RV Electrical & Battery Systems: Complete Guide
Master your RV electrical system from house batteries to shore power. Covers 12V DC, 120V AC, inverters, and charging.
Master your RV electrical system from house batteries to shore power. Covers 12V DC, 120V AC, inverters, and charging.
The ignition relay on a 1988 Ford E350 (Fleetwood Tioga base) is typically located in the engine bay fuse/relay box on the driver's side firewall, or in a separate relay box near the battery. Some models may have it mounted on the firewall or inner fender well.
Essential RV tire safety guide covering selection, age limits, maintenance, and when to replace.
Essential guide for Ford E-Series Class C motorhome chassis covering suspension, maintenance, and common issues.
Ford E350 dually rims do have different center hole sizes - front wheels typically have smaller center holes (108mm) while rear wheels have larger holes (143mm). You likely purchased a front wheel rim when you need a rear wheel rim for your spare.
On 1991 E350, battery ground typically terminates at engine block near starter or frame rail under battery. The fender tie is likely a routing point - continue tracing to find actual ground bolt. Clean to bare metal and use proper gauge cable for replacement.
Ford 7.3L Godzilla lifter failure at 70K documented in teardown. While concerning, appears isolated. Monitor for ticking noises, maintain oil changes, keep records for warranty.
Your 1988 E350 Class C with 460 EFI has spark, fuel pressure, and timing but won't start even with ether - this points to either a faulty Mass Air Flow sensor, clogged injectors, or ECM failure. The fact that ether doesn't help is the key diagnostic clue here.
Wireless air suspension issues - check sensor batteries first. Test for air leaks with soapy water. Verify compressor has power and operates.
V10 lower hose replacement straightforward with coolant drain. Use quality hose and new clamps. Bleed air by running with heater on high.
Surface rust on spare rim outer area is cosmetic. Bead seat condition matters most - if it holds air, it is likely serviceable. Have tire shop inspect when mounting new tire.
For misfire codes on cylinders 5 & 7 in your 2001 Ford E350 V-10, start with the most likely causes: spark plugs and ignition coils. Since you already have these parts, install them first as they're the cheapest fix and most common culprits.
Your Ford E350 Class C likely has a factory-installed charge isolator or solenoid limiting current to 20 amps to protect the original lead-acid batteries. This is normal behavior and adding a DC-DC charger was the right solution for lithium batteries.
Your 1991 E350's symptoms don't clearly indicate oil pump failure - the consistently low oil pressure combined with low operating temps suggests possible gauge issues or sending unit problems rather than pump failure.
Your 50-ohm reading indicates excessive resistance in the brake light circuit, likely caused by corroded connections, damaged wiring, or faulty bulbs. The circuit path runs from the brake switch through the turn signal switch to the rear lights.