hi all, Had this light come up two weeks ago. Went into the shop and changed dosage valve. The mechanic also questioned the pump but after .
getting the SCR performance Low alarm on my dash followed by ‘Engine will derate to 8Kph’ . The power cuts in half. Have taken truck to two .
Volvo – Derate temporary fix for SCR low performance – IMPORTANT and useful. youtube.com. Volvo Vnl Semi Truck stranded 5 mph derate limit temp fix scr low .
The number one cause of a 5 MPH derate in a Volvo truck is the SCR/DEF system not operating properly. The SCR/DEF system was .
When it is really cold outside, this could just be the truck needing to warm more to do the needed regen to get the SCR fault to go away.
Scr performance low keeps coming on and have to do a parked regen … It did not do it for like 3500 miles now it is doing it again 2013 mack cxu613 … Mechanic’s Assistant: Anything else you want the truck mechanic to know .
of SCR Performance Low, Engine in Derate, 5 MPH limit in 150 Min. … I wasn’t willing to push my luck and decided to stop at the TA truck .
Make sure your DEF tank has SCR Performance low, engine will derate IN.. | TruckersReport.com Trucking Forum | #1 CDL Truck Driver Message Board Both .