On-Site Diagnostics
Before you spend a dime on parts, you need to know what's actually wrong. We bring the dealer-level diagnostic tools to your equipment and give you a straight answer.
Half the money wasted on heavy equipment repair comes from guessing. We don't guess. We plug into the unit, pull the codes, test the systems, and tell you exactly what it needs.
What You Get
- Code reading & live data — dealer-level tools, not a generic scanner
- Root-cause diagnosis — we find why the code is there, not just what the code says
- A straight answer — what's wrong, what it'll take to fix, and what it'll cost, before any work starts
- No phantom repairs — if it's a $30 sensor, we tell you it's a $30 sensor
Why this matters: a dealer quoted one of our customers a full engine on a truck that just had a vacuum leak. A real diagnosis saved them thousands. That's the whole point of doing this right.
We Come To You
Diagnostics happen at your yard or job site, anywhere in the region. No towing a dead machine to a shop just to find out what's wrong with it.
Honest By Default
We come from the dealership side, so we know exactly how the runaround works — and we don't do it. You get the truth about your equipment, every time.
On-Site Diagnostics Questions
What can you diagnose in the field?
Engine, powertrain and hydraulic faults on heavy equipment and on-highway diesel trucks. We plug into the unit, read the codes, pull live data and test the systems right at your yard or job site — then tell you exactly what it needs before any work starts.
What diagnostic tools do you use?
Dealer-level diagnostic tools, not a generic scanner. We come from the dealership side with a Caterpillar background, so we read the codes the way the manufacturer intended and find the root cause, not just the symptom.
Which brands can you scan?
Caterpillar, Peterbilt, Kenworth, John Deere, Cummins, Detroit Diesel, Case IH, New Holland, Hino, Claas and Bobcat. That covers dozers, loaders, excavators, backhoes, motor graders, skid steers and on-highway diesel trucks.
Will you fix it on the spot?
Often, yes. Once we know what's wrong, a lot of repairs we handle right there at your site. If a job needs the shop, we'll tell you up front instead of stringing you along. Either way you get a straight answer on what's wrong, what it takes to fix, and what it'll cost before work begins.
What if the problem is intermittent?
Intermittent faults are where guessing wastes the most money. We pull stored and pending codes, watch live data and test the systems to track down what's actually causing it, instead of throwing parts at it. A real diagnosis is the whole point of doing this right.
Machine Down? Let's Get It Running.
Call now for fast mobile service across the Bay Area — or request a quote online.
📞 Call (925) 858-8630