11-05-2018, 10:46 AM
Unit 639 2002 model
Hello, Mike and I need guidance.
Engine recently started puffing black smoke.
Tech using diagnostic equipment recommended a new engine computer.
New computer made smoke worse.
Now the DDECU4 indicates a Hard Code 53
Any ideas?
Mike is at the shop that sold him the new computer but they don’t have answers.
Thank you!
JK
Hello, Mike and I need guidance.
Engine recently started puffing black smoke.
Tech using diagnostic equipment recommended a new engine computer.
New computer made smoke worse.
Now the DDECU4 indicates a Hard Code 53
Any ideas?
Mike is at the shop that sold him the new computer but they don’t have answers.
Thank you!
JK
Kristi & Jeff King
Bentonville, Arkansas
#744 2005 45’ Newell Coach
ZF Suspension/Rear Axle Steering
CAT-13 ACERT KCB Engine 525HP 1642 ftlbs Torque Cat Compound Turbocharger System Producing 49 psi
Allison HD4000MH Transmission with PTO drive for Second Hydraulic Pump.