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How to Replace Idle Air Control Valve 1996-2000 Chevy Tahoe
How to Replace Idle Air Control Valve 1996-99 GMC K1500
Created on:
Tools used
Socket Extensions
T20 Driver
Ratchet
1. Removing the Idle Air Control Valve (IACV)
Disconnect the Idle Air Control Valve wiring harness
Remove the two T20 Torx bolts from the IACV
Pull off the IACV
2. Installing the New IACV
Push the new IACV into place
Insert the two T20 bolts into the IACV
Connect the IACV wiring harness
Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.
Hi, I'm Don from 1A Auto. I hope this how-to video helps you out, and next time you need parts for your vehicle, think of 1AAuto.com. Thanks.
In this video, we're going to show you how to replace the idle air control valve on this 1996 Chevy Tahoe. It's the same part and process on these Tahoes from 1996 to 2000. The items you'll need for this are a new idle air control valve from 1AAuto.com and a T20 Torx bit and ratchet with an extension.
Your idle air control valve is located right here. You want to just pull back on the tab and then remove that harness, and then remove these two T20 Torx bolts. We'll just fast forward as Don does that. Now you can just pull it right out.
On the left, is the old idle air control valve. On the right, is the new one from 1A Auto. You can see they're identical and they'll mount exactly the same. Now, push your new idle air control valve into place and then replace those two T20 Torx bolts. You can see he just replaces the bolts by hand and then tightens them up with that bit and ratchet. Reconnect the harness and you're all set.
We hope this video helps you out. Brought to you by www.1AAuto.com, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.
Tools used
T20 Driver
1. Removing the Air Intake
Lift the latches and remove the upper portion of the air box
Unplug the intake air temp and MAF sensors
Disconnect the breather hose
Undo the thumbscrew
Remove the intake
2. Removing the Idle Air Control Valve
Remove the electrical connector
Remove the two T20 Torx bolts
Remove the control valve
3. Installing the Idle Air Control Valve
Insert the control valve into place
Tighten the two T20 Torx bolts
Connect the connector
4. Installing the Air Intake
Reinstall the intake tab by hooking the tab over the throttle body and setting the back into place
Reinstall the tumb screw
Reconnect the MAF and intake temp sensors
Place the air box lid into place
Clasp the tabs
Connect the breather line
Hi, I'm Mike from 1AAuto. We've been selling auto parts for over 30 years! We're dedicated to delivering quality auto parts, expert customer service, and fast and free shipping, all backed by our 100% satisfaction guarantee. So visit us at 1AAuto.com, your trusted source for quality auto parts. In this video, we're going to be working with our 1996 GMC Sierra. We're going to show you how to remove and replace your idle air control valve or IAC on a 5.7l V8.
If you like this video, please click subscribe. We have a ton more information on this and many other vehicles. If you need parts for your truck, you can follow the link down in the description over to 1aauto.com.
Here are the items you'll need for this repair.
Lift up on the latches and remove the upper portion of air box. Unplug the intake air tab and mass airflow sensors. Pop the breather line off and undo the thumb screw. Rock the upper part of the intake forward and remove it from the vehicle. Your IAC or idle air control valve is located on the back of the throttle body on the driver's side. This is a little electronically actuated solenoid that changes the amount of airflow allowed to pass the throttle body for when your foot is off the throttle and the blade is closed. To replace this, we'll remove the electrical connector. You can then remove the two T20 Torx bolts with a Torx bit and a ratchet. Once the bottom bolt is loose, you can remove your idle air control valve.
Now that it's out, you can see where that bottom bolt hole is that sits in there kind of like this angle and it's pretty tricky to see that one once it's in the car, so you just got to feel around for it.
Reinstall the idle air control valve and start the T20 Torx bolts. Once the bolts are started, you can tighten them down with your T20 Torx bit and the ratchet. Reconnect your electrical connector.
Reinstall the intake tube by hooking the tab over the front of the throttle body and setting them back into place. Reinstall the thumb screw onto the stud. Reinstall the tube into the filter as well as locking into the back of the air box. Reconnect your mass airflow and intake air temp sensors. Drop the lid back into place. Secure the tabs. Install the breather line and you're good to go.
Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.
