Results 1 to 9 of 9

electrical problems?

This is a discussion on electrical problems? within the General Help forums, part of the LSx Technical Help Section category; I've heard this is common in gm cars, but nearly everytime i start my car, the trip resets and the ...

  1. #1
    Rice Hungry GottaHaveLS1's Avatar
    Join Date
    Oct 2005
    Location
    Connecticut
    Age
    29
    Posts
    1,316

    Black
    1999 Trans Am M6

    electrical problems?

    I've heard this is common in gm cars, but nearly everytime i start my car, the trip resets and the speedo & tac needles shoot almost all the way up. Now i noticed that my front and rear blinker (on either side) as well as the little blinker that i see next to the speedo, is flashing weird. my friend first noticed it when he was driving behind me. It will flash like normal the first time but then "double flash" the second time. I'm not sure what going on and i know the batteries fully charged. any ideas?

  2. #2
    Senior Member
    Join Date
    Jul 2005
    Location
    Jacksonville, FL
    Posts
    2,725
    Don't know what's going on with the blinkers - but the trip reset/gauge sweep on start up happens on the '99 cars when battery voltage is low or the connections are loose. I'd have it load tested.

  3. #3
    Rice Hungry GottaHaveLS1's Avatar
    Join Date
    Oct 2005
    Location
    Connecticut
    Age
    29
    Posts
    1,316

    Black
    1999 Trans Am M6

    Quote Originally Posted by 2001NBMZ28 View Post
    Don't know what's going on with the blinkers - but the trip reset/gauge sweep on start up happens on the '99 cars when battery voltage is low or the connections are loose. I'd have it load tested.
    what does load tested mean?

    I've also heard that problems like these could be a sign that the alternator is going. that doesn't sound good....
    1999 Trans Am M6
    SLP Short Throw, Lid and CAI, BMR STB and SFC, UMI PHB, Pacesetter LT's and ORY, Magnaflow Catback, DMH 3" E-Cutout, LS7 Clutch, Motive 4.10, 160 T-Stat, MSD, !AIR, !EGR, 17x9.5 Chrome C6's wrapped in Hankook 275/40/17

    Tuned at Mongillo Motors in New Haven, CT

  4. #4
    Senior Member
    Join Date
    Jul 2005
    Location
    Jacksonville, FL
    Posts
    2,725
    Bring the battery to some place like auto zone - they'll put it on a tester for free, only takes a couple minutes. If that's not it at least you eliminated the battery as being the problem. Here's the TSB on the trip reset, doesn't mention the gauge sweep but usually happens at the same time: http://home.earthlink.net/~cetera/pics/aug99tsb.jpg

  5. #5
    Retired NOT tired SteveC's Avatar
    Join Date
    Jul 2005
    Location
    Poway, Ca
    Posts
    1,126

    SOM
    2001 Z28 (Sara)

    I agree, the battery is going south.

    SteveC

  6. #6
    Member
    Join Date
    Oct 2006
    Location
    Oklahoma City
    Posts
    282

    00 LS1, WS6, V8 Gremlin
    96 & 98 GTPs, 64 'Cuda

    It can be either but if the car is cranking fine chances are the alternator is going out.

    What happens here folks is the alternator will put out plenty to charge the battery but it's a noisy DC signal - battery doesn't care but the car's electonics are affected. This is caused by the internal regulator starting to fail.

    They can test for this at most parts stores.

    Ensure you've got the battery and connections eliminated first as they're the easiest to eliminate.

  7. #7
    Veteran 0rion's Avatar
    Join Date
    Aug 2005
    Location
    ohio
    Posts
    22,468

    98 Formula
    06 duramax

    Quote Originally Posted by Steve Crowe View Post
    It can be either but if the car is cranking fine chances are the alternator is going out.

    What happens here folks is the alternator will put out plenty to charge the battery but it's a noisy DC signal - battery doesn't care but the car's electonics are affected. This is caused by the internal regulator starting to fail.

    They can test for this at most parts stores.

    Ensure you've got the battery and connections eliminated first as they're the easiest to eliminate.
    solid advice right there. I know steve doesn't agree with the method but if I suspect an alternator the first thing I do is put a voltmeter across the battery terminals while the car is running. steady 14.4 volts= good less voltage or fluctuation voltage = bad.

  8. #8
    the chief oldguy's Avatar
    Join Date
    Jul 2006
    Location
    SC
    Age
    53
    Posts
    49

    White
    1998 TA Convertible

    Cool

    Seen this before and it was corroded terminals once and loose terminals another time.

  9. #9
    Member
    Join Date
    Oct 2006
    Location
    Oklahoma City
    Posts
    282

    00 LS1, WS6, V8 Gremlin
    96 & 98 GTPs, 64 'Cuda

    Quote Originally Posted by 0rion View Post
    solid advice right there. I know steve doesn't agree with the method but if I suspect an alternator the first thing I do is put a voltmeter across the battery terminals while the car is running. steady 14.4 volts= good less voltage or fluctuation voltage = bad.
    14.4 is not the definitve test, even a failing alternator can put that out into a good battery as a good battery will limit at or near that voltage.

    Rotten day folks, crack in one of my Enkei wheels. $200 if they fix, $100 if they farm it out. Having no MIG/TIG here I'll take it to a friend who will flux the crack and, if possible, weld it for $50

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. electrical problems?
    By GottaHaveLS1 in forum Stereo and Electronics
    Replies: 2
    Last Post: 05-07-2007, 02:02 PM
  2. Three transmissions later = electrical problems ???
    By t-topsonline in forum Automatic Transmission
    Replies: 7
    Last Post: 02-21-2007, 11:13 PM
  3. Cold Start problems?
    By SteveCZ28 in forum General Help
    Replies: 3
    Last Post: 12-16-2006, 06:54 AM
  4. Electrical Problems Might Be Killing My Tranny???
    By t-topsonline in forum Camaro / SS
    Replies: 0
    Last Post: 07-24-2006, 02:55 PM
  5. Site problems or my problems?
    By oneBADDz in forum Request and Feedback
    Replies: 2
    Last Post: 04-03-2006, 06:26 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •