22re idle surge

1stgenxxx

1stgenxxx

Well-Known Member
Joined
Dec 19, 2005
Location
Hudson
I can't get my 4runner to idle for shit. It surges violantly. I changed the AFM and it didn't help at all. What else should I try?
 
does it have a iac motor? did u change the battery or take the cables off? i know on mitsu's u have to let the computer relearn the idle after a battery (let it run for like 10mins without ac or anything on)
 
PVC?

Low coolant/air bubles in coolant?

AC Idle control not set properly?

Any one of these will cause it to surge at idle.
Also check the throttle body and make sure it is clean. Then go to the TPS and check the settings. Also the intake boot (by the TB) could be cracked and letting in air. Have you checked the codes?
 
I checked the tube for cracks and didn't come up with any. The coolant is full and I don't think that it has any bubbles in it; However, I will let it run for a little while with the rad cap off and see if it makes a difference. I don't really know how to mess with the ac idle thing. I never have the ac on. I was thinking about ditching but I might as well charge it since I have it. I have one more AFM to try...I hope that is the cause of the problem.

Have I checked the codes??? Nope. The check engine light isn't on so I didn't know that any codes would show up.
 
Turn the idle skrew in 1 full turn on the throttle body and see what it does. I know it sounds nuts but, in order for the IAC to obtain idle speed the apature needs to be set to stall with the IAC closed. The surge is the IAC cycling open and shut looking for idle. If 1 turn doesn't do it, take it another. Do this while its running and you'll find its happy point.
 
thanks for the help. I will try this on Thursday night when change my timming chain.
 
BTW the big screw on top the throttle body is NOT the idle screw. You should not have to adjust anything on the throttle body unless your TPS is out of adjustment. Then you will have to reset the TPS and the idle screw with feeler gauges.
 
it started running fine all of the sudden....hmmm...engine swap next week:bling:
 
I allready have another 22re..should provide the power that I need.
 
I'm going to put a timming chain on it and sell it.
 
kustomkhaos said:
BTW the big screw on top the throttle body is NOT the idle screw. You should not have to adjust anything on the throttle body unless your TPS is out of adjustment. Then you will have to reset the TPS and the idle screw with feeler gauges.
Click to expand...

Bullshit, the 22re t-body has a idle air bypass screw on the top, r/h corner. You're refering to the plate stop to prevent the plate from sticking closed. Thats on the side where the mechanical linkage is. :flipoff2:


Moot point anyway, he gots it running for now. :lol: :beer:
 
Ratman said:
Bullshit, the 22re t-body has a idle air bypass screw on the top, r/h corner. You're refering to the plate stop to prevent the plate from sticking closed. Thats on the side where the mechanical linkage is. :flipoff2:
Moot point anyway, he gots it running for now. :lol: :beer:
Click to expand...

I will have to point that out to TOYOTA the next time I am in there training class. I will be sure to let them know they have been teaching me wrong for 15 yrs. :shaking:
 
kustomkhaos said:
I will have to point that out to TOYOTA the next time I am in there training class. I will be sure to let them know they have been teaching me wrong for 15 yrs. :shaking:
Click to expand...

Yes, you should.:flipoff2:
Joe is correct.

Quoted from the '89 Factory Service Manual, straight from Toyota. Page MA-9 under the MAINTANANCE section
subsection 16. "Adjust Idle Speed":
(c) Race the engine at 2500 rpm for aprox. 2 minutes.
(d) Set the idle speed by turning the idle speed adjusting screw.

Beside it there's a picture of a screwdriver on the screw in question. I'd scan it if I weren't so lazy.
 
You guys should read alittle more before looking at the pictures. You can change the idle by turning that screw, hell you can change the idle by advancing your timing doesn't mean that is right the way to do it. There are steps that should be taken to make sure everything is in proper adjustment before you start turning this screw. You guys should know how to diagnose the problem before you try giving out the wrong info. BTW your in the wrong section of the book.
 
Dude, I know what yer saying.
This is directly out of the FSM under maintanance. It is Toyota's directions for how to set the idle. they also make reference to the same procedure (and section) after cylinder head work, timing chain replacement, etc.
Yes, of course there are things you have to check first, that's right in the same section. Turn off all accessories, hook up you tach with the engine off, yada yada. And if you have some other problem, this will not fix it.
But that isn't the question here.
If somebody asks me, "How do you adjust the idle?" The answer is "use the idle adjustment screw." That's what it's for, according to the FSM.
 
Put down the FSM and take 2 steps back, we are here to help you.
This manual worked great in 1989, on a 1989 toyota 22re.
We are working on a 85 22re where not very differant all around it is alot older and more worn. There is a differance in the vacume dash pot between the 2. (not saying that was the problem)
There is alot of adjustments in your FSM that just don't work on a older toyota even a 89 with a few good miles on it. For instance try setting your valves at the recommended adjustment to get rid of that pesty valve tick. 9 times out of 10 you will go back and snug them down alittle tighter. In the 15 years I have been working on toyota's I have learned the tricks that make these things run like clock work. I have delt with hundreds of 22re's that people have tried turning this screw to fix idle problems. Turning this screw did not fix any of them only served as a band-aid.
The problem he had was surging rapidly
 
Woah man, hold on. I think we're talking past each other, chill out for a moment.
I'm not trying to say that adjusting the idle screw will fix thsi problem! Clearly that is NOT a solution for any real problem, it's just an adjustment.
We (like how I'm dragging Ratman back into it?) were just pointing out a disagreement with what you said, that the screw in the TB isn't for adjusting the idle.
It IS for adjusting the idle. That's why Toyota calls it the "idle adjustment screw".
Will it magically fix problem causing high/low idle? NO. *Of course* you do this at the end, and it is not the solution to the probelm Jeff originally posted.
 
wow I'm havin the same problem on a different truck.....I found this old thread on google frin 3 years ago
 
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