How to clean a throttle body and Idle air control valve (iac)
*** PLEASE READ ***
In this video demonstration, I show how to get to, remove, clean, and replace the throttle body and idle air control motor (aka IAC) on a 4.2l ford motor. This procedure is the same for any fuel injected vehicle.
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The vans require removal of alot more stuff just to access the throttle body.
A dirty IAC can cause a rough idle. A dirty throttle body can harm performance and cause rough engine operation.
When the throttle body or iac is removed a new gasket must be used to properly seal the connection to the intake.
GM idle air motors are generally mounted on the throttle body and can be cleaned without removal from the throttle body. This means one less gasket and a lesser chance of creating a vacuum leak.
The ford throttle body had a note on it that said it was not to be cleaned because the coating on the throttle blade might be damaged. Thats fine for a new car but that has to be disregarded when working on something that has some miles on it.
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* * * Definitions: * * *
MAF - Mass Air Flow sensor - Monitors the amount of air the engine is intaking.
IAT - Intake Air Temperature - Measures the temperature of the air the engine is intaking.
IAC - Idle air control - Controls the amount of air the engine is intaking while it is idling.
Throttle body - Responsible for regulating flow of air into the engine as you press the gas pedal.
TPS - Throttle position sensor - Tells the computer how far you are opening the blade in the throttle body so it can add more fuel to compensate the added air.
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Quick Tip-Throttle Cleaning - EricTheCarGuy
This one goes out to BowlingBallOut who posted a question about a sticky throttle on his Saturn. It was a great question so I decided to make this video in response to it. There are many different configurations of throttle assemblies but for the most part if you have a throttle that is sticking you might be able to fix it using the procedures in this video. I am aware you may not able to purchase spray throttle cleaner in some states now but I'm sure they have some alternative available at your local parts store.
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BowlingBalOutl's chanel
http://www.youtube.com/user/bowlingballout
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Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.
How To Fix A Car That Idles Poorly
Scotty Kilmer, mechanic for the last 42 years, show how you can fix your car if it's idling poorly. Visit Scottykilmer.com for free answers to all your car questions.
How To Solve Honda Idle Problems - EricTheCarGuy
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Before posting questions about Honda idle problems please read this: http://www.ericthecarguy.com/forum/8-Service-and-Repair-Questions-Answered-Here/41476-solving-honda-idle-issues-hunting-idle
The viewers have chosen and this weeks video will be about solving Honda idle problems. I'm really not surprised as I get a lot of questions and requests about this very subject. Here are the links I promised in the video that will help you address specific issues mentioned in the video.
How To Bleed a Cooling System
http://www.youtube.com/watch?v=zUpXgAJ1gjU
How to Check for Vacuum Leaks
http://www.youtube.com/watch?v=9CPqbaSgcok
Reading Check Engine Light Codes
http://www.youtube.com/watch?v=BD05sPclLyE
Diagnosing an Overheat
http://www.youtube.com/watch?v=hUzOTnsWImI
Hopefully when your done checking all that stuff out you will have solved your Honda's idle problem, if not leave a comment or send me a message and I'll see what I can do just make sure you have tried all the stuff in the videos first as that saves me from typing so much.
I also want to add my "Idle Speech" into the mix here: http://www.ericthecarguy.com/forum/8-Service-and-Repair-Questions-Answered-Here/41475-solving-honda-idle-issues-rough-idle
There are a lot of things that can contribute to an idle issue, in fact in the end it may still be there to some degree because of the nature of that engine however here are some things to start with.
First start with a good tune up, use NGK or Nippon Denso plugs, don't change the wires if they are OE, if they aren't OE you might consider NGK wires as they are very good and less expensive then OE. A quality cap and rotor should be good. A new air filter also helps.
Don't change the PCV valve, if you see an aftermarket PCV valve in there put a Honda in, believe it or not I've seen idle issues caused by aftermarket PCV valves, the OE's last just about forever so you can easily justify the expense.
Next a good valve adjustment, this goes a long way to smooth out the idle if done correctly, mess it up and things can get a lot worse though.
While you have the valve cover off check the timing belt tension, if you feel a lot of slack this can cause the cam to 'chunk' as it spins causing a rough idle. If you think the belt has been on there for some time then you might consider changing it and resetting the tension properly, if it's not ready for replacement you can reset the tension to take up the slack.
