1990 chevy truck electrical problem


	Auto Repair Home	SEARCH POSTS	WHO'S ONLINE	LOG IN

Automotive Repair

Car Troubleshooting Topics
  Car Troubleshooting
  Engine Troubleshooting
  Engine Fault Codes
  Electrical and Wiring
  Transmission Problems

Car Repair Topics
  Car Making Noises
  Car Stereo Repair
  Heating or AC Issues
  Motorcycles and ATVs
  Tricks of the Trade
  Truck Repair Advice

Site Options:
  Login
  Sign up here!

Latest Forum Post

Lukewarm Heat............

New antifreeze reverse flush heater core...

multiple warning lights

2013 GMC Terrain 130,000 miles 4 cylinde...

2014 Nissan Sentra Shaking

Car recently started shaking when accele...

Buy Flualprazolam Powder Online Whatsapp: +1(424) 328-1086

N/A

1989 toyota pickup 3.0 crank no start

I have a 1989 toyota pickup 3.0 crank no...

Strut spring orientation and strut mount tension nut

2017 Nissan rogue awd 2.5 L Put in Monro...

Transmission stuck in part, I have tried everything

So I'm working on my elderly fathers 201...

2017 dodge journey LED headlights on/off randomly

Year of vehicle 2017 Make of vehicle dod...

Kia Soul starter replacement issues!

Okay so my car is a 2010 Kia soul 2.0 en...

Please Help - Knock sound & engine fail

Hi all, Hoping to get some insight and ...

1990 chevy truck electrical problem

Sign up here!

Search for (search options)

Auto Repair Home>> Truck Repair>> Truck Repair Advice

upstate62
New User

Jul 8, 2009, 2:58 AM

Post #1 of 3 (6775 views)

1990 chevy truck electrical problem	Sign In

I have a 1990 chevy 2500 with 350 cu.in. with 80,000 miles .After about four days the battery goes dead. I have replaced the battery and have had the new battery load tested and tests ok. With a voltmeter between the battery post and positive lead I see a slight 12 volt draw (barely draws an arc) With meter in place I have removed all the fuses one at a time from fuse panel, and removed the fuel pump relay and still have the draw. All lights work properly so I don't think it can be a defective socket.

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 8, 2009, 3:11 AM

Post #2 of 3 (6766 views)

Re: 1990 chevy truck electrical problem	Sign In

There is a procedure for finding a battery draw like that.

You will need a digital ammeter and a jumper wire with clips on the ends to do this.
First rig any door switches so you can have a door open without triggering the interior lights and unplug the hood light. Remove one battery cable and attach the meter in series between the battery cable and battery post. Take the jumper wire and also attach it the same way. Leave the jumper wire on for at least 10 minutes to expire all the automatic timers. Now remove the jumper wire and read the meter. Anything over 50ma is too much draw. The way you locate this is to start removing fuses one at a time until the meter drops to normal level. This will be the circuit with something staying on. Determine what components are part of that circuit and check them individually until the problem is isolated.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

Guest
Anonymous Poster

Aug 30, 2009, 1:11 AM

Post #3 of 3 (6640 views)

Re: 1990 chevy truck electrical problem	Sign In

check glove compartment light, it might be staying on

Search for (options) Privacy Sitemap