Product Reviews
Loading reviews
3.96/ 5.027
27 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
18
2
0
2
5
unstable part
Clint
March 11, 2017
The idle air control vavle would idle high then low with no consistency.
It would also make my truck hard to start. The truck shutdown on me
A few times since the idle air control valve was installed. I clean the old
Valve and reinstalled it. My truck started and ran without any problems...
Love 1A Auto. I refer everyone..
Adam
April 23, 2017
I Have been working on cars, trucks, vans, etc. Someone told me about 1A Auto. Prices are my favorite. Their products are excellent! The only reason I would go to a competitor would be for an immediate Item needed. The shipping is fast, but not immediate. Thanks for affordable products.
Owner
P
November 27, 2018
Worked excellent, truck running perfect. Couldnt find part any where
Astro van fast idle
Stephen
December 11, 2018
Air idle control valve did the trick. No more fast idle no more ses light. Price better than other options for same quality and shipping was fast.
Good part good price
T
February 7, 2019
Saved alot of money over dealer and quality is same. Immediately solved issue have had no problems with part at all.
Awesome
M
March 10, 2019
Cheap price for quality parts and fast shipping
My part was on time
B
March 23, 2019
I simply ordered my part. I was told it would be at lease a business week. It was and, it came, perfect!!
Mechanic uses these parts for his car
Michael
April 1, 2019
Installed in my own car use what I buy no other brand for me
Air control valve
Roger
July 15, 2019
Recieved part fast, in good shape . Was easy to install and works good.
1998 gmc idle air sensor
donald
August 26, 2019
The part came undamaged and was the write part
Much needed
James
November 10, 2019
This part had my throttle body running like brand new and it was so cool watching the easy video and I loved how they tell you the tools you need ahead
Quality part at a great price
R
January 1, 2020
The iac I ordered from 1aauto did the job on fixing my fluctuating idle issue. Much cheaper than at the parts store, I would definitely recommend this
Syed
January 8, 2020
fit perfect. very fast shipping. thanks
Working great
John
January 28, 2020
I purchased the idle air control valve for my 98 GMC Yukon which at startup my gmc would run at 1800 rpm then when warmed up it would idle at 1200 rpm and was sticking at high idle so I replaced the valve and it starts every morning and runs at 1000 rpm till warmed up then it stays at 800 rpm definitely fixed my high idle issue
Idle issues
Sean
March 29, 2020
Got the part fast had a bit of a will issue an this fixed it
Idle control valve
R
April 7, 2020
The item does not work at all.
Fast idle
John
May 7, 2021
Received. Fit. Works. Couldn't ask for more.
96 Silverado renew
Al
February 21, 2022
It works as advertised
Idle air valve
Douglas
March 7, 2022
Hey it didnt work for truck idles worse than before and I am buying ac Delco from now on cleaned my old one out with brake cleaner and works grest
Outstanding!
Rodrigo
March 25, 2023
This worked great for truck!
Rocco
February 14, 2024
Made my 2005 blazer zr2 idle at 1600rpm after I put it in gear
Great product.
Lasse
March 9, 2024
As described. Worked as it should.
Part
Carl
March 9, 2024
It works has it should no problems
JUNK
Mark
April 21, 2024
I bought this part figuring replacing it with a new one would be better than cleaning the old one. The problem that I was having got way worse with the new one. After trouble shooting the truck for two days I cleaned the old one and put it back in all my problems went away. Now runs like new!
Maybe I got a bad one
Justin
June 19, 2024
Failed after 3 days
Scott
September 10, 2024
Made my truck idle very high. Wouldn't recommend
Good
nasim
November 9, 2024
Beautiful performance
Customer Q&A
How do the new style injectors come out of the injector ports? 1998 s10 4.3 literOctober 31, 2020
David C
Does the idle air control come with new screws?May 24, 2022
Randy L
10
New hardware is not included with this item. You may be able to reuse your original hardware if it is in good condition.
May 24, 2022
Emma F
Customer service
877-844-3393
Monday - Friday 8:00am - 9:30pm ET Saturday - Sunday 8:00am - 4:30pm ET
Isuzu is a registered trademark of Isuzu Motors Ltd. 1A Auto is not affiliated with or sponsored by Isuzu or Isuzu Motors Ltd.See all trademarks.
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