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:

HELP! throttle body bypass install

Thread Tools
 
Search this Thread
 
Old Jul 12, 2002 | 09:52 PM
  #1  
RWBJR's Avatar
RWBJR
Thread Starter
Intermediate
 
Joined: Apr 2002
Posts: 36
Likes: 0
From: Mpls MN
Default HELP! throttle body bypass install

Ok, first let me startup by saying I'm not very mechanically inclined (as you'll see) I installed the tb bypass, started the car and and antifreeze all of the floor. I believe it is spraying out of the the bottom opening of the throttle body where the hose once was. Are you suppose to plug the two openings? Help! :confused:
Reply
Old Jul 12, 2002 | 10:28 PM
  #2  
RWBJR's Avatar
RWBJR
Thread Starter
Intermediate
 
Joined: Apr 2002
Posts: 36
Likes: 0
From: Mpls MN
Default Re: HELP! throttle body bypass install (RWBJR)

Is there anyone out there can lend a hand? I would greatly appreciate it!
Reply
Old Jul 13, 2002 | 01:08 AM
  #3  
WestCoastCorvette's Avatar
WestCoastCorvette
Supporting Vendor
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2000
Posts: 1,633
Likes: 25
From: Orange California
Default Re: HELP! throttle body bypass install (RWBJR)

YOU ARE SUPPOSED TO PULL OFF BOTH LINES AND THE BYPASS CONNECTS THE TWO HOSES TOGETHER. THE NIPPLES ON THE TB CAN STAY OPEN.

PAUL


[Modified by COH PAUL, 11:09 PM 7/12/2002]
Reply
Old Jul 13, 2002 | 03:15 PM
  #4  
carpe dm's Avatar
carpe dm
Le Mans Master
15 Year Member
 
Joined: Oct 1999
Posts: 8,205
Likes: 40
From: Tucson AZ
Default Re: HELP! throttle body bypass install (RWBJR)

The hose (with "bypass") goes to the nipple on the pass. head. Both TB nipples are free of hoses and can remain open or be plugged as you wish. Just running a single hose from the radiator to the head seems better to me. :rolleyes:
Reply
Old Jul 13, 2002 | 05:43 PM
  #5  
MY1Fast99C5's Avatar
MY1Fast99C5
Pro
 
Joined: Jun 2002
Posts: 687
Likes: 0
From: Wichita Falls Tx
Default Re: HELP! throttle body bypass install (carpe dm)

All I did was get a 1/4" hose and run from the radiator to the head inlet tube. Works just fine.
Reply
Old Jul 13, 2002 | 05:51 PM
  #6  
RWBJR's Avatar
RWBJR
Thread Starter
Intermediate
 
Joined: Apr 2002
Posts: 36
Likes: 0
From: Mpls MN
Default Re: HELP! throttle body bypass install (carpe dm)

Thanks for the replies. Before I attached the hoses I did NOT remove the radiator cap to allow it to depressurize. Does radiator fluid remain in the intake manifold or somewhere else while the car is not running? Could that cause the bottom "nipple", under the coupler, to leak antifreeze when I started it? :confused:

Also, did you guys just push the rubber hoses over the bypass tube so that the bypass tube was not showing at all?

Lastly, did you guys just tuck the hose under the coupler or did you fasten it down some how?

Thanks for your help, I've learned a lot from everyone in the forum. There's a great wealth of experience and knowledge. :cheers:
Reply
Old Jul 14, 2002 | 08:29 AM
  #7  
Drop_Top_Dave's Avatar
Drop_Top_Dave
Team Owner
10 Year Member
 
Joined: Jul 2001
Posts: 29,737
Likes: 0
Kid Rock Fan
Cruise-In IV Veteran
Default Re: HELP! throttle body bypass install (RWBJR)

Be very careful here. One of the two lines that the bypass goes to is hidden under the TB. Do not make the mistake that I made and hook the bypass up to the breather line coming out of the top of the TB or you will pump coolant into your motor oil!!! :eek: :eek: :eek:
Reply
Old Jul 14, 2002 | 09:37 AM
  #8  
Smoke-N-Shot's Avatar
Smoke-N-Shot
Race Director
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jan 2000
Posts: 15,707
Likes: 1
From: Lynnfield MA
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In VI Veteran
Default Re: HELP! throttle body bypass install (Drop_Top_Dave)

Be very careful here. One of the two lines that the bypass goes to is hidden under the TB. Do not make the mistake that I made and hook the bypass up to the breather line coming out of the top of the TB or you will pump coolant into your motor oil!!! :eek: :eek: :eek:
I still remember your post... Didn't you have a relative help you with that or something?
Reply
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
Old Jul 14, 2002 | 02:13 PM
  #9  
kewlbrz's Avatar
kewlbrz
Le Mans Master
15 Year Member
 
Joined: Jul 2000
Posts: 7,758
Likes: 0
From: Fort Worth Texas
Cruise-In II Veteran
Cruise-In III Veteran
Default Re: HELP! throttle body bypass install (Drop_Top_Dave)

Be very careful here. One of the two lines that the bypass goes to is hidden under the TB. Do not make the mistake that I made and hook the bypass up to the breather line coming out of the top of the TB or you will pump coolant into your motor oil!!! :eek: :eek: :eek:
Good point.

I just helped a forum member that did this the other day, and pumped coolant into his oil. To reiterate, do NOT use the hose that is on the top passenger side of the throttle body. That is the PCV hose.
Reply
Old Jul 14, 2002 | 08:02 PM
  #10  
Drop_Top_Dave's Avatar
Drop_Top_Dave
Team Owner
10 Year Member
 
Joined: Jul 2001
Posts: 29,737
Likes: 0
Kid Rock Fan
Cruise-In IV Veteran
Default Re: HELP! throttle body bypass install (Smoke-N-Shot)

I still remember your post... Didn't you have a relative help you with that or something?
:lol: :lol: :lol: No. I had no one to blame but myself!!! :mad
Reply
Old Jul 15, 2002 | 04:15 AM
  #11  
benelliwang's Avatar
benelliwang
Burning Brakes
25 Year Member
 
Joined: Jul 1999
Posts: 934
Likes: 0
From: Vegas
Default Re: HELP! throttle body bypass install (RWBJR)

Not worth it, put it back to stock. You won't notice any gain in power even if there is power to be gained.

By the way, I have it installed on my car :jester
Reply

Get notified of new replies

To HELP! throttle body bypass install





All times are GMT -4. The time now is 04:19 PM.

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