At idle and while driving.
Cummins diesel check engine light.
Your cummins diesel engine is being constantly monitored by a various sensors and circuits.
This will require a visit to a cummins service center.
The check engine or service engine soon light can illuminate for various reasons some are immediate concerns but most are emissions related and will not affect performance or cause damage.
2015 3500 cummins check engine light discussion in tech info started by danielchapman8 mar 21 2019.
The low voltage lightning bolt light came on once today for a.
As soon as i drove it off the lot the check engine light came on.
Can be coupled with de rate.
From def lights to hest lights it can all be a little confusing.
May light up in addition to other lamps.
It seems like there is an interruption in the throttle some times.
I took it back to the dealer and they said they replaced the def fluid injector.
Over the years emission controls have become more and more complex and the ubiquitous and infamous check engine light coming on has become one of the most common vehicular problems today.
I tried to read the codes with my autocal and nothing is showing up.
So my check engine light came on last night driving back from hunting.
Flashing red stop engine lamp.
Now that diesels have these dreaded warning lamps too nearly everyone can join in the fun and frustration of chasing down problems brought to light by.
Diesel exhaust fluid def lamp indicates when def level in tank is low.
The light was off but 6 days later it came.
Check engine lamp check fluid levels gages sounds and smells make a plan to get service.
Mar 21 2019 at 8 32 pm 1.
Flashing check engine lamp will flash for 30 seconds at key on if maintenance is due.
This video is about cummins indicator lamps and what they mean i use amsoil synthetic lubri.