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

AC experts ?

Thread Tools
 
Search this Thread
 
Old Jan 1, 2022 | 05:04 PM
  #1  
Curveit's Avatar
Curveit
Thread Starter
Drifting
20 Year Member
Veteran: Army
Active Streak: 30 Days
Active Streak: 60 Days
 
Joined: Feb 2003
Posts: 1,976
Likes: 2
From: San Antonio Texas
Default AC experts ?

I recently had my AC recharged on my'86 at a shop that turned out to be "shady" so I won't be going back... The problem is that the Evaporator rattles now. Anyone ever delt with this ? Thanks. GW
Reply
Old Jan 1, 2022 | 06:44 PM
  #2  
Kevova's Avatar
Kevova
Le Mans Master
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Default

There is nothing to cause a rattle in the evaporator unless its added to it. IMO. You need to reevaluate source of noise.
Reply
Old Jan 2, 2022 | 02:37 PM
  #3  
Curveit's Avatar
Curveit
Thread Starter
Drifting
20 Year Member
Veteran: Army
Active Streak: 30 Days
Active Streak: 60 Days
 
Joined: Feb 2003
Posts: 1,976
Likes: 2
From: San Antonio Texas
Default

The rattle started after being at that shop overnight...it sounds like it's from behind the "breadbox" so i guess it could be the Heater Core, but I've never heard of them making noise either...Anyone ?
Reply
Old Jan 2, 2022 | 03:02 PM
  #4  
Red86Z51's Avatar
Red86Z51
Safety Car
20 Year Member
Liked
Loved
Top Answer: 3
 
Joined: Mar 2003
Posts: 3,583
Likes: 504
From: Indianapolis IN
Finalist 2020 C4 of the Year - Unmodified
C4 of Year Finalist (stock) 2019
Default

Nope. Heater cores won't rattle either. Question: All the shop did was recharge your A/C system?

A dropped tool lodged in someplace could rattle. Something that was disconnected and not reconnected -or- reconnected properly could rattle. Since you say it sounds like its inside behind the dash, I would remove the hush panel on the passenger side and start inspecting up in there for anything obvious. Maybe bop on the breadbox while your down there looking to see if you can replicate the noise and try to home in on exactly where it's coming from.

Given what you've said, that'd be where I'd start.
Reply
Old Jan 2, 2022 | 03:14 PM
  #5  
Kevova's Avatar
Kevova
Le Mans Master
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Default

Why was car in shop? When do you hear noise?
Reply
Old Jan 3, 2022 | 01:50 AM
  #6  
Curveit's Avatar
Curveit
Thread Starter
Drifting
20 Year Member
Veteran: Army
Active Streak: 30 Days
Active Streak: 60 Days
 
Joined: Feb 2003
Posts: 1,976
Likes: 2
From: San Antonio Texas
Default

I haven't had a chance to dig into the Dash, Belt Tensioner, or check all the bracket bolts yet; Holidays, weather and all. The car was down for about 3 months waiting to get the Rack & Pinion rebuilt. I knew it was getting low on Freon before It was down, and when I put it all back together the Compressor started cycling...so I took it in. I just thought someone here might have experienced the same. It's new to me and I've had the car 20 years.
Reply
Old Jan 3, 2022 | 10:48 AM
  #7  
Kevova's Avatar
Kevova
Le Mans Master
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Default

When do you hear rattle? Is car moving or sitting?.
Repairs would be under the hood not in passenger compartment.
Reply
Old Jun 10, 2025 | 10:41 AM
  #8  
Slare's Avatar
Slare
Pro
10 Year Member
All Eyes On Me
Liked
 
Joined: Jun 2011
Posts: 592
Likes: 253
From: Michigan
Default

Wrong thread, similar post entry.
Reply

Get notified of new replies

To AC experts ?

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer




All times are GMT -4. The time now is 01:28 AM.

story-0
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-1
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-2
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-3
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
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE