C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Intermittent parasitic drain

Thread Tools
 
Search this Thread
 
Old Jan 4, 2019 | 02:57 PM
  #21  
84 4+3's Avatar
84 4+3
Thread Starter
Le Mans Master
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2017
Posts: 6,943
Likes: 1,490
From: New Jersey
Default

Originally Posted by ctmccloskey
If you have the value of the resistor used in your ignition key there are companies that sell permanent disabling device for these pesky alarm systems. I would probably eliminate that device from your list by disabling it. The built in alarms have been known to be real trouble at times. I bought my disabling device from Mid-America. They are cheap, I paid less than $30 for the device and it simply plugs into the system under the dashboard

The passenger side Mirror goes all the way out? Is this after starting the car or when? That is something I would investigate as you might have a problem that could draw a bit of current if the switch continues to run trying to hold the mirror out as far as it can, that could eat some serious current potentially. I would disconnect the switch from the electric mirrors for a couple weeks and see what happens.

Good Luck and best wishes in finding the culprit who likes eating away at your battery!
The mirror thing hasn't happened in a while, it just happens that sometimes when it dies it goes out.

And funny enough I don't have the chip key but IIRC the 84 security system didn't use that anyway. I believe that was new for 85.

Also, it was dead the next day to the point it wouldn't crank, with just the meter saying it was at 38 mA. So I am rethinking the whole brand new battery thing too.
Reply
Old Jan 6, 2019 | 01:56 AM
  #22  
Hot Rod Roy's Avatar
Hot Rod Roy
Safety Car
15 Year Member
 
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
Default

FYI, the residual current drain in my '84 is 13 mA. Parking my car for two weeks is not a problem. It's hard for me to believe that 38 mA will kill your battery overnight.

Reply
Old Jan 6, 2019 | 09:15 AM
  #23  
84 4+3's Avatar
84 4+3
Thread Starter
Le Mans Master
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2017
Posts: 6,943
Likes: 1,490
From: New Jersey
Default

Originally Posted by Hot Rod Roy
FYI, the residual current drain in my '84 is 13 mA. Parking my car for two weeks is not a problem. It's hard for me to believe that 38 mA will kill your battery overnight.

That's kind of where I'm at. 38 ma is within spec and shouldn't kill it in any less than 2 months.
Reply
Old Jan 6, 2019 | 01:00 PM
  #24  
hcbph's Avatar
hcbph
Safety Car
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 4,430
Likes: 609
From: Minneapolis Mn
Default

I have that meter from HF, very useful. Now onto the area being referenced on battery drain. Here's one I ran into that took a while to find. The console well where the seat adjustor is, wife had put a lipstick in it and something on it. Pressed just enough to depress the powerseat button which drained the battery.

I put a battery cutoff on mine so it's easy to disconnect the battery when it's not being run for a while. Only downside so far is I lose the radio presets but that's minor overall in relation to everything else.

Just a thought.
Reply




All times are GMT -4. The time now is 02:21 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE