FIELD DIAGNOSIS
Mobile truck, tire and trailer service for commercial units. Start with the service needed and the unit location; availability and the safe on-site scope are confirmed before a technician travels.
01 / SERVICE MENU
This service menu uses the TruckDown categories customers see, with GBP diagnostic language where it helps. Availability, parts, tire sizes, inspection scope, fueling, refrigeration and safe on-site conditions are confirmed on the call.
Rig Rescue does not advertise towing, welding, engine rebuilds, transmission rebuilds or emissions deletes, bypasses or tuning.
SERVICE PAGES · PROBLEM-LED ANSWERS
These focused pages use the same service language found in the TruckDown menu and Google Business Profile: the problem, what is assessed, what can be done on site, and what is outside the approved scope.
01 / THE FAULT INDEX
Real links, real text. Nothing here needs a hover, a script or a diagram to be readable — pick the symptom and read the field report.
02 / FIELD REPORTS
01
“Clicks once and dies.” · “Cranks slow.” · “Dead by morning.”
Checked: voltage and connections, load and draw, starter response, alternator output.
Typically repaired at the roadside — boost first if that moves you, then the actual cause.
02
“Won't hold a charge.” · “New battery, same problem.”
Checked: battery condition, terminals and grounds, starter draw, charging output.
Typically repaired at the roadside — batteries, starters and alternators changed at the truck.
03
“No lights on one side.” · “Blows the same fuse.” · “Gauges went dark.”
Checked: harness and grounds, fuses and relays, lighting circuits, power feeds.
Typically repaired at the roadside — tractor and trailer circuits traced on scene.
04
“Hissing at the tanks.” · “Won't build air.” · “Drops overnight.”
Checked: lines and fittings, valves, leak isolation, build-up rate.
Typically repaired at the roadside — the leak is isolated and the system proven before you roll.
05
“Brakes dragging.” · “Chamber blew.” · “Won't release.”
Checked: chambers and pots, slack and adjustment, air to the axle, what locked and why.
Roadside where feasible — heavier brake work is shop-scale, carried out where the truck is parked when the job allows.
06
“Temp climbing on grades.” · “Coolant on the ground.”
Checked: leak source, hoses and clamps, coolant level and condition, fan operation.
Often repaired at the roadside — it depends what is leaking, and you get that answer at the truck.
07
“Counting down to 5 MPH.” · “DEF light won't clear.”
Checked: codes read on scene, DEF system assessment, DPF and EGR service.
Assessed on scene — emissions service only. Emissions deletes are illegal and are never performed.
08
“No trailer lights.” · “Reefer threw a code.” · “No air to the box.”
Checked: trailer circuits and plug, lights, air to trailer, reefer faults.
Typically repaired at the roadside — the box gets fixed where it sits, tractor present or not.
09
“Blew a steer.” · “Hub's hot.” · “Oil on the rim.”
Checked: tire condition, wheel seals, hub temperature and play.
Tires at the roadside — seals and hubs where conditions allow, with a straight answer either way.
10
“Gelled up overnight.” · “Dies like it's starving.” · “Won't light off in the cold.”
Checked: gelling and filters, fuel supply, cold-start behaviour.
Typically repaired at the roadside — worked in the cold it happens in.
03 / ROADSIDE REPAIR CAPABILITY
MOVES ON THE SHOULDER
NEEDS MORE THAN A SHOULDER
Some failures want a bay, parts on order, or heavier iron. That verdict comes from a mechanic at the truck — not from a guess over the phone — and you hear it straight, with a path forward. Rig Rescue does not tow; when a job needs a hook, we say so and refer you honestly.
THE VERDICT COMES FROM THE TRUCK, NOT THE PHONE — AND YOU HEAR IT ONCE, STRAIGHT, WITH A PATH FORWARD.
04 / THE HONEST BOUNDARY
Knowing the limit before you call is worth more than a long capability list. These jobs go to someone else, and you will be told so plainly at the truck.
NOT OFFERED
Rig Rescue does not tow. When a unit has to move rather than be repaired where it sits, you get told that straight, and pointed at a tow honestly. Emissions work is service only — deletes are illegal and are never performed.