C7 Tech/Performance Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

2019 LT4 - Coolant Cap Stuck

Thread Tools
 
Search this Thread
 
Old Dec 11, 2024 | 10:05 PM
  #1  
VET4JDC's Avatar
VET4JDC
Thread Starter
Pro
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jul 2002
Posts: 513
Likes: 2
From: Virginia Beach Va
Default 2019 LT4 - Coolant Cap Stuck

As title says, my 2019 coolant reservoir cap will not come off. I can turn it counterclockwise as many as 1.5 to 2 times and then it stops. It's never been off before. What's the cause and how do I remove it?

Does it screw off or does it turn some and then lift off? If it lifts off, how much do I need to unscrew it before pulling up?

Reply
Old Dec 11, 2024 | 11:42 PM
  #2  
DrivesWithTwoFeet's Avatar
DrivesWithTwoFeet
Melting Slicks
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2018
Posts: 2,014
Likes: 1,591
From: Clermont, Florida
Default

It screws off.
Reply
Old Dec 12, 2024 | 09:06 AM
  #3  
kodpkd's Avatar
kodpkd
Le Mans Master
Active Streak: 30 Days
Community Builder
Community Influencer
Top Answer: 1
 
Joined: Jun 2019
Posts: 5,485
Likes: 2,193
From: Loveland
Default

I just had mine off, they can be very tight. keep turning it. I had to use a large channel lock. About 5 turns.
I just tried mine again, 5 turns.
I put a little grease on the O ring and now it comes off, easy peasy.
Mine also turned about 2 turns and got stuck, had to use my tool.

Last edited by kodpkd; Dec 12, 2024 at 10:23 AM.
Reply
Old Dec 12, 2024 | 09:34 AM
  #4  
rtv900's Avatar
rtv900
Melting Slicks
All Eyes On Me
Top Answer: 1
Top Answer: 3
Top Answer: 5
 
Joined: Jun 2019
Posts: 2,040
Likes: 928
From: near philly
Default

I thought I remember it turning first and then lifting off kind of like a traditional cap with those littler tangs on the sides
Reply
Old Dec 12, 2024 | 11:35 AM
  #5  
kodpkd's Avatar
kodpkd
Le Mans Master
Active Streak: 30 Days
Community Builder
Community Influencer
Top Answer: 1
 
Joined: Jun 2019
Posts: 5,485
Likes: 2,193
From: Loveland
Default

Nope.
Reply
Old Dec 12, 2024 | 07:49 PM
  #6  
GOLD72's Avatar
GOLD72
Race Director
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2000
Posts: 11,143
Likes: 1,913
From: Missouri City, TX
Default

Originally Posted by kodpkd
I just had mine off, they can be very tight. keep turning it. I had to use a large channel lock. About 5 turns.
I just tried mine again, 5 turns.
I put a little grease on the O ring and now it comes off, easy peasy.
Mine also turned about 2 turns and got stuck, had to use my tool.
Me too. Had to add coolant after 5 years and I needed channel locks to break it loose.
Reply
Old Dec 14, 2024 | 08:05 AM
  #7  
RonC7's Avatar
RonC7
Safety Car
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2012
Posts: 3,858
Likes: 1,863
From: St. Louis Metro East IL
Default

You should be changing Dexcool coolant at 5 years. 60% drinkable water / 40% Dex above -18 F. Use 50/50 if you expect to see temps below -18 F (yeah, right!).

Ron
Reply
Old Dec 18, 2024 | 11:06 PM
  #8  
Vetteman Jack's Avatar
Vetteman Jack
Administrator
Supporting Lifetime
Veteran: Navy
St. Jude 20 Year Donor
25 Year Member
Veteran: Reserves
 
Joined: Mar 2001
Posts: 368,389
Likes: 24,795
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Default

Thanks for the tip on removing the coolant cap. I have not taken mine loose so will keep this in mind when I do.
Reply

Get notified of new replies

To 2019 LT4 - Coolant Cap Stuck

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

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

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

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

 Verdad Gallardo




All times are GMT -4. The time now is 06:23 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