Results for "starter relay"

Engine Hard 4-6 hours 171 👍 0

Ford F53 7.5L RV Won't Start: Fuel Pump Relay Voltage Drop Fix

Woke up to my 1996 Ford F53 7.5L motorhome eating through my patience and wallet with this no-start issue that keeps coming back. It cranks strong but absolutely will not start, and I've been chasing this problem for weeks now. The engine ran fine for about 3-4 minutes one day, then just died and hasn't started since.

I've already done quite a bit of diagnostic work:
- Replaced PCM and distributor
- Fuel pump works when powered directly
- Battery is fully charged
- Checked fuses and relays
- PCM relay voltage drops from 12.2V to 9.3V with key on
- Fuel pump relay only shows 3.3V at pin 86 (should be 12V)
- Inertia switch tested at 1.7V at connector
- ANL 178 fusible link fluctuates between 0.3-0.6V

The engine will only start with starter fluid when the SPOUT is removed. I'm getting only 5.5V at the fuel pump connector.

Has anyone dealt with this specific issue on an F53 chassis? I really need to get this RV back on the road and I'm running out of ideas! …more

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Electrical Medium 30-90 min 140 👍 0

No 12 Volt Power in RV: Complete Troubleshooting Guide

Turned the key and nothing works on 12 volt — no lights, no water pump, no slides. Batteries show 12.6 volts on the multimeter so they're fully charged. House batteries seem fine but zero power is getting to any of the 12V circuits inside the coach. …more

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Electrical Medium 30-60 minutes 98 👍 0

RV Emergency Start Switch Not Working: Complete Troubleshooting & Repair Guide

Every time the temperature hits 85°F or higher, my RV's emergency start switch completely fails — works perfectly in cooler weather, but now my chassis battery is dead while house batteries stay charged. When I press the emergency start button, absolutely nothing happens - no sounds, no response at all.

I'm worried there might be something wrong with the system or that I'm not using it correctly. Should I be hearing some kind of click or sound when I press the button? Could there be blown fuses I need to check? I'm hesitant to keep trying without knowing if I might cause damage to the electrical system. What's the proper troubleshooting process to safely figure out why this emergency start feature isn't connecting my house batteries to help start the engine? …more

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Best RV Generators

4.6 (18,900 reviews)

Electrical Medium 30-60 min 92 👍 0

Dead House Batteries on 50 Amp Shore Power: Troubleshooting Guide

Turned on my 2024 Entegra Reatta XL this morning to find the house batteries completely dead again despite being plugged into 50 amp shore power—third time this season and I'm done guessing. New batteries, good connections, power was working fine for days then died completely. Voltmeter shows 12.69V on chassis, 4.7V on house batteries at the BIM.

What's the proper troubleshooting sequence for house batteries not charging on shore power? Need to check converter, breakers, and connections but want to do this systematically. …more

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Electrical Easy 30 minutes 86 👍 0

1988 Fleetwood Tioga Ford E350 Ignition Relay Location Guide

Last weekend I bought my first RV, a '88 Fleetwood Tioga Arrow (Ford E350 chassis, 460 V8), and I'm completely clueless why it won't start. I've already swapped out the starter solenoid on the fender, but now I'm being told there's also an ignition relay that could be the culprit.

Problem is, I can't for the life of me find this thing! I've been crawling around the engine bay for what feels like hours. Anyone know the typical spots where Ford hid the ignition relay on these E350s? Really don't want to start randomly pulling relays until I find the right one... …more

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Engine Medium 1-2 hours 81 👍 0

1990 Tioga E-350 Won't Start: Complete DIY Troubleshooting Guide

Turned the key in our "new" 1990 Fleetwood Tioga E-350 and my wife immediately said "that's not starting, honey" — now I'm completely stumped. The engine turns over like it wants to start but just won't fire up. I've already replaced the fuel pump inside the tank, but I'm wondering if another pump might need replacement. I don't want to just start throwing parts at it. What's the best systematic approach to figure out why my Tioga won't start? Are there common failure points I should check first on these older E-350 based motorhomes? …more

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Engine Medium 1 hour 80 👍 0

Ford 7.3 Godzilla Starter Relay Location: Fix Stuck Starter Issues in

Finally found the starter relay for my 2022 RV's Ford 7.3 Godzilla engine that keeps staying engaged after startup — but will replacing it actually solve this? This has occurred multiple times and appears to be triggering crankshaft sensor errors, putting the vehicle into limp mode.

