It is currently Mon Nov 12, 2018 7:20 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 8 posts ] 
Author Message
PostPosted: Wed Oct 28, 2015 12:33 pm 
Offline
Posts like an L67
Posts like an L67
User avatar

Joined: Wed Jul 14, 2010 9:15 pm
Posts: 1468
Location: Palm Bay, FL
Year and Trim: 1999 Buick Lesabre Custom
So this one will kind of be a back and forth troubleshooting on my dad's Park Avenue Ultra. He's about an hour away from me, so I'll just be relaying info back and forth so he can try and troubleshoot the issue.

From what I understand, here's what's going on with the car. In the mornings, he said it's been cranking over really slowly and acting like the battery is weak or dead. He's had the alternator and battery tested, and both are testing fine (battery is relatively new, within the last few months I believe).

I've sent him here and he's tried a lot of the troubleshooting from the voltage threads, but just to list here to make things easy, he's also gone through, set up a multimeter to check the voltage on the battery, and with key off, all electronics off, it's showing a .03 amp voltage draw, and I believe it's supposed to be closer to .01amp. He's gone through and pulled all of the fuses and relays one at a time to watch what effected the meter, and said the only two fuses that made any difference were the 60amp battery fuses that dropped it down. I'm not familiar with the 00+ electrical systems, but what should he be looking for next based on that information? And anything else that I should ask him to test so that I can post back results?

_________________
Image


Joseph

Current: 2013 Infiniti G37 Journey
1999 Infiniti G20T - Sold
1999 Buick Lesabre - Race Couch - gone but not forgotten


Top
 Profile  
 
PostPosted: Wed Oct 28, 2015 12:39 pm 
Offline
Posts like a Northstar
Posts like a Northstar
User avatar

Joined: Thu May 22, 2008 8:09 pm
Posts: 2363
Location: Michigan
Year and Trim: 2002 Buick Park Ave
Has he already done the basic cleaning of connections?

_________________
Image
92 Olds 98. L67, Gen 3 M62, 2.55 pulley, FWI, PLIM, 1.8 YTs.

yourgrandma wrote:
High


Top
 Profile  
 
PostPosted: Wed Oct 28, 2015 3:11 pm 
Offline
Certified Bonneville Nut
Certified Bonneville Nut
User avatar

Joined: Mon May 10, 2010 6:11 pm
Posts: 8971
Location: Chicago, IL
Year and Trim: 2003 SLE
^That, and make sure everything is tight. Anything weird when it's actually running?

_________________
-Car Guy Carl
"Penelope" - 2003 SLE - 180k Miles
"Sydney" - 2000 Honda S2000 - 59k miles
Image


Top
 Profile  
 
PostPosted: Wed Oct 28, 2015 4:32 pm 
Offline
Posts like an L67
Posts like an L67
User avatar

Joined: Wed Jul 14, 2010 9:15 pm
Posts: 1468
Location: Palm Bay, FL
Year and Trim: 1999 Buick Lesabre Custom
Oh yeah, forgot to mention that. When I talked to him this afternoon, hr said thr battery cables were cleaned (insulation pulled back to check for corrosion), battery terminals cleaned, wirewheeled, and tightened back up nice and snug. Once the car cranks, it runs perfectly fine from what I understand, it only acts up when starting for the first time in the mornings, and I guess is intermittent, since it started up fine today, but acted up yesterday. I think he's going to check the connections to the starter to make sure those are tight next.

_________________
Image


Joseph

Current: 2013 Infiniti G37 Journey
1999 Infiniti G20T - Sold
1999 Buick Lesabre - Race Couch - gone but not forgotten


Top
 Profile  
 
PostPosted: Wed Oct 28, 2015 6:01 pm 
Offline
Certified Bonneville Nut
Certified Bonneville Nut
User avatar

Joined: Tue May 27, 2008 8:53 am
Posts: 5348
Location: Las Cruces, NM
Year and Trim: 1993 Buick Park Avenue
1994 Buick Regal Custom
Wow, I think this is going to be a major pain to track down.

I think it is an intermittent draw, and he is going to have to keep repeating the draw test until he can see the draw. He should probably start mastering the "connect the draw meter without disconnecting the battery" maneuver too, because my money is on the issue clearing every time power is disconnected, until it happens again.

What is the system voltage first thing in the morning, before the startup, just to confirm voltage is to blame.

