Hi,
I have a 1998 Caravan, 3.3 engine, 114K miles, and a few days ago,
went to start it, and seemed like no power at all. I heard relays
clicking under the dash, first from the left side under the dash, then
seemingly from the right side under the dash.
I tried starting it a couple more times, and it finally started, but
many of the the little "on indicator" lights on the panel for rear
wiper, washer, recirc, A/C were flashing, but seems those all still
worked. The rear defrost light was not flashing, and the rear defrost
wouldn't work. I went where I needed to go, about a 20 mile ride, and
didn't turn it off until I got home. I then shut the car off, then re-
started it, it turned over, but the same lights were flashing. (The
indicator lights are supposed to be steady yellow when something is
on).
I turned it off again for the night. Next morning it started right up
again, the "on indicator" lights weren't flashing and everything was
working normal. I took it for a ride, all OK, even rear defrost, and
then parked it again. Later that afternoon, I started it, and it
turned over after one stall, but along with the same indicator lights
flashing, I noticed an intermittant very rapid flashing in the
odometer reading.
I turned the car off, went to restart it, dead. The relays were
clicking real fast again. After several tries, it started, with the
flashing :on indicator" lights, but odometer OK. I drove it up to an
auto repair garage about a mile away. They said it may be my
alternator. They called me today and asked me to explain the symptoms
again, as they could not reproduce them, and I explained to them the
same as what I written above. The garage called me back a little later
and said it's starting fine for them and to come and pick it up.
When I got there, the mechanic explained that the alternator seems a
bit under par, but it started up every time, and as soon as you give
it some gas, it starts charging. So he didn't want to install a new
alternator yet at this point. The "on indicator" lights still
flashing, and he said that's some problem with the heater control
panel, but separate from the starting problem. As he said he can't
reproduce the problem, he advised me to take notes of any problem and
if there's trouble starting again, he'll take it from there. Then we
can look at the heater panel. He said everything else looked OK in
the system, battery was OK and wires and terminals were tight, etc.
I really think the starting problems, relays clicking, and "on
indicator" lights flashing stem from the same problem, as they both
started at exactly the same time, and the mechanic says coincidental.
Now today I just tried again, and it started, with the "on indicator"
lights flashing.
Any ideas what me and the mechanic should be looking for? Thanks much.
danny burstein - 06 Mar 2007 01:46 GMT
[ big snip ]
I can't tell you what the original cause of the
clicking, etc, is, but... the flashing lights
are common after a hiccupped reset of the a/c
console which puts it into a test mode.
The lights go back to normal after
fifteen (ugg) minutes, but... will then
go back to flash mode when you start up again.
the bit about alternator voltage being low
is something I've had pointed out to me
by numerous mechanics, but it seems that's
actually ok.
We've got a couple of super experts on this group
who may have more info.
But in the meantime, here's an earlier posting
on how to get the flshing lights back to normal:
From: "maxpower" <damnnickname@yahoo.com>
Newsgroups: alt.autos.dodge
Date: Wed, 2 Aug 2006 14:48:09 -0400
There are 2 tests to do, do both of these exactly as they read
Set Blower motor ON HIGH
Set Mode position to Panel
Open all A/C outlets
Set Temperature to Cold (Both slide pots if equipped)
Depress WASH and REAR WIPER button simultaneously for 5 Seconds (Until all
LED's light)
All LED's will turn on for 5 Seconds
Calibration Test is running when REAR WIPER and INTERMITTENT are alternately
flashing. Cooldown test is running if A/C and RECIRC are alternately
flashing.
Acceptable results is REAR WIPER LED is the only LED flashing. Push Rear
Wiper to exit.
After all tests have passed, Calibration Diagnostics and Cooldown can be run
separately.
COOLDOWN TEST ENTRY
Set Blower motor ON HIGH
Set Mode position to Panel
Open all A/C outlets
Set Temperature to Cold (Both slide pots if equipped)
Depress WASH and A/C simultaneously for 5 Seconds

Signature
_____________________________________________________
Knowledge may be power, but communications is the key
dannyb@panix.com
[to foil spammers, my address has been double rot-13 encoded]
dke3591 - 06 Mar 2007 03:00 GMT
> [ big snip ]
>
[quoted text clipped - 51 lines]
> dan...@panix.com
> [to foil spammers, my address has been double rot-13 encoded]
Thanks much Danny! I printed the instructions out, and started the van
(it started no problem twice already, hopefully that's taken care of),
had to do the first test twice, first time the A/C and recirc lights
started blinking together after doing so alternately and seemed not to
stop, ran the test again, then the second test, and all the lights are
now off and the rear defroster works again.
Earlier my neighbor told me to take the van to the dealer, which I was
planning to do tomorrow, and I just did what they would have done and
charged me for it. Or is it still a good idea to get it hooked to
their diagnostics machine? As, why did it start messing up to begin
with? Thanks again.