Diagnostics point to a faulty starter relay or incomplete grounding in the circuit. Need to locate the starter relay in the Ford 7.3 Godzilla to test and replace if necessary. Where exactly is this relay positioned, and what are the typical failure patterns for this specific issue on the 2022 model year? …more

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Electrical Medium 2-3 hours 77 👍 0

No Power to Ignition Switch on 1998 Fleetwood Bounder: Ford Chassis Electrical Troubleshooting Guide

My 1998 Fleetwood Bounder's dashboard is sitting here completely dead with zero power reaching the ignition switch at all. The ignition switch isn't getting any power from the battery, even though I've already checked all the fuses and relays and they seem fine.

I'm still pretty new to RV electrical systems and not sure where to look next. Should I be checking somewhere between the battery and the ignition switch? I don't want to start poking around randomly and make things worse. What are the most likely culprits when you have this kind of power issue? …more

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Electrical Medium 1-2 hours research 73 👍 0

1995 Ford F53 RV Chassis Wiring Diagram: Complete Guide & Sources

Between my multimeter reading 10.2V at the battery and the manual saying my 1995 Winnebago Vectra F53 chassis should show 12.6V, I'm confused why the starter still won't crank. Nothing like being stranded at a campground to remind you that you're living in a 30-year-old house on wheels!

I'm trying to track down proper wiring diagrams to troubleshoot this mess. Should I be looking for Ford F53 chassis diagrams, Winnebago coach wiring, or both? And while I'm at it, any suggestions on what to check first for starter issues? My mechanical skills are about as reliable as my RV's electrical system right now! …more

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Electrical Medium 30 min 70 👍 0

Ford V10 RV No Crank Intermittent Starting Issue Solutions

Opened the hood expecting to find the same starter solenoid issue that plagued my old gas motorhome — but my 2020 Fleetwood Bounder 33C with the Ford V10 keeps doing it. For the past few months, I've been dealing with this really frustrating intermittent starting problem where I turn the key and get dash lights but absolutely no cranking from the starter.

The weird thing is it's not consistent - sometimes it starts right up, other times I'll sit there for 20-30 minutes trying and then suddenly it'll fire right up like nothing was wrong. I've already replaced the ignition switch and even the starter/solenoid thinking that would fix it, but I'm still having the same issue. Battery tests good at 13.4 volts and it doesn't matter if I'm plugged into shore power or running the generator.

I'm kind of at a loss here and don't want to keep throwing parts at it. Could this be something with heat affecting an electrical component since it seems to work after sitting for a while? What should I be looking at next? …more

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Electrical Medium 2-3 hours 68 👍 0

Ford Triton V10 Parasitic Draw Fix: Complete Diagnosis Guide for RV Owners

Between storage seasons and spring startup, my 2006 Southwind with Ford Triton V10 keeps developing the same parasitic draw that kills my battery. After sitting a few days, battery drops to 11.3V. Main symptom: when I turn key off and remove it, power still flows to dash gauges. Needles flicker and I hear buzzing for several seconds after key removal.

Is this a failed ignition switch or could it be stuck relays? What's the proper way to test and confirm the cause before replacing parts? …more

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Best RV Batteries

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Engine Easy 30 minutes inspection 66 👍 0

Ford E450 RV Engine Bay Parts Guide - OEM vs RV Manufacturer Components

Last week I noticed my 2024 Ford E450 RV chassis developed this weird electrical issue and I'm worried it's dangerous with kids constantly playing around the rig. A power cable was touching the metal bracket holding the transmission dipstick tube, and when a water drop fell on the right top bolt (which shows some discoloration), a spark occurred. This raised safety concerns about potential electrical interference or risk. Should I apply insulation to prevent future sparking, and is this a normal occurrence in the engine bay? Would like to understand if this is a Ford-installed or RV manufacturer component to guide my troubleshooting. …more

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Engine Medium 30-60 minutes 62 👍 0

Diesel Pusher Fuel Filter Wiring: Identifying Unknown Cables and Connections for RV Troubleshooting

Between my wife spotting a mystery cable dangling near our 1997 Newmar Mountain Air's fuel filter and my growing obsession with figuring out what it connects to, I'm losing sleep. The wire seems to have come disconnected from somewhere and I'm not sure where it's supposed to go.

I've been having trouble getting the engine to start lately and I'm wondering if this mystery cable could be related to my starting problems. The wire looks like it might be important but I can't figure out what it connects to or what its purpose might be.

Could someone help me identify what type of cable this might be and whether reconnecting it could solve my starting issues? I'd really appreciate any guidance on how to trace where it should connect. …more

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