C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Tapping noise

Thread Tools
 
Search this Thread
 
Old Jan 23, 2020 | 09:38 AM
  #1  
Temps_c5's Avatar
Temps_c5
Thread Starter
Advanced
 
Joined: Dec 2017
Posts: 84
Likes: 1
Default Tapping noise

I have a bit of a situation I had my oil changed about 500 miles ago or so miles ago 2 days ago I took it on it on a drive as I got off the highway and came to a stop my oil pressure dropped significantly to the point where a lil tapping sound could be heard so my Instinct was to pull over and turn it off I called a tow truck bc I didn’t want to risk it and drive it home so maybe I thought I was leaking oil but that wasn’t the case so I changed the oil and oil filter and it seems now I get a higher oil pressure and it won’t drop but once the car warms up the lil tapping sound comes back but it’s only when the car warms up
Reply
Old Jan 23, 2020 | 03:35 PM
  #2  
wydopnthrtl's Avatar
wydopnthrtl
Drifting
15 Year Member
Conversation Starter
Liked
Loved
 
Joined: May 2007
Posts: 1,550
Likes: 324
From: Mid Ohio
Default

You want 10psi for every 1000 rpms is a rule of thumb. (there is a valve that prevents over pressure and a LS1 in normal condition should be 20+ nearly all the time)

If its above that I'd suggest 1/2 a can of STP and see if it stops.
If its below that I think you have mechanical problems.

Last edited by wydopnthrtl; Jan 23, 2020 at 03:37 PM.
Reply
Old Jan 23, 2020 | 04:41 PM
  #3  
Temps_c5's Avatar
Temps_c5
Thread Starter
Advanced
 
Joined: Dec 2017
Posts: 84
Likes: 1
Default

Originally Posted by wydopnthrtl
You want 10psi for every 1000 rpms is a rule of thumb. (there is a valve that prevents over pressure and a LS1 in normal condition should be 20+ nearly all the time)

If its above that I'd suggest 1/2 a can of STP and see if it stops.
If its below that I think you have mechanical problems.
a can of stp what is that I’m sorry might be a dumb question
Reply
Old Jan 23, 2020 | 07:09 PM
  #4  
lunaticfringe007's Avatar
lunaticfringe007
Racer
Supporting Member
All Eyes On Me
Liked
Loved
Community Favorite
 
Joined: Mar 2019
Posts: 302
Likes: 51
From: Northern NV
Default

Originally Posted by Temps_c5
a can of stp what is that I’m sorry might be a dumb question
An oil additive that may make your oil a little thicker.
Reply
Old Jan 23, 2020 | 07:13 PM
  #5  
Temps_c5's Avatar
Temps_c5
Thread Starter
Advanced
 
Joined: Dec 2017
Posts: 84
Likes: 1
Default

Okay thank I’ll be sure to try that and hopefully it goes away
Reply
Old Jan 24, 2020 | 10:26 AM
  #6  
helga203's Avatar
helga203
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 6,001
Likes: 721
Default

Originally Posted by Temps_c5
Okay thank I’ll be sure to try that and hopefully it goes away
The only other thing that it could be is your oil pick up is coming loose and pulling air. There's an o.ring there and if it comes loose that's the start of it and will eventually get worse. Be careful because that will toast your engine.
Reply
Old Jan 24, 2020 | 11:36 AM
  #7  
nschiff's Avatar
nschiff
Instructor
 
Joined: Feb 2019
Posts: 161
Likes: 14
Default

You can find the source of the tapping with a stethoscope If you feel you need thicker oil to get the pressure up run Rotella 10W-40 non synthetic rather than STP.
Reply
Old Jan 24, 2020 | 09:14 PM
  #8  
Temps_c5's Avatar
Temps_c5
Thread Starter
Advanced
 
Joined: Dec 2017
Posts: 84
Likes: 1
Default

Originally Posted by nschiff
You can find the source of the tapping with a stethoscope If you feel you need thicker oil to get the pressure up run Rotella 10W-40 non synthetic rather than STP.
I have good pressure now that I have changed the oil but the tapping has not left I’m assuming a lifter collapsed since their wasn’t enough oil when the pressure dropped I will upload a picture of the oil pressure at idle but I have put the stp in the oil but the tapping seems to come back when the motor warms up

Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Joe Kucinski
story-2

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

 Verdad Gallardo
story-3

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

 Joe Kucinski
story-4

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

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

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

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Jan 25, 2020 | 12:04 PM
  #9  
bonesbrakr's Avatar
bonesbrakr
Burning Brakes
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2011
Posts: 829
Likes: 288
Default

Could of been a slightly loose oil filter. Did the filter come off with no trouble???
Reply
Old Jan 25, 2020 | 12:46 PM
  #10  
nschiff's Avatar
nschiff
Instructor
 
Joined: Feb 2019
Posts: 161
Likes: 14
Default

If you could get some audio uploaded that would help. I have used Marvel Mystery oil to bring lifters back to life.
Reply
Old Jan 25, 2020 | 09:55 PM
  #11  
Temps_c5's Avatar
Temps_c5
Thread Starter
Advanced
 
Joined: Dec 2017
Posts: 84
Likes: 1
Default

Originally Posted by bonesbrakr
Could of been a slightly loose oil filter. Did the filter come off with no trouble???
the oil filter was on there pretty tight
Reply
Old Jan 25, 2020 | 09:55 PM
  #12  
Temps_c5's Avatar
Temps_c5
Thread Starter
Advanced
 
Joined: Dec 2017
Posts: 84
Likes: 1
Default

Originally Posted by nschiff
If you could get some audio uploaded that would help. I have used Marvel Mystery oil to bring lifters back to life.
sure thing I will try and get some audio tomorrow morning
Reply

Get notified of new replies

To Tapping noise





All times are GMT -4. The time now is 06:53 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE