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

ac fan switch

Thread Tools
 
Search this Thread
 
Old Oct 3, 2017 | 10:54 PM
  #1  
weekndz's Avatar
weekndz
Thread Starter
1st Gear
 
Joined: Oct 2017
Posts: 1
Likes: 0
Default ac fan switch

my ac fan switch does not change fan speed. don't even have high speed. Changed resistor piece. What to check next?
Reply
Old Oct 3, 2017 | 11:31 PM
  #2  
xrav22's Avatar
xrav22
Drifting
10 Year Member
 
Joined: Mar 2013
Posts: 1,952
Likes: 239
From: Venice Cali.
Default

I cant say what year you have but if you have no fan and changed the resistor, you may have a failed blower fan. If the resistor fails it usually defaults to high.
That is assuming it was working and now it isn't.
Good luck
Reply
Old May 29, 2019 | 11:13 PM
  #3  
Billymac's Avatar
Billymac
Cruising
10 Year Member
All Eyes On Me
Liked
 
Joined: Sep 2012
Posts: 12
Likes: 0
From: Georgia
Default

Thank you!!!
Reply
Old May 30, 2019 | 01:18 AM
  #4  
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

Gotta know what year!! Automatic a/c, or manual? If it's an early C4, I'm going to guess it's a bad relay. Probably located below your a/c - heater fan motor, but we need to know the year!!

Reply
Old May 31, 2019 | 09:29 AM
  #5  
FOURSPEEDVETTE's Avatar
FOURSPEEDVETTE
Safety Car
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Oct 2007
Posts: 4,426
Likes: 229
From: Pennsylvania
Default

Originally Posted by Hot Rod Roy
Gotta know what year!! Automatic a/c, or manual? If it's an early C4, I'm going to guess it's a bad relay. Probably located below your a/c - heater fan motor, but we need to know the year!!

I just had this same problem on my 85. I replaced the blower motor resistor and the problem remained. I then replaced the blower motor relay and the problem was fixed. All fan speed positions work correctly now..
Reply

Get notified of new replies

To ac fan switch





All times are GMT -4. The time now is 07:37 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