Throttle Body \ LT1
Thread Starter
Safety Car
Joined: Jul 2006
Posts: 3,696
Likes: 1
From: MA
Throttle Body \ LT1
My question might be in search but couldnt find it.
2 Part question
1) Can you use Carb\Throttle body cleaner spay"Gunk" and spray it directly into throttle body to clean it like a you would a Carb while car is running??
2) I would like some forum members opinions What is the best fuel injector cleaner to dump in your tank.
Not big on Seafoam dont really trust the product for some reason
Thanks in Advance
Repzard
2 Part question
1) Can you use Carb\Throttle body cleaner spay"Gunk" and spray it directly into throttle body to clean it like a you would a Carb while car is running??
2) I would like some forum members opinions
What is the best fuel injector cleaner to dump in your tank.Not big on Seafoam dont really trust the product for some reason
Thanks in Advance
Repzard
Instructor
Joined: Apr 2007
Posts: 136
Likes: 0
From: Fountain CO
I personally like BG44 fuel injector cleaner. It's expensive and can be difficult to find.
Spraying cleaner while running will just increase your RPM, I would do it with it off let that stuff soak in.
Spraying cleaner while running will just increase your RPM, I would do it with it off let that stuff soak in.
Last edited by TOMS93; May 9, 2007 at 11:29 PM.
Thread Starter
Safety Car
Joined: Jul 2006
Posts: 3,696
Likes: 1
From: MA
Ok Thanks Toms93
Just wasnt sure if it was safe with Fuel Injection cars as far as spraying that stuff to clean TB
Reason for doing it is I have a hard start issue " good 5-6 seconds before it starts"and that could be one of the problems TB is dirty.
I looked for leaking Injectors and didnt see any.
And did the test one forum member told me to do and see if i see smoke on start up and didnt see that either.
Just took car for sticker today and emmision test was awsome
Way under max limits on every test Hydro Carbons and so on..., everything passed with flying colors on smog testing.
Just wasnt sure if it was safe with Fuel Injection cars as far as spraying that stuff to clean TB
Reason for doing it is I have a hard start issue " good 5-6 seconds before it starts"and that could be one of the problems TB is dirty.
I looked for leaking Injectors and didnt see any.
And did the test one forum member told me to do and see if i see smoke on start up and didnt see that either.
Just took car for sticker today and emmision test was awsome
Way under max limits on every test Hydro Carbons and so on..., everything passed with flying colors on smog testing.
Instructor
Joined: Apr 2007
Posts: 136
Likes: 0
From: Fountain CO
I had to take mine off and clean it. It was bad, the previous owner had over saturated the K&N with filter oil. I also, changed the plugs which looked like the originals. Most of the pucks where gone. The C4 runs great now.
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
I would take it off to clean it. You really need to remove the IAC and just clean the end of it, and not let the cleaner go up inside of it. I do use just standard carb spray cleaner, but you can get the TB so much cleaner if you remove it. Then you can clean through the ports, back side of the butterflys, the seat where the IAC motor goes, etc.
Le Mans Master
Joined: Oct 2003
Posts: 7,625
Likes: 4
From: Director of Bands
St. Jude Donor '08
Take the TB off... not a hard job. Also be sure to use a Carb/Throttle Body cleaner - NOT just a carb cleaner. Many throttle bodies have a coating on them and the carb cleaner will eat right through it.
Race Director
Joined: Nov 2000
Posts: 17,103
Likes: 39
From: stop the fun suckers
This is VERY important and it is not mentioned enough in this thread.. USE ONLY THROTTLE BODY CLEANER The can from the parts store will be labeled as such.. there is a fine coating on the throttle bodies that will be removed/damaged with carb cleaner..
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Team Owner
Joined: Oct 2000
Posts: 96,443
Likes: 9
From: Fort Knox, KY
Cruise-In IV Veteran
Cruise-In VI Veteran
Cruise-In VII Veteran
Cruise-In VIII Veteran
Follow the article in the C4-Tech Tips Section on this Forum. You need to completely remove the TB and IAC motor to clean the pintle.
Really mellows the base idle and improves throttle response, too. I clean mine once a year.
