Click Banner for Details on this Saabnet.com Classified
The banner above is an advertisment - if it asks you to download software, please ignore.
Site News -
7/1: Members: Log In to See Fewer Ads! |
5/28: SAAB Evolutions/TSN T-Shirts $14
[General |
Members |
C900 |
9000 |
NG900 & OG93 |
93 |
95 |
NG95 |
99 |
Sonett |
Vintage Models |
Clubs |
Other Cars |
FAQs |
Gifts |
Member Photo Galleries |
Member Directory |
Classifieds |
Manuals |
*Buddy Registry |
*Mileage Registry |
Polls |
What's New |
Raffle |
Photo of the Month |
Sponsors]
[Main 93 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Time and voltage...
Posted by Stephen Goldberger [Email] (more from Stephen Goldberger) on Tue, 6 Dec 2005 10:31:19
In Reply to: Headlight Bulbs Burn Out Frequently, Boyd, Tue, 6 Dec 2005 09:57:22
Members do not see ads below this line. - Help Keep This Site Online - Signup
You have correctly identified DRLs as one part of your headlight lamp life problem. The second part of the problem is the voltage. Lamps are rated at 12V, but your electrical system needs *at least* 12.6 volts to equal the open circuit potential of a lead-acid battery, and more than that if there's any hope of charging it. In years past, Saab electrical systems were a little on the low side, running around 13 1/2 volts at low temperatures.
That has proved to be a problem in hot climates, as the voltage from the alternator seems to drop with increasing temperature. I'd seen as low as 12 1/2 volts on my '91 9000's EDU and similarly on the "Escort" voltage read-out on my CE-CV. This tends to cause mystery dead-battery situations, and with todays low maintenance batteries it also shortens their life considerably.
By comparison, on the 9-5 I routinely see 14 1/2 volts on startup and never less than 13 1/2, no matter what the climate. Those extra volts do a number on bulb life, but it's pretty convenient to carry spare bulbs, pretty inexpensive, and a lot easier to install than a replacement battery.
posted by 24.28.3...
Posts in this Thread:
- Headlight Bulbs Burn Out Frequently, Boyd, Tue, 6 Dec 2005 09:57:22
- Horrible luck with Sylvania, better with Cooper, dchmiele1992, Thu, 8 Dec 2005 09:31:55
- Try what I did......, MI-Roger
, Wed, 7 Dec 2005 17:49:55 - Time and voltage..., Stephen Goldberger, Tue, 6 Dec 2005 10:31:19 <-- Viewing This Message
Members do not see ads below this line. - Help Keep This Site Online - Signup
Post a Followup
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
StateOfNine.com
![](/tsn/xyz/stateofninebutton.gif) |
SaabClub.com
![](/tsn/xyz/scnabutton.gif) |
Jak Stoll Performance
![](/tsn/xyz/jakstollbutton.gif) |
M Car Covers
![](/tsn/xyz/mcarcoversbutton.gif) |
Ad Available
![](/tsn/xyz/buttonavailable.gif) |
![](/tsn/images/tsnmap.gif)
Random Saabnet.com Member Gallery Photos (Click Image)
This is a moderated bulletin board - Posting is a privilege, not a right.
Unsolicited commercial postings are not allowed (no spam). Please, no For Sale or Wanted postings, SERIOUSLY.
Classifieds are to be listed in The Saab Network Classifieds pages.
This is a problem solving forum for over 250,000 Saab owners, so expect to see
problems discussed here even though our cars are generally very reliable. This is not an anything goes
type of forum. Saabnet.com has been a moderated forum since 1988. For usage guidelines, see the
Saabnet.com Mission and Purpose Page. Please remember that you are
not anonymous. Site Contact | Site Donations | Other Sites by SP -
Poverty2Prosperity.org | Run Club Menlo Park | ScreenBot
Site Members do not see red text instructions, bottom of the page anchor ads, or box ads.
Click here to see all
the Site Membership Benefits!