1995 Coachmen Santara with Ford F53

[jgonzales11]

My alternator isn't sending power to the chassis battery--both are new. I'm thinking there's a blown fuse or issue with the fusible link.

I've only just begun, but thus far, I have not been able to find a diagram for this engine. If anyone knows where the fuse for the alternator is, please let me know.

Thanks!
Josh

[allbrandauto]

with no sensor lights in the dash that's where you problem is it excites the alt. threw the dash light bulb for charging system if none of your warning lights in the dash are out check all your fuses in fuse box 12 volts comes out of ign. switch to fuse box to dash

[MountainAir05]

Here is a F53 for the 1995 charging system.

http://www.irv2.com/forums/f23/94-f53-fuel-pump-change-230973.html

[MrWizard]

voltage sense / regulation issue

wrong Alternator ?

bad voltage regulator ?

if you read 12.2 at the alternator,
then the alternator is connected to the battery ?
the question is, why is it NOT turning on ?
this is voltage sense circuit, voltage regulator, bad engine computer module ?
what controls the voltage on a 95 FORD ?

[jgonzales11]

None of the sensor lights in the dash are working either... could this issue be related?

[MountainAir05]

jgonzales11 wrote:
Fuses all good as well (added to list above).

I deleted the steps due to I forgot that I build my battery except my AGM which I purchase.

[jgonzales11]

Fuses all good as well (added to list above).

[jgonzales11]

Yes, exactly.

It's a brand new battery--no water level issue. And brand new alternator. Alternator isn't charging the battery while driving so vehicle dies after a couple hours.

I've been checking all connecting wires and relays and solenoid, etc. All is working. Very confused.

[MountainAir05]

If its only 12.2 volts, then they are not charge. You should see 12.8 plus or so. Put a charger on the batteries and let it run 12 plus hours and check the water level before you do this.

[jgonzales11]

@MountainAir05

Yes, it's always the same, wherever I read it. It always reads the battery.

[MountainAir05]

type this in google. (ford F150 alternator charging system diagram) My book is for a 99 but its the same as a F150 truck same year, so location I can not help you on.

Is your battery voltage across the pos/neg the same at the alt. I am thinking not.

[jgonzales11]

@MountainAir05

Yes, it's 12 - 12.2, depending on where I test it.

It's also brand new and checks out perfect at the auto parts store.

The alternator is not getting the signal to excite it to send enough voltage. Trying to figure out why...

[jgonzales11]

@MrWizard

Yes, the engine battery.

Both the battery and alternator are brand new.

The alternator checks out at auto parts store but is only putting out 12-12.2 when installed. So I need to discover what's causing this...

Why is the alternator not sending enough power to the battery?

If I put a charger on my battery I can keep driving. If I don't, the vehicle ends up losing power after an hour or so.

[MountainAir05]

do you have voltage at the alternator (large wire)?

[MrWizard]

chassis aka the engine battery ?

is it charging the 'HOUSE' battery ? yes / no

IF yes, check your battery combiner relay or solid state diode base battery isolator (because the alternator is working)

IF no, might need a new alternator