Diesel start batteries
My Fleetwood Discovery uses two 950 cca batteries. While checking the batteries current draw I noticed when I turn the ign. key on there is minimal current draw (o.5 dca) but after starting the engine...
Forum Discussion
DaveN wrote:
Putting my correct use of the meter aside and during further inspection, I heard air escaping near the front wheels but the rain kept me from getting underneath to discover the source. Could the amp draw be from the air compressor running - which doesn't start until after the engine is running? The Freightliner/Fleetwood interface electrical drawings are incomplete, erroneous, and downright confusing. Btw, the daytime temperatures here are in the 60's and 70's and the diesel batteries were fully charged before starting so the alternator output should minimize within a reasonable amount of time.
The air sound you hear may be the drain valve(s) on the air
tank(s) . They are located in close proximity to the front wheels . I recently pulled the lanyards to drain my tanks and one of the valves didn't want to close completely. After jiggling the valve and filling and draining the tank a few times, it did finally seat and close.
