Fault Codes

Truck AC Not Blowing Cold? Common Causes and Fixes The fan is running, air is coming out of the vents, […]

Blower Fan Not Working in Your Truck? Here’s What to Check You hop in, hit the fan switch, and nothing

Truck Loses Power Going Uphill — What Causes It On flat ground the truck feels normal, but as soon as

Excessive Black Smoke From Exhaust — What It’s Telling You You notice more black smoke from the exhaust than usual

Coolant Level Keeps Dropping But You Can’t Find a Leak You keep topping off the coolant reservoir, but the level

Air Brakes Leaking Overnight — Why Your Tanks Lose Pressure You park for the night with a full air tank,

Air Ride Suspension Sagging on One Side — What’s Causing It You notice the truck (or trailer) is sitting noticeably

Truck Stuck in 5 MPH Derate (SCR/DEF Inducement) — What It Means Your truck has dropped to a crawl —

All Dash Warning Lights Came On at Once — What This Usually Means You’re driving along and suddenly the entire

DEF Gauge Stuck or Reading Wrong — Don’t Trust It Blindly Your DEF gauge shows a certain level — maybe