wow
No one mentioned that you might have a drain on the battery when the engine
is off.
Maybe a light under the hood, brake light switch, glove box light, interior
light, relay, or something else that might possibly cause a drain when the
ign. is off. Might even be a defective alternator that drains the battery.
:-(

Simple test is to remove one battery lead after you've had a good drive and
see if it starts the next day after you reconnect the lead.
There are other tests you can perform such as an amperage drain, or even
connect a volt meter, between battery post and removed lead. Remember that
a door open or the hood open (activating one of the lights) might affect
your test results.
Oh and very short drives don't allow the battery to charge back up well!
;-)

JMHO
later,
dave AKA vwdoc1

"B Pilon" <bblancha@rncan.gc.ca> wrote in message
news:d3gjbr$qp412@nrn2b.NRCan.gc.ca...
> Hi,
>
> I have a 87 Comanche 4X4 with the inline 6, 270 000Km (162 000mi) no air
> conditioning and a lot of rust :).
>
>
>
> The truck didn't want to start Sunday morning. When turning the ignition
the
> starter made the tic tic tic tic tic tic sound. Tried almost 15 times with
> the same result. I hooked the power pack on the battery and the truck
> started just fine. Went shopping, and I had to hook the power pack again
to
> restart it. When I arrived home I cleaned the battery terminal connections
> (but they were fine). The battery was 8 months old, the starter (rebuild)
is
> 7 months old, the alternator is 1.5 month old and the ignition switch is
> less than 3 months old. So because I found corrosion near one of the
battery
> cap, I went to Costco and had the battery replaced for a new one. The
truck
> started just fine so I was very happy.
>
> Had no problem Sunday evening and Monday during the day.
>
> Yesterday evening, the same problem happened again so I needed the power
> pack to start the vehicle. And since yesterday, it's the only way to
start
> it.
>
> I checked the voltage of the battery posts before starting (±12.45 V) and
> after starting (with the power pack removed) (±14.45 V).

 

wow
No one mentioned that you might have a drain on the battery when the engine
is off.
Maybe a light under the hood, brake light switch, glove box light, interior
light, relay, or something else that might possibly cause a drain when the
ign. is off. Might even be a defective alternator that drains the battery.
:-(

Simple test is to remove one battery lead after you've had a good drive and
see if it starts the next day after you reconnect the lead.
There are other tests you can perform such as an amperage drain, or even
connect a volt meter, between battery post and removed lead. Remember that
a door open or the hood open (activating one of the lights) might affect
your test results.
Oh and very short drives don't allow the battery to charge back up well!
;-)

JMHO
later,
dave AKA vwdoc1

"B Pilon" <bblancha@rncan.gc.ca> wrote in message
news:d3gjbr$qp412@nrn2b.NRCan.gc.ca...
> Hi,
>
> I have a 87 Comanche 4X4 with the inline 6, 270 000Km (162 000mi) no air
> conditioning and a lot of rust :).
>
>
>
> The truck didn't want to start Sunday morning. When turning the ignition
the
> starter made the tic tic tic tic tic tic sound. Tried almost 15 times with
> the same result. I hooked the power pack on the battery and the truck
> started just fine. Went shopping, and I had to hook the power pack again
to
> restart it. When I arrived home I cleaned the battery terminal connections
> (but they were fine). The battery was 8 months old, the starter (rebuild)
is
> 7 months old, the alternator is 1.5 month old and the ignition switch is
> less than 3 months old. So because I found corrosion near one of the
battery
> cap, I went to Costco and had the battery replaced for a new one. The
truck
> started just fine so I was very happy.
>
> Had no problem Sunday evening and Monday during the day.
>
> Yesterday evening, the same problem happened again so I needed the power
> pack to start the vehicle. And since yesterday, it's the only way to
start
> it.
>
> I checked the voltage of the battery posts before starting (±12.45 V) and
> after starting (with the power pack removed) (±14.45 V).

 

wow
No one mentioned that you might have a drain on the battery when the engine
is off.
Maybe a light under the hood, brake light switch, glove box light, interior
light, relay, or something else that might possibly cause a drain when the
ign. is off. Might even be a defective alternator that drains the battery.
:-(

Simple test is to remove one battery lead after you've had a good drive and
see if it starts the next day after you reconnect the lead.
There are other tests you can perform such as an amperage drain, or even
connect a volt meter, between battery post and removed lead. Remember that
a door open or the hood open (activating one of the lights) might affect
your test results.
Oh and very short drives don't allow the battery to charge back up well!
;-)

JMHO
later,
dave AKA vwdoc1

"B Pilon" <bblancha@rncan.gc.ca> wrote in message
news:d3gjbr$qp412@nrn2b.NRCan.gc.ca...
> Hi,
>
> I have a 87 Comanche 4X4 with the inline 6, 270 000Km (162 000mi) no air
> conditioning and a lot of rust :).
>
>
>
> The truck didn't want to start Sunday morning. When turning the ignition
the
> starter made the tic tic tic tic tic tic sound. Tried almost 15 times with
> the same result. I hooked the power pack on the battery and the truck
> started just fine. Went shopping, and I had to hook the power pack again
to
> restart it. When I arrived home I cleaned the battery terminal connections
> (but they were fine). The battery was 8 months old, the starter (rebuild)
is
> 7 months old, the alternator is 1.5 month old and the ignition switch is
> less than 3 months old. So because I found corrosion near one of the
battery
> cap, I went to Costco and had the battery replaced for a new one. The
truck
> started just fine so I was very happy.
>
> Had no problem Sunday evening and Monday during the day.
>
> Yesterday evening, the same problem happened again so I needed the power
> pack to start the vehicle. And since yesterday, it's the only way to
start
> it.
>
> I checked the voltage of the battery posts before starting (±12.45 V) and
> after starting (with the power pack removed) (±14.45 V).