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How to Fix RV Rear Brake Lights and Hazards Not Working - Common Grounds & Connections
Electrical Medium 1-2 hours 93 👍

How to Fix RV Rear Brake Lights and Hazards Not Working - Common Grounds & Connections

Spent months planning our cross-country trip leaving next week and my RV's rear brake lights and hazards just completely stopped working. My 1998 National Tropical (on a '97 Ford F53 chassis with the trusty 460 V8) has decided to get creative with its lighting situation. The rear brake lights and 4-way hazards have completely given up the ghost - nothing, nada, zero response from the back end. But plot twist: the turn signals work just fine back there, and everything up front (brake lights, hazards, turns) is working perfectly.

I'm scratching my head because if it was a fuse issue, wouldn't ALL the lights be affected? The fact that some work and others don't has me thinking it's something more specific. Any ideas where I should start poking around to solve this electrical mystery? …more
Texas Class B Test with Unregistered 2011 Thomas School Bus
General Medium 30-45 minutes to resolve 71 👍

Texas Class B Test with Unregistered 2011 Thomas School Bus

Halfway through prepping for my Texas Class B road test tomorrow, my neighbor insists my unregistered 2011 Thomas Built school bus is fine, the DMV demands current registration, but online converters claim they passed with expired tags.

I really want to use my bus for the test since I know it well and it's got air brakes - definitely want that endorsement! The bus is fully insured and I've got the commercial one-way permit it was driven here on, but I can't get anyone at DPS on the phone to confirm if they'll even let me take the test. Anyone know if Texas DPS will accept a vehicle that's not properly registered yet, or am I setting myself up for a headache? …more
How to Find Emergency Diesel RV Repair Shops During Breakdown
Engine Easy Research during breakdown 71 👍

How to Find Emergency Diesel RV Repair Shops During Breakdown

Nobody believes my wife when she tells people our diesel pusher started billowing black smoke right when that fan belt snapped on Interstate 10, 40 miles from Houston. I know truckers deal with this all the time, so there's gotta be some go-to resources or apps they use to locate repair shops when they break down on the road. What's the smartest approach to quickly find diesel mechanics who can handle an RV when you're stranded? I'm talking about real-world tools and methods that actually work when you're in a jam, like I was where I could barely find anyone close to work on my vehicle. …more
How to Fix LED Tail Light Problems on Workhorse RV Chassis - Complete
Electrical Medium 2-3 hours 69 👍

How to Fix LED Tail Light Problems on Workhorse RV Chassis - Complete

Last week my Workhorse chassis LED tail light upgrade started flickering and the RV tech wants $800 for a complete wiring harness replacement. The original discolored lights were getting hard to see, so the LED upgrade seemed like a smart move, but now I have three main problems that are driving me crazy.

First, my turn signal indicators are flashing extremely slowly - almost like they're struggling to work properly. Second, when I turn on my running lights or tail lights, the indicators stop flashing altogether and just stay on solid, which obviously defeats the purpose of having turn signals. Third, and perhaps most concerning, when I press the brake pedal, my main tail/brake lights actually turn OFF instead of getting brighter, leaving only the center high-mounted brake light working.

I made sure to match the wiring exactly - the stop/tail lights have 3 wires each, and the reverse/indicator lights have 2 wires each, just like the original incandescent bulbs. The connections seem solid and I followed the same wire routing. I'm wondering if this is a common issue with LED conversions on Workhorse chassis, and what specific components or modifications I need to make this work properly. What's the complete solution to fix these LED tail light problems? …more
How to Fix 2001 Ford E350 RV Cruise Control Brake Light Circuit Problems
Electrical Medium 2-3 hours 66 👍

How to Fix 2001 Ford E350 RV Cruise Control Brake Light Circuit Problems

Every time I mention my 2001 Ford E350 RV's cruise control issues with brake light circuit resistance, I feel stupid asking, but why does this keep happening? According to the service manual, I should be reading less than 20 ohms between pin 4 and ground, but my multimeter shows 50 ohms consistently.

The cruise control system monitors the brake light circuit through the light filaments to detect brake application. With this higher-than-spec resistance reading, the cruise control will not engage properly. I've already replaced the brake pedal switch and master cylinder switch, but the resistance remains at 50 ohms when measured at the pedal switch.

What typically causes this excessive resistance in the brake light circuit, and what is the complete wiring path from the brake switch to the rear lights that I need to inspect? The brake lights themselves function normally, but this out-of-spec resistance is preventing cruise control operation. …more
2001 Chieftain F53 Turn Signals and 4-Ways Not Working Fix
Electrical Medium 1-2 hours 63 👍

2001 Chieftain F53 Turn Signals and 4-Ways Not Working Fix

Walked out to check our 2001 Chieftain F53 after my wife mentioned the turn signals weren't working, and sure enough both signals and hazards are completely dead. My 2001 Chieftain on an F53 chassis just lost both turn signals and the 4-way hazards at the same time. I checked the fuses and they seem okay, but I'm not sure where to look next.

Since both systems failed together, I'm wondering if there's a common cause I should be looking for? I know there are separate relays for left and right turn signals, but it seems weird that both would go bad simultaneously. Could this be related to the emergency flasher relay or maybe a wiring problem somewhere?

Any advice on where to focus my troubleshooting would be really appreciated - I don't want to just start randomly replacing parts! …more
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