J. Marcoz Emergency Vehicle, Inc.

09/18/2026

09/15/2026

Aerialscope jack re-seal job

09/11/2026

8:46 AM
American Airlines Flight 11 struck the North Tower of the World Trade Center.
At this moment, we take a step back from our day to pause, remember, and honor the lives forever changed on September 11, 2001.

09/10/2026

Nee Kensington #1 light tower rebuild.

09/07/2026

Working on Labor day for 5 or 6 hours. CJ's wet sanding and buffing a panel while I'm installing the treadplate laminate on the roof. The work never ends.

09/04/2026

Bunch of new LEDs ready for installation on a Smeal.

08/27/2026

81 E1 in for some diagnostics and repair.
Had a databus communication error that was causing issues with several modules on the CAN network not being able to 'talk' to one another. Spent hours with the oscilloscope taking measurements throughout the CANBUS network and all modules to eventually trace the issue to the Allison transmission TCM (computer). This is what good, solid diagnostics is all about- tracing the problem down correctly to find the actual failed component the first time and not just loading up the parts canon and changing a bunch of expensive parts till it finally works again like many out there do by changing parts that were actually just fine. Proper diagnosis save you $$$. Every time.

08/22/2026

Jay repairing and replacing some damaged scene light weldments on a ladder tip. Repair will be inspected via magnaflux method when the 3rd party ladder testing is performed in a few weeks. Once checked, repair area will be epoxy primed and top coated. Of course, you have to wear the proper PPE like a short sleeve T-shirt when welding.

08/21/2026

Hecla Engine 88-3 in this week for some diagnostics. New engine ECM, manifold pressure sensor, charge air cooler boot, coolant level sensor and a window track repair. Updated the Detroit software at the same time and gave it the 550HP sauce since the laptop was already connected😉