C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Engine temp and Heater

Thread Tools
 
Search this Thread
 
Old Dec 21, 2016 | 02:02 PM
  #41  
billschroeder5842's Avatar
billschroeder5842
Zen Vet Master Level VII
Supporting Gold
Veteran: Navy
10 Year Member
Liked
Loved
 
Joined: Mar 2016
Posts: 5,218
Likes: 1,174
From: Southlake, TX
Default

Originally Posted by Robert.L.Harris
Ok, I pulled out the console. The Selector Switch for Off/AC/Def/Heater is electrical, not a mechanical cable like my Jeep. The mechanics appear to be working right. Now to track down where the far ends come out and check for power at those connections.
If you don't already, please get a hand held vacuum pump. You will be able to test 100% of the system for door movement without the engine running.
Reply
Old Dec 24, 2016 | 10:37 AM
  #42  
Robert.L.Harris's Avatar
Robert.L.Harris
Thread Starter
Advanced
 
Joined: Dec 2016
Posts: 56
Likes: 4
From: Denver CO
Default

I still haven't had a chance to check coolant/heat flow, but I did find out the fuse that powers the selector switch is blown. No, not in the fuse box. Under the center console someone took the cigarette lighter, AC/Heat selector and something else and wired together. Oh yes, they used a bunch of fuses including a single 30A that all 3 wires go into and if I use the cigarette lighter ( USB Phone charger ) and the AC, it blows the fuse. So I have to find the wiring diagram somewhere to find out which of the cut wires under the center console should actually be going to which connection.

Anyone have a wiring diagram that's easily read/seen? I found an assembly manual which looks great but it doesn't give wiring colors, just "plug connector A6 into X"...
Reply
Old Dec 24, 2016 | 10:46 AM
  #43  
Big2Bird's Avatar
Big2Bird
Le Mans Master
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Dec 2006
Posts: 8,837
Likes: 1,028
Default

Lectric Limited has good diagrams. Service manual should as well, at least 81 does.

If the fuse is blown, the fan may be kaput.

One last thing. If you get it all working, and its still cold, pull the heater blower and look for leaves/critters.
Reply
Old Dec 24, 2016 | 11:50 AM
  #44  
Robert.L.Harris's Avatar
Robert.L.Harris
Thread Starter
Advanced
 
Joined: Dec 2016
Posts: 56
Likes: 4
From: Denver CO
Default

Looks like they have some great parts but I'm not seeing manuals for a '79.
Reply
Old Dec 24, 2016 | 12:03 PM
  #45  
Robert.L.Harris's Avatar
Robert.L.Harris
Thread Starter
Advanced
 
Joined: Dec 2016
Posts: 56
Likes: 4
From: Denver CO
Default

Just found this thread:

http://www.c3vr.com/vrforums/c3-elec...agrams/236625/

The link in the first post is ver worth a quick browse for anyone looking for C3 wiring diagrams : https://sites.google.com/a/c3vrmail....iring-diagrams
Reply
Old Dec 24, 2016 | 12:04 PM
  #46  
Big2Bird's Avatar
Big2Bird
Le Mans Master
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Dec 2006
Posts: 8,837
Likes: 1,028
Default

Originally Posted by Robert.L.Harris
Looks like they have some great parts but I'm not seeing manuals for a '79.
Lectric Limited has laminated charts.

For service manuals, a certain online auction site works well.
Reply




All times are GMT -4. The time now is 03:03 AM.

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