And an issue that causes starting issues the next morning will be painfully obvious on the meter. .03 amps (30 milliamps) is not painfully obvious.

_________________
~Randall~
ImageImage

1993 Buick Park Avenue - 197k - Some odds and ends done - Simply won't die
1994 Buick Regal - 78k - Bone stock - Always ready for a good kicking
1990 Oldsmobile 88 - Gone to a better place


Top
 Profile  
 
PostPosted: Thu Oct 29, 2015 12:46 am 
Offline
Resident Gearhead
Resident Gearhead
User avatar

Joined: Mon May 19, 2008 10:30 pm
Posts: 8719
Location: Grand Rapids, Michigan
Year and Trim: 2014 Cadillac XTS Vsport.
This is GM's test for amount of parasitic draw:
Quote:
Check and record the current reading.
Note the battery reserve capacity.
Divide the reserve capacity by 4.
Compare this to the multimeter milliampere reading taken in the previous step.
The parasitic current drain should not exceed this number.
Example: If a battery has a reserve capacity of 100 minutes , the current drain should not exceed 25 mA .

If everything electrical checks out, it's possible that the starter is starting to go.

_________________
*Gone, but not forgotten* - Black 2000 SSEi, HIR Headlights, Angel Eyes fogs, 3rd brake light overlay, hi-flo cat, 180 degree thermostat, HS 1.9 rockers, LSx yellow springs, Intense FWI, PCM, shift kit, push rods, and 3.4 Pulley. ZZP Power Log.


Top
 Profile  
 
PostPosted: Fri Oct 30, 2015 7:01 am 
Offline
Posts like an L67
Posts like an L67
User avatar

Joined: Wed Jul 14, 2010 9:15 pm
Posts: 1468
Location: Palm Bay, FL
Year and Trim: 1999 Buick Lesabre Custom
Thanks for the info, I'll pass this along to dad and let you know what he says when he's able to do some more diagnostics on the car. This morning is pretty chilly, so if it acts up in the cold, hopefully he'll be able to see something today.

_________________
Image


Joseph

Current: 2013 Infiniti G37 Journey
1999 Infiniti G20T - Sold
1999 Buick Lesabre - Race Couch - gone but not forgotten


Top
 Profile  
 
PostPosted: Fri Oct 30, 2015 1:01 pm 
Offline
Posts like an LG3
Posts like an LG3

Joined: Tue May 27, 2008 11:48 pm
Posts: 339
Year and Trim: 96 SE
your Dad seems to be quite handy with a volt/amp meter. ask him to run electrical leads from the battery and to a voltmeter in the driver compartment. under the conditions that you stated, see how much the voltage drops at startup. could still be the battery even tho new. if the voltage drops below 9 volts, get another and different brand of battery. one that has a cold cranking amps above 600.

for comparison, my 95 PA NA (with meter routed to driver compartment) reads 12.06 V at first morning startup. outside temp 75 F. with key engaged to start, meter dropped to 10 V. meter response is not instantaneous but is digital so I would guess no lower than 9V. with car running meter rose to 14.4 V (alt charging).

I have also noted that my guess work in torqueing battery bolts is less than specified. if your Dad has torque wrench, torque to 11 foot pounds.

also note that my test leads were connected to wires going to starter and accessories not directly to battery. this connection ensures that you see the actual voltage going to the starter.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 

All times are UTC - 5 hours [ DST ]


Related topics
 Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. 1997 Park Avenue Ultra HVAC Issue

RJolly87

7

858

Sun Sep 27, 2009 1:44 am

01bonneSC View the latest post

There are no new unread posts for this topic. LIM gasket replacement on an '02 Buick Park Avenue Ultra

Billha

14

3220

Sat Nov 30, 2013 6:14 pm

Billha View the latest post

There are no new unread posts for this topic. Voltage Drop

Sierrabarry

0

1018

Thu Dec 30, 2010 1:55 pm

Sierrabarry View the latest post

There are no new unread posts for this topic. Voltage drop when ABS activates

Ponch 04

8

1783

Mon Jan 11, 2010 11:27 am

Ponch 04 View the latest post

There are no new unread posts for this topic. Voltage drop and engine starts running rough

Pickles8788

5

271

Mon Feb 12, 2018 8:45 pm

MKMike View the latest post

 


Who is online

Users browsing this forum: No registered users and 10 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group


phpBB SEO