Jump to content

Possible Hydrolock

Chrisgreenm

By Chrisgreenm
June 12, 2025 in 1999-2013 Silverado 1500 & Sierra 1500

Share

https://www.gm-trucks.com/forums/topic/274196-possible-hydrolock/

Recommended Posts

Chrisgreenm

Enthusiast

Chrisgreenm

Posted June 18, 2025

Author

Posted June 18, 2025

39 minutes ago, PunchT37 said:

If it`s not the engine, then maybe the cat core is broken and rattling around. The cat is usually very hot and driving through cold water shocks the ****** out of it.

I was told it has hollowed out cats already. Downstream o2s throw codes and it sounds a little more aggressive so I believe it. I'll still go smack it while it's running and see if that changes anything

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Share

https://www.gm-trucks.com/forums/topic/274196-possible-hydrolock/

Go to topic listing

Recently Browsing 0 members
- No registered users viewing this page.
Forum Statistics

250.4k
Total Topics

2.7m
Total Posts
Member Statistics

342,743
Total Members

8,960
Most Online

Newest Member
JJ_Denali2020
Joined 1 hour ago
Who's Online 12 Members, 1 Anonymous, 1,073 Guests (See full list)
- Jay P
- Prong
- KARNUT
- ksiesel
- JJ_Denali2020
- MpR
- actively-shopping
- coreydkoster
- AndrewF
- onetactical
- midwestmoto
- devonthegreat

Latest Articles
- 2027 Chevrolet Silverado: Every Official Photo
  Thursday at 09:05 PM
- 2027 Chevrolet Silverado: Horsepower, Price, and Release Date (What We Know)
  Wednesday at 12:36 PM
- 2027 Chevrolet Silverado First Official Look
  June 16
- GM Recalls 2,700+ Trucks For Airbags That Can Explode While Parked – How To Check Your VIN
  June 3
Posts
- Thoughts on these wheels?
  
  By onetactical · Posted 26 minutes ago
  
  LOL !
- “Ticking” sound coming from front of the vehicle
  
  By JJ_Denali2020 · Posted 36 minutes ago
  
  I have been hunting down a “Ticking” sound coming from my 2020 1500 Denali for about a month now and i couldn’t figure it so i took it to the dealer and they couldn’t figure it out either. They did say the sound isn’t coming from a bad or damaged suspension component and that it was okay to drive. I’ve replaced leaf spring inserts and added Spring Things rubber spacers thinking the sound originated from the leaf springs but later realized it was coming from the front of the truck. i am posting this to see if anyone has dealt with this kind of thing before. The video is too long to add here so i am adding a link to a youtube video i made.
- Ac not keeping up
  
  By newdude · Posted 1 hour ago
  
  HDs and one or two other vehicles are still on R134a. Most everything else is R1234yf.
- Ac not keeping up
  
  By newdude · Posted 1 hour ago
  
  Just edited my response with a performance chart I found.
- RPMs drop when Brakes applied
  
  By dji1 · Posted 1 hour ago
  
  It took me less than 5 minutes to remove the brake pedal clip. It is easier when you know how to do something. Waiting on the replacement booster. Hopefully it will arrive sometime today.
GM-Trucks.com Clubs
- Black Truck Club
  
  Open Club · 612 members
- White Truck Club
  
  Open Club · 380 members
- Canadian Owners Club
  
  Open Club · 282 members
- Red Truck Club
  
  Open Club · 156 members
- diesel 3.0
  
  Open Club · 279 members
- Texas Owner's Group
  
  Open Club · 371 members
- NorthSky Blue Club
  
  Open Club · 118 members
- Midwest Owner's Group
  
  Open Club · 212 members
- 2015 Custom Sport Club
  
  Open Club · 5 members
- GM Snow Plowing Club HD
  
  Closed Club · 14 members
Popular Contributors
- Week
- Month
- Year
- All Time
1. 1
  
  newdude
  13
2. 2
  
  Atlas
  11
3. 3
  
  Chuck FB
  11
4. 4
  
  Grumpy Bear
  8
5. 5
  
  KARNUT
  7
Show More

×

Forums
Main Site
Newsroom
Road Tests
Clubs
Gallery
Activity
- Back
- All Activity
- Search
Tools
More
- Back
- Guidelines
- Staff
- Leaderboard
- Online Users

×

Create New...