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

HVAC blower relay location

Thread Tools
 
Search this Thread
 
Old Jun 3, 2009 | 01:14 PM
  #1  
95davev's Avatar
95davev
Thread Starter
Heel & Toe
 
Joined: Sep 2008
Posts: 18
Likes: 0
From: St. Charles MO
Default HVAC blower relay location

About every 4th or 5th time I start my '95 the HVAC blower does not come on. It has the electronic system. The buttons all work fine and the AC compressor is turning on. If I hit a pothole/bump with my right front tire then the blower comes on. I'm pretty convinced I have a relay that is hanging up. Once it comes on it works fine and never quits until I shut it down.

Anyone familiar enough with the system to know where there is a relay for the blower located?
Reply
Old Jun 3, 2009 | 03:13 PM
  #2  
SunCr's Avatar
SunCr
Le Mans Master
10 Year Member
 
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Default

There isn't one. Electronic uses a Module that amplifies Low Voltage signals from the Processor (Programmer for your Year) to run the Blower. It's bolted to the top of the Evaporator Case. Brown or Dark Tan is usually the input. Purple is the out. Red is power. Check the connector. Check Connector at the Blower Motor. If the Compressor is cutting out along with the Blower, check Connector at the Low Pressure Switch.
Reply
Old Jun 3, 2009 | 04:14 PM
  #3  
95davev's Avatar
95davev
Thread Starter
Heel & Toe
 
Joined: Sep 2008
Posts: 18
Likes: 0
From: St. Charles MO
Default

Thanks. I found the module. Since it appears to be solid state and not a mechanical relay I can't see how hitting a bump would make it start working. I just checked the connectors to it and they look to be in very good/clean condition. I'll check the connector to the blower. Compressor is not cutting out...only the blower.
Reply
Old Jun 3, 2009 | 07:48 PM
  #4  
MikeC4's Avatar
MikeC4
Melting Slicks
 
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
Default

The next time the blower motor does not come on, open the hood and bang lightly on the motor with a rubber mallet or something. Could be the motor itself is going kaput.

Reply

Get notified of new replies

To HVAC blower relay location





All times are GMT -4. The time now is 03:14 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