.
There is a sensor on the air box lid next to the outlet to the turbo.
To reset it, push the button on the top of the gauge. Spring pressure will release it.
Lastly, figure out why there is a restriction.
There is a sensor on the air box lid next to the outlet to the turbo.
To reset it, push the button on the top of the gauge. Spring pressure will release it.
Lastly, figure out why there is a restriction.
Thread Starter
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Cross-Country
Joined: Jun 2019
Posts: 70
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Thanks everybody. I googled warning lights and it came back DPF and regen. Obviously the O2 doesn’t have that and I didn’t connect the dots. I’ve been in Mexico for six months and this place is dusty. Time to give the filter a good shake.
Cargo Master
Joined: Apr 2012
Posts: 2,029
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From: Bottom Of Pikes Peak
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