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Stalls at idle

Tiny
ROBETEARL
  • MEMBER
  • 2002 TOYOTA AVALON
We just finished a 500 mile trip driving in rain and snow from Lubbock Texas to the Houston area and got up the next morning and the Avalon will not stay running after it starts, It will not start without giving it some accelerator. The engine sounds good while accelerated but as soon as you let off it dies. Yesterday it ran like a champ.
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Monday, November 26th, 2007 AT 8:05 AM

11 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hello,

The problem is the IAC needs to be cleaned here is a video to help you

https://youtu.be/XMB16Gg-qNg

Also do the throttle bore as well

https://www.2carpros.com/articles/throttle-actuator-service

Please run down these guides and report back.

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Monday, December 3rd, 2007 AT 3:27 PM
Tiny
OIDAVEY
  • MEMBER
  • 0 POST
I had this problem and had to clean the throttle bore worked great! I love this site.
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Thursday, June 27th, 2019 AT 2:59 PM
Tiny
LARRY PORE
  • MEMBER
  • 3 POSTS
  • 2002 TOYOTA AVALON
  • 76,000 MILES
Twice in the last few months, when my car is cold, I start the engine and it will not idle. I keep trying to start the engine. I finally hold the accelerator down at about 1500 rpms for a few seconds and the car does fine. The car will start and no further problems have occurred. I did limited research online. Comments posted indicate the problem may be the coolant sensor (ECT). I thought I would change the sensor, however, I need a diagram or some instructions on first how to locate the ECT and the how to replace it. Thank you in advance for your help.
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Saturday, June 29th, 2019 AT 4:18 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
This looks more like a fault with the IAC rather than the ECT. Try cleaning the IAC and throttle body first.

ECT is located on water outlet, top right front of engine, item # 29.
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Saturday, June 29th, 2019 AT 4:18 PM (Merged)
Tiny
DJCL
  • MECHANIC
  • 767 POSTS
When its not startig try taping on the idle air controle motor. Its under the throtle body. There known to stick when the engine is cold. If it runs after taping it replace or clean it
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Saturday, June 29th, 2019 AT 4:18 PM (Merged)
Tiny
DENNIS_MONSTER
  • MEMBER
  • 2 POSTS
  • 2002 TOYOTA AVALON
  • 109,000 MILES
My 02 Toyota Avalon, will crank but not stay running, hooked it up to the tester, but nothing, thought the tester may be bad, so hooked it up to other cars and the tester is fine, my? Is why is the tester not connecting to the computer?
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Saturday, June 29th, 2019 AT 4:18 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Either the tester is not compatible with your vehicle, you have a missing power suply or the ECM (or its wiring circuit) is faulty.
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Saturday, June 29th, 2019 AT 4:18 PM (Merged)
Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,542 POSTS
  • 2001 TOYOTA AVALON
  • 180,000 MILES
The car won't idle. It's turns, but won't stay running. Could it be the idle control valve, and how difficult is that to replace or clean?
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Saturday, June 29th, 2019 AT 4:18 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
No cleaning only replace if it is bad.

Is the check engine light on?

Roy
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Saturday, June 29th, 2019 AT 4:18 PM (Merged)
Tiny
BETTY FERRO
  • MEMBER
  • 1 POST
Engine light was on for a couple of years, finally a sensor was replaced and 6 th gas cap as recommendated by dealer mechanics, but, nothing showed up on the
diagnostic test regarding idle shut down issue. The comment was when they
started the car, the problem did not exist? Now it is prominent more than ever?
Driving with foot on brake and gas, is only way I can keep the car moving, dangerous.
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Saturday, June 29th, 2019 AT 4:18 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The issue is with todays technicians is they rely on a code to tell them there is a problem. That is not the case. Good old fashion diagnostics has to be done to find this.

Do you have a scan tool that can read live data from the computer?

Roy
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Saturday, June 29th, 2019 AT 4:18 PM (Merged)

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