ECM fault code 168-1 indicates low battery voltage to the Engine Control Module, causing shutdown and electrical failures. This comprehensive guide covers diagnosis, repair steps, and prevention for diesel RV owners experiencing this critical issue.
Compare scan tools for Cummins 6.7 diesel engines in RVs. Covers professional and DIY options for diagnostics, codes, and DPF regeneration.
Master your RV electrical system from house batteries to shore power. Covers 12V DC, 120V AC, inverters, and charging.
Guide to RV battery disconnect switches. Covers when to use, what loses power, and best practices for storage and daily use.
P068A indicates an ECM/PCM Power Relay Control Circuit malfunction in your Ford V10. This typically involves a faulty power relay, damaged wiring, or ECM issues causing engine stalling and starting problems.
Even with disconnect switches engaged, phantom loads and battery self-discharge can drain RV batteries during storage. Installing battery maintainers, using master disconnect switches, and addressing phantom loads will solve this issue.
The Ford F53 V10 comes with a 195°F thermostat from the factory, but many RV owners successfully run 180°F thermostats for better cooling under heavy loads. The 5.4L and 6.8L V10 use different thermostat housings, so parts aren't interchangeable.
V10 surging with air/fuel codes often has cheap fix - vacuum leak, intake gasket, or exhaust leak. Do smoke test or spray test before replacing more expensive parts.
Yes, high-output alternators can be installed on your F53/Triton V10, but you'll need to upgrade wiring and possibly the serpentine belt system. The Tucson unit you found is a solid choice for your large inverter battery bank needs.
On the Ford V-10 engine, the temperature sending unit is located on the front of the engine block, typically on the driver's side near the thermostat housing. It's a brass or plastic sensor with a single wire connector.
Speedometer stopping at 39 mph with working cruise indicates a stepper motor failure in the cluster. The motor can be replaced for $15-30 with soldering, or send cluster for professional rebuild.
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.
Multiple engine failures on a 2016 Winnebago Vista suggest deeper issues that need investigation. Consider independent diesel shops, remanufactured engines, and thorough diagnosis before committing to a third expensive replacement.
Everything RV owners need to know about the Ford 6.8L Triton V10 engine including common problems and solutions.
You can add a tachometer to your 2003 Itasca Spirit's Ford E-450 chassis by installing an aftermarket tach that connects to the ignition coil negative terminal or ECM. Autometer and VDO make excellent options that mount in a 2-1/16" gauge pod.