DanStew

I searched for the adjustment on my 22re. One thread there was pics but since it was old, the pics are not available. I am looking to see what adjustment I have to turn to knock down my cold idle to a reasonable level. I know some do go up to 2k normally but i want it lower since it is a new rebuilt motor and it is just too high of RPMs for me. It is an 1989 22re.

thook

Does it idle normal once it warms up?

You can adjust the idle bypass screw on the throttle body, but that will also affect the warm curb idle. Just turn the large, flat head screw on the TB clockwise until the idles slows to where you want it.

DanStew

Yeah the warm idle is fine, it just idles faster than i want for cold weather. I still have to adjust valves, and not sure if that will calm it down, but i am uncomfortable with it running like that in the morning.

abecedarian

If you've got the idle-air valve separate from the throttle body, you could machine some type of restrictor out of brass or stainless and insert it into the line that connects to the bottom of the throttle body to limit the total flow.

Flash319

Ya you can't do much for the cold idle. Wide open cold (-30C outside) will give about 2500 rpm. The lowest mine have ever been is 1500rpm when it is hot outside (20+ C). After about 2 min it settles down to 8-900.

TOYOTA 1

dang i was just wondering this my self lol.

my cold idle is a lil high for my liking, but warm idle is great!

oh well

BoostedRNR

I wish mine idled a little high. Mine barely idles when cold and idles a little high when warm. I've been searching for a way to adjust my cold idle, but I haven't found anything either.

captaincaveman

you might try plugging in your block heater if your truck has a working one? the warmer block would atleast reduce your cold start ( warm-up) time, that would help a bit

abecedarian

Really, Cap't? You joined in October 2011, made your first post around 5 months later: in February 2012; you chose to reply to a thread which had its last reply in March, 2009... more than two years before you joined?

captaincaveman

lol apperently i wasnt looking at the date just the information, i"ll pay attention next time thx!

Buck87

Still, a block heater is a good idea. Does anyone have one?

abecedarian

hey, it's not really a problem, so to speak, but if the last post in the thread is over a year old, it's fairly safe to ignore it. It was either fixed or somehow moved into another thread, or maybe the vehicle got sold. I don't know; just a suggestion.

Buck87

Abecedarian,
I always enjoy your posts and you observation on the age of this one was right on. I have revived old threads before when I found a solution, so that the next guy who searches and reads it will have an answer. Since I live in a warm climate I learned something from this thread that I was not aware of.
Captaincaveman,
Good job on searching first and not commenting unless you feel you have something worthwhile to add.

captaincaveman

we have to use them up here once in awhile, i live in Sarnia, Ontaio, Canada it's not way north but it can get cold, but i can sympathize with DanStew 1700-2000 rpm cold is a bit rough on a fresh rebuild! those block heaters are handy on those really cold nights, if your worried about power consumption i dont think they draw much at all but you could always throw it on a 2 or 3hr timer just before you wake up? Thanks! fellas or ladies if any? lol

abecedarian

1700-2000 when really cold is about right. The most important things are that the oil is rated for the temp and the oil pressure is correct. If it warms up fine, idles down to spec, the timing is correct, and it drives okay while that happens, there's not much else to do with it.


The primary purpose of the block heaters is to keep the coolant from freezing, which will pop out freeze plugs, thus coolant will dump out when the engine runs. Beyond that, not having to wait so long for the coolant to warm up and blow hot air out the vents is a bonus. The coolant will convect (circulate), to a small extent, with a block heater installed- leaving the heater temp control on hot could help.


Anyhow, sometimes it's nice to see information pop up at random intervals.