DO NOT adjust the idle screw under any circumstances, it is set at the factory and that is the reason it was sealed in the first place. If you find that the seal has been broken and you have a low idle and you have done all of the above then you might turn the screw out a little to see if that helps the idle but only enough to try and bring it back to where it was before it was adjusted in the first place.
Last clean the screen in the Idle Air Control valve, this can get clogged up with carbon over time and cause the flow through it to be restricted which can cause idle issues.
If you still have a 'rough' idle after all of this THEN look to the engine mounts as you want to be sure the engine is running correctly before you go for those as the one in the back is a real pain to replace.
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Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.
How to Tint a Door Window
this is an instructional video on how to tint a door window. it was done in LLumar ATC 40% complete tint including a windshield strip.
Honda-Acura Surging Idle Speed (case study)
What causes a surging idle speed on a Honda or Acura? How to determine if the cold fast idle valve is operating properly. How to adjust a cold fast idle valve. How to test the IAC solenoid.
How To Find Suspension Noises 101 - EricTheCarGuy
How To Find Suspension Noises 101 - EricTheCarGuy
http://www.ericthecarguy.com/
This is probably one of the most popular questions that I get so I'm happy to bring you this one because I know it's going to save me some typing. I may have missed a couple of things but I believe I've covered the basics on this one so this video should give you more than enough to start with.
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Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.
How To Find and Repair AC Leaks - EricTheCarGuy
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How To Recharge an AC System: http://www.youtube.com/watch?v=lglPJuBXVeE
Basics of AC: http://www.youtube.com/watch?v=w17DpGCcRj8
AC Performance Test: http://www.youtube.com/watch?v=XU_A4wNuHXI
I suppose this has been a long time coming but for me I wanted to make sure that I made a video that would be useful to you as well as emphasized the importance of good practices when working with AC. Keep in mind refrigerant is a CFC meaning that it pretty much kills the ozone layer and if you don't respect that you WILL cause environmental damage even a little adds up so please follow the precautions in this video when working on an AC system. The other thing about AC is that it involves a lot more than just shooting a can of refrigerant into the system when it's not working right there are many systems that come into play that you need to consider such as; the health of the cooling system, cooling fan operation, the mechanical operation of the components of the system, the operation of the HVAC inside the dash, and the electronics so keep in mind if you're having a problem with your AC it could be much more than just a simple leak. I'll get off my soap box now.
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Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.
Valvoline EGR Cleaner
Valvoline EGR + turbo Cleaner is a blend of selected solvents, carefully formulated to remove deposits on EGR valve and turbo systems. It quickly removes gum, varnish,carbon and dirt.
* Cleans EGR valves and turbo chargers
* Leaves no residue
* Restores engine performance
For more information see: http://www.valvolineeurope.com/english/products/cleaning/cid(580)/egr__67__turbo_cleaner
How to replace an O2 Sensor and save money.
I show you how to replace your O2 Sensor. This is being performed on a 1997 Chevy Tahoe. Automotive oxygen sensors, colloquially known as O2 sensors, make modern electronic fuel injection and emission control possible. They determine if the air fuel ratio exiting a gas-combustion engine is rich (with unburnt fuel vapor) or lean (with excess oxygen).
How To Replace Your Brake Fluid - EricTheCarGuy
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As I said in the video I've been asked about this video for some time and I was happy to get the opportunity to make it. Now that I think about it however I did not address ABS systems in this video however the Subaru used does have ABS. I'll probably make that amendment in a future Re: video. For the most part however this is how I do it ABS or not.
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Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.
LIQUI MOLY Injection Cleaner
For eliminating problems such as starting,difficulties, irregular idling, poor throttle response, performance losses, lean surging,and poor Exhaust values. With a long-term effect lasting 2000 km. When,the product is added, the tank must be at least 3/4 full. 300 ml is sufficient for up to 70 litres of fuel.
How To Replace CV Boots - EricTheCarGuy
How To Replace CV Boots - EricTheCarGuy
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This one is a request from more than one person so I'm happy to bring it to you. As I said in the video I personally don't see much point of replacing just the CV boots anymore as it just makes more sense to replace the axle, that's just how I feel however. If you do want to replace the boots I hope this video will help.
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Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.