Really mellows the base idle and improves throttle response, too. I clean mine once a year.
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
Are you sure about this with the LT1? I have cleaned mine several times with carb cleaner. Its cast alum. Also, the reworked 52 mm versions are simply rebored and have new butterflys made to fit. I have been told that the coating is a problem with fords but not our cars. Just wanting to know what source your information is coming from.
Melting Slicks
Joined: Nov 2003
Posts: 2,679
Likes: 1
From: South Amboy NJ
I would take it off to clean it. You really need to remove the IAC and just clean the end of it, and not let the cleaner go up inside of it. I do use just standard carb spray cleaner, but you can get the TB so much cleaner if you remove it. Then you can clean through the ports, back side of the butterflys, the seat where the IAC motor goes, etc.
Also a great time to the the throttle body bypass.Are you sure about this with the LT1? I have cleaned mine several times with carb cleaner. Its cast alum. Also, the reworked 52 mm versions are simply rebored and have new butterflys made to fit. I have been told that the coating is a problem with fords but not our cars. Just wanting to know what source your information is coming from.
Race Director
Joined: Nov 2000
Posts: 17,103
Likes: 39
From: stop the fun suckers
I used to spin wrenches for a living.. many many moons ago.. and this was always professed by the head mechanics.. I'll dig through my FSM when I get home to see if there is any mention of it there..
Carb cleaner and throttle body cleaner cost the same.. why risk it?
Carb cleaner and throttle body cleaner cost the same.. why risk it?
Melting Slicks
Joined: Nov 2004
Posts: 2,799
Likes: 2
From: Cape Coral FL
Ford made a carb/throttle body cleaner that worked a lot like Dow Bathroom Cleaner (scrubbing bubbles!), that clung to the surfaces sprayed on... great stuff, but I think it's discontinued (sort of like chlorinated Brakleen).
Intermediate
Joined: Mar 2007
Posts: 28
Likes: 0
From: Orlando Florida
Ok Thanks Toms93
Just wasnt sure if it was safe with Fuel Injection cars as far as spraying that stuff to clean TB
Reason for doing it is I have a hard start issue " good 5-6 seconds before it starts"and that could be one of the problems TB is dirty.
I looked for leaking Injectors and didnt see any.
And did the test one forum member told me to do and see if i see smoke on start up and didnt see that either.
Just took car for sticker today and emmision test was awsome
Way under max limits on every test Hydro Carbons and so on..., everything passed with flying colors on smog testing.
Just wasnt sure if it was safe with Fuel Injection cars as far as spraying that stuff to clean TB
Reason for doing it is I have a hard start issue " good 5-6 seconds before it starts"and that could be one of the problems TB is dirty.
I looked for leaking Injectors and didnt see any.
And did the test one forum member told me to do and see if i see smoke on start up and didnt see that either.
Just took car for sticker today and emmision test was awsome
Way under max limits on every test Hydro Carbons and so on..., everything passed with flying colors on smog testing.
Sounds like you could have a problem with your residual fuel pressure...If you fuel pressure is dropping very low after you turn your car off that could cause a hard start condition for sure, May want to get a fuel pressure gauge just to check. It is very easy, basicly hook it up crank the car and let it run a sec for fuel pressure to settle then cut it off and see how low it drops after 2 min or so.
Le Mans Master
Joined: May 2005
Posts: 5,214
Likes: 65
From: Queensland, AUSTRALIA
That will have nothing to do with it. The fuel pressure comes up as soon as you hit the key to on, so he would have some drivability issues if it had anything to do with that.
Use what ever cleaner you like, carby cleaner is fine, there is no coating in there to destroy. If there is, mine is long gone and my throttle body is still working perfectly fine. It has also been over-bored and new butterflies years ago, and never an issue. If there ever was a coating, it hasnt effected anything not being there.
Use what ever cleaner you like, carby cleaner is fine, there is no coating in there to destroy. If there is, mine is long gone and my throttle body is still working perfectly fine. It has also been over-bored and new butterflies years ago, and never an issue. If there ever was a coating, it hasnt effected anything not being there.
