If Your Diesel check light is on call R and M Diesel Services.
discuss the reason your warning light is on with you or Schedule an appointment.
We do have
emergency road side service.
a short drive from down town Little Rock, close to I-30 and I-530.
The amber check engine warning lamp will illuminate when a problem exists, but in most cases the vehicle can be safely driven.
The vehicle should be serviced as soon as possible to correct the problem, but the situation is not
necessarily an emergency.
On the Big Rigs, If the Diesel Exhaust Fluid (DEF) lamp comes on, the Diesel Exhaust Fluid (DEF) tank is almost empty or the soot level in the DPF is at full capacity.
At this level warning,
Generation cannot be performed and engine power will be cut back
A lamp will also illuminate when a DPF
Re-Generation or addition of Diesel Exhaust Fluid is required.
Another function of the check engine lamp is to warn the operator of an impending idle shutdown.
When the idle shutdown timer is 30 seconds from expiring, the engine ECM begins flashing the check engine warning lamp once per second.
When the timer expires, the ECM will turn off the warning lamp and shut down the engine.
If a Red Stop Engine Light Comes on - pull safely to the side
shut motor of and call for assistance
High Soot Level lamp
Low DEF fluid level lamp.