99 Yukon Starter Relay Constant On - Draws Down Battery - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


GMC/Chevrolet Truck/SUV When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 06-07-2011, 02:30 PM   #1
Junior Member
Thread Starter
 
Join Date: Jun 2011
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
PatH is on a distinguished road
Default 99 Yukon Starter Relay Constant On - Draws Down Battery

My battery draws down in about 2-3 days parked. Isolated problem with VOM meter and pulling one fuse at a time in engine bay fuse box. The IGN A fuse (40a) is the culprit circuit. I then pulled the Starter Relay and noticed it was hot. When I plug it in it goes on. I checked ignition switch wiggling it to make sure it wasn't still in on position. No wiggle there. I doubt it could be the ignition switch, but you never know. I put VOM meter on Starter Relay coil terminals in fuse box and the circuit is constant on regardless of ignition switch position. Car runs fine. Now I have to pull the IGN A fuse everytime I park to keep battery from draining.

I'm trying to find electric schematic of that circuit to no avail.

Anyone have suggestions?
PatH is offline   Reply With Quote
Old 06-07-2011, 02:36 PM   #2
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Replace the relay. I had one a while back that drained the battery, traced it to the power antenna relay. The relay tested as good, but it still drained the battery. Replaced relay, and problem was gone.
Danthurs is offline   Reply With Quote
Old 06-07-2011, 02:46 PM   #3
Junior Member
Thread Starter
 
Join Date: Jun 2011
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
PatH is on a distinguished road
Default

Forgot to mention, swapped relay with AC relay, same relay # 3604. Beside, with relay unplugged from box and VOM meter in the two slots that power the relay'* coil, the meter shows constant power to the relay coil. So, something is not shutting off that circuit when ignition turned off.

Thanks for the quick reply though.
PatH is offline   Reply With Quote
Old 06-07-2011, 03:00 PM   #4
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Start tracing wires back. Something is shorted or stuck.
Danthurs is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Constant 5v at AC relay's solenoid stegarsla 1992-1999 0 08-13-2013 03:23 PM
'96 Delta "88", constant corrosion on + battery terminal Guest Oldsmobile 24 12-08-2011 02:54 PM
Maxifuse/Relay Center Relay Identification Kees T General GM Chat 2 12-05-2007 08:43 PM
the time draws near... BatLimo General GM Chat 1 10-07-2007 09:16 PM
clean draws nagel79 Lounge 3 08-03-2006 11:43 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 10:36 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.