The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Voltage drops @ idle -regulator dying??? - longish message.... 700

posted by  someone claiming to be Crazy Brick on  Sat Jan 3 16:47 CST 2004 [RELATED]

Hello Again!!

I own a 89-740 w/ a 100A alternator installed and just cleaned all the grounds and battery posts. Battery is less than a year old.

I have been encountering large voltage drops according to the dash gauge at -30 deg C weather. This happens when I am sitting at idle (drops into the red ~10.5V) and have all of my accessories on. (2X55w H4, 2 heated seats, R. Window defrost, rear fog lights, Brake lights, Blower motor at highest setting) The situation gets even worse when I turn on the hi beams(4x60w). (the blower motor, defog or hi-beams cause the largest V. fluctuation)

However, when I bring up the RPM's (pulling away from stop), the voltage spikes back up to the lower/middle section of the gauge and if I turn everything off, the voltage jumps closer to about 15V on the gauge.

Am I crazy for thinking that the alternator can keep up when the engine is @ 850rpm with all the stuff I have on (I would have thought that the engineers would have thought of this possibility for nuts like me). I ask since I wonder what would happen if I have the udgraded stereo and fog/driving lights on as well. Maybe the regulator is screwed? What has your experience been?

Thanks in advance,

Tim.






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.