Keeping your diesel fleet trucks on the road longer.

diesel repair logo image

Keeping your fuel system maintained will prevent premature parts failure and poor running conditions. Here at Craig Johnson Automotive we have tips on the important aspects of diesel fuel system maintenance, to keep your diesel fleet trucks running smoothly - longer.

Air. Air in the system causes all kinds of issues, from hard starting, poor running conditions, or an engine that won’t run at all. If too much air gets in the system, the fuel pump won’t be able to deliver fuel, and the engine will stall, die, or fail to start.  Air enters the system via a leak or a bad seal - a deteriorated o-ring, worn component, faulty hose, or otherwise. Here we inspect your lines and connections to ensure they are in good shape and track down any leaks we notice air in the system.

Continue Reading

Electrical systems issues - what are the symptoms, and what can you do about it?

mechanic working on auto electrical system

Every year, vehicle electrical systems get a little more complicated. These days, many cars on the road contain up to a mile of wiring, running throughout every corner of the vehicle. With all those wires, there’s bound to be an issue at some point; Craig Johnson Automotive in Rowland Heights, CA is here to help you recognize a potential electrical issue, and know what to do about it.

Continue Reading

Make your tires go the distance and follow these tips

Tire being balanced in auto shop

Once your new tires are mounted and balanced, you’ll want to keep them in good shape. To get the most out of your tires, inspect them regularly and keep up with maintenance - the difference between a tire that lasts 100k miles, and one that lasts 10k, mostly comes down to how well it’s been taken care of.

Continue Reading

Should You be Running an Auxiliary Oil Cooler?

oil cooler on a vehicle

If you’re running a truck (or trucks) without an auxiliary oil cooler, it may be something you want to consider. Here’s some information on auxiliary oil coolers, what they are, and why they’re a great upgrade, from Craig Johnson Automotive in Rowland Heights, CA.

Continue Reading

Safe Mode - is your transmission shot?

parts of a transmission

Most modern transmissions have a “limp mode” or “safe mode” that they may default to if an error is detected. What does it mean if your transmission has entered safe mode, and where do you go from there? Craig Johnson Automotive in Rowland Heights, CA has the answers you need.

Continue Reading

  • Jasper Pref
  • Acdelco
  • Asa
  • ASCCA
  • ASE
  • Bumper to Bumber
  • Cummins Diesel
  • Duramax Diesel
  • Fleet Services
  • Motorcraft Parts
  • Ford Power Stroke Diesel
  • RV Repair
  • Tires
  • Towing
  • Valvoline

Craig Johnson Automotive

19140 San Jose Ave
Rowland Heights, CA 91748

location small (626) 810-2281
Email the Shop

SHOP HOURS

Weekdays:   8:00 AM - 5:00 PM
Saturdays: By Appointment

Make An Appointment

TRANSLATE LANGUAGE

CMR Easy News Program  |   LIS

WEBSITE CHANGES

JASPER Program, Content, Page Layout, and CMR EasyNews Programming © by JASPERWebsites.com, a CMR, Inc program

Click here to view Privacy policy & Accessibility Statement