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1996 Toyota 4Runner ERACTIC IDLE

Tiny
RICHARD MAYO
  • MEMBER
  • 1996 TOYOTA 4RUNNER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 185,000 MILES
MY 96 TOYOTA 4 RUNNER WHILE START TO REV UP TO 1500 TO 2000 RPM AT IDLE. WHEN THIS HAPPENS IF I CUT IT OFF IT IS HARD TO START. I HAVE REPLACED IDLE AIR VALVE AND PROBLEM IS STILL THERE. IT ALSO SEEMS TO REV UP AND DOWN SOMETIMES
Tuesday, March 2nd, 2010 AT 3:11 PM

7 Replies

Tiny
RICHARD MAYO
  • MEMBER
  • 4 POSTS
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Wednesday, March 3rd, 2010 AT 10:56 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi RICHARD MAYO, Welcome to 2carpros and TY for the donation this is what keeps us going

Do you have a check engine light On and when was the last tune-up?

Check and test the EGR valve, throttle position sensor, mass airflow meter and also for vacuum leaks to include a fuel pressure check-
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Wednesday, March 3rd, 2010 AT 12:03 PM
Tiny
RICHARD MAYO
  • MEMBER
  • 4 POSTS
I replaced mass air flow meter yesterday and it seems to be running okay at this time. When the problem orignally occured it was extremely cold. The temperature is a lot warmer now. I wonder if the temperature could effect this problem
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Wednesday, March 3rd, 2010 AT 12:15 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the coolant temperature sensor and also the cold start injector
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Wednesday, March 3rd, 2010 AT 12:17 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Yes temp could be contributing ohm check Engine Coolant Temp sensor top rear of engine. see chart


https://www.2carpros.com/forum/automotive_pictures/198357_Graphic_371.jpg

ECT has Brown/Black and Green/Yellow wires
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Wednesday, March 3rd, 2010 AT 12:26 PM
Tiny
RICHARD MAYO
  • MEMBER
  • 4 POSTS
I DONT HAVE A CHECK ENGINE LIGHT ON. BUT I GUESS BASED UPON THE AGE THAT SENSOR COULD POSSIBLY BE BAD. WILL CHECK RESISTANCE
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Wednesday, March 3rd, 2010 AT 1:14 PM
Tiny
2 LINSEY
  • MECHANIC
  • 287 POSTS
Hi, Thank you for using 2CarPros. Com. We appreciate your donation and look forward to helping you in the future.
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Friday, March 5th, 2010 AT 3:27 PM

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