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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

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Old 11-24-2008, 11:51 AM   #1 (permalink)
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Problem with long cranking/starting now that it's cold outside...any help?

Recently,about a month ago. Here in Pennsylvania the temp. started to get rather cold outside. Since this temp. change,my Yota 4runner (3.0) has been taking a lot longer to start. Long cranking before it fires. Long cranking as in almost a full minute. After about 30 seconds,it starts chugging(trying to fire,then it fires. When it finally does start it stumbles a bit for a few sec's,then hi idles fine and from their on it runs and starts fine.
It's always the 1st fire of the day,no matter what time of the day,it does this. I changed the fuel filter a few days ago,the starter is new 1 month ago. The battery tested fine ad is cranking strong. Just takes forever before it fires.
If tried turing the key on just to the run posoition several times,"thinking" it needs primed more,but doesn't help any.
Is their some sort of sensor somewhere that tells the brain box it's colder out and to supply more fuel,that might be not working proprly?
Is their something I'm missing?
Doesn't matter if it's below freezing or not. It's done this ,long crank even when it was around 40-45 degreees out.
I've owned the rig 5 years now and this is the first it's ever done this.
I hope to solve this soon,before it either kills the battery or wipes out my new starter.
Any help is greatly appreciated. Thanx all!
Dutch
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1990 4runner SR5 3.0 (3vz-e) All options. Bone stock. Automatic w/overdrive and cruise control. 237,000 miles. Oil pump replaced @ 186,000,head gaskets at 188,000. 15-17mpg.
My girls.Lisse' & Jessi
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Old 11-24-2008, 11:56 AM   #2 (permalink)
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Check your Cold Start Injector, and the Cold Start Injector Time Switch. Had this problem on my old '91 v6 truck
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Old 11-24-2008, 11:59 AM   #3 (permalink)
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Wow...40-45 degrees? Thats warm for it to not want to start! My 22re takes like 30 seconds to start from sitting over night if its below 0. Maybe try a different oil viscosity? Like 0x-30 instead of 5w-30. maybe invest in an oil pan and block heater? Perhaps the cold start injector isn't spraying enough fuel...? Just throwing ideas out there...
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'95 4runner|22re|5spd|157K miles| 2" BL| 33x12.5 m/t |anti-sway bars removed f/r| Warn manual hubs| PaceSetter header| 2.25" exhaust| Custom front bumper, 4xInno sliders|Rebuilt engine| Sold
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Old 11-24-2008, 12:23 PM   #4 (permalink)
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Cold Start Injeector. That was mentioned to me a few days ago as well. Now for the tricky question?
Where is it on the 3vze engine? Might you know "a4runnerfreak"?
Along with the Cold Start Injector Time Switch location? I don't mean to sound like a newb,but Cold Start Injector and it Time switch are all new to me.
Dutch
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1990 4runner SR5 3.0 (3vz-e) All options. Bone stock. Automatic w/overdrive and cruise control. 237,000 miles. Oil pump replaced @ 186,000,head gaskets at 188,000. 15-17mpg.
My girls.Lisse' & Jessi
http://i293.photobucket.com/albums/m...SC00714200.jpg
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Old 11-24-2008, 12:37 PM   #5 (permalink)
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not sure of switch location but the cold start is on the passenger side of the upper intake and has a metal fuel line going to it Kinda in the middle. It has a plug that looks like an injector connector....hope this helps
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Old 11-24-2008, 12:46 PM   #6 (permalink)
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It's where 1styota said, just above where the EGR pipe bolts to the intake. Thats the CSI. As for the time switch, it is on the backside of the engine, on the left side (near the firewall) next to the Water Temp Switch. There are only 2 switches there, right next to each other. The switch closer to the passenger side of the engine bay is the CSI Time switch.
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Now if he has broken the law, then he should spanked on his flabby pink bottom in public by oompa loompas.
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tony! where have you been all my life?


------------------------------------------------------
1991 Toyota 4Runner SR5 4x4, 3.0 V6, Auto <---R.I.P

NEW!!!
1994 4Runner SR5 V6, 3.0 V6 Auto, Sony XPLOD CDX-GT540 UI, 31x10.5's, *4.88's*

Last edited by a4runnerfreak; 11-24-2008 at 01:01 PM.
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Old 11-24-2008, 12:50 PM   #7 (permalink)
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Im in the process of the download now. if I cant find or figure it out. I'll get back to ya and ask ya to scan for me,but lemme see how I make out with the download. Thanx for the tip!
:>)
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1990 4runner SR5 3.0 (3vz-e) All options. Bone stock. Automatic w/overdrive and cruise control. 237,000 miles. Oil pump replaced @ 186,000,head gaskets at 188,000. 15-17mpg.
My girls.Lisse' & Jessi
http://i293.photobucket.com/albums/m...SC00714200.jpg
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Old 11-24-2008, 01:02 PM   #8 (permalink)
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cold start injector:
http://personal.utulsa.edu/~nathan-b...88coldstar.pdf
cold start injector time switch:
http://personal.utulsa.edu/~nathan-b...ne/97colds.pdf
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Old 11-24-2008, 01:15 PM   #9 (permalink)
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Thanks Abe. I scanned the location from my FSM anyways....the red line shows the CSI Time Switch
Click the image to open in full size.
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Now if he has broken the law, then he should spanked on his flabby pink bottom in public by oompa loompas.
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tony! where have you been all my life?


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1991 Toyota 4Runner SR5 4x4, 3.0 V6, Auto <---R.I.P

NEW!!!
1994 4Runner SR5 V6, 3.0 V6 Auto, Sony XPLOD CDX-GT540 UI, 31x10.5's, *4.88's*
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Old 11-24-2008, 01:22 PM   #10 (permalink)
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Thanx abe...
Abe...the diagrams you linked,are they for the 1990 3vze? Just double checkin...

SOMETHING I FORGOT TO MENTION...I recently bypassed my ignition switch,to a starter button,direct to the battery and to the starter.
Could this be a reason why Im having cold start problems? I noticed in the diagram that abe linked,it shows the cold start injetcor and time switch wired in with the ignition switch. That's what reminded me of the ignition switch bypass.
Reason for the bypass was,the switch "we think" went bad as I was having to jump my rig constantly,before and after a starter replacement. Figured a push button switch was cheaper than the ignition switch.
If this is the case,of my cold start problem...would I be correct in thinking that if I just replace the original key ignition switch,my cold start problem would go away and return to normal starting?

Now that I think about it,the cold start issue came about right after the starter button install.

???
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1990 4runner SR5 3.0 (3vz-e) All options. Bone stock. Automatic w/overdrive and cruise control. 237,000 miles. Oil pump replaced @ 186,000,head gaskets at 188,000. 15-17mpg.
My girls.Lisse' & Jessi
http://i293.photobucket.com/albums/m...SC00714200.jpg
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Old 11-24-2008, 01:24 PM   #11 (permalink)
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actually a 93, but the test procedures are the same.

and absolutely your ignition switch mod is probably the cause.
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Old 11-24-2008, 01:25 PM   #12 (permalink)
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if you check the starter wire for voltage when you turn the key, and get it, then you may be able to wire in a relay that the key triggers, then have the relay apply battery voltage to the starter. alternatively, you may be able to wire your pushbutton to the ignition switch wiring that you've bypassed... applying voltage through the 'back-door' so to speak.
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Old 11-24-2008, 02:00 PM   #13 (permalink)
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Ok...makes sense. Im gonna price a new key switch.
To be continued...
Thank you for your knowledge!!!
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1990 4runner SR5 3.0 (3vz-e) All options. Bone stock. Automatic w/overdrive and cruise control. 237,000 miles. Oil pump replaced @ 186,000,head gaskets at 188,000. 15-17mpg.
My girls.Lisse' & Jessi
http://i293.photobucket.com/albums/m...SC00714200.jpg
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Old 11-24-2008, 02:08 PM   #14 (permalink)
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Duh! I forgot all 'bout your previous ignition problems, and that you were going to try that suggestion. Ok, feel dumb now, gonna go sit in a corner........lol
thanks for showin me up, Abe
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Wheel IFS. Wheel SAS. Wheel your big wheel. Just wheel.
Quote:
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Now if he has broken the law, then he should spanked on his flabby pink bottom in public by oompa loompas.
Quote:
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tony! where have you been all my life?


------------------------------------------------------
1991 Toyota 4Runner SR5 4x4, 3.0 V6, Auto <---R.I.P

NEW!!!
1994 4Runner SR5 V6, 3.0 V6 Auto, Sony XPLOD CDX-GT540 UI, 31x10.5's, *4.88's*
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Old 11-25-2008, 09:05 PM   #15 (permalink)
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Cold starting...

See thread "Cold start 1991 P/U" on previous page (likek page 3), your problem is pretty common, especially now that it's getting colder outside.
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Old 11-25-2008, 09:05 PM
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1990, 1992, 22re, 30, injector, location, problems, start, starting, switch, time, toyota, truck, v6, warm

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