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Cold start/idle Issue!
#11
usually if the IAC is bad, and engine hot the rpms are over 2000 rpm. hot.
but some IAC can be only just a little bad. say fails to close 100% at 180F and leaks just tiny bit of air,.
only testing it finds the truth even in a pan of hot water, 150F it will be 100% closes and for double sure 180F/
http://www.fixkick.com
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#12
[quote='fixkick' pid='11593' dateline='1555943436']
usually if the IAC is bad, and engine hot the rpms are over 2000 rpm. hot.
but some IAC can be only just a little bad. say fails to close 100% at 180F and leaks just tiny bit of air,.
only testing it finds the truth even in a pan of hot water, 150F it will be 100% closes and for double sure 180F/
[/quote

I’m thinking you are correct with the assumption that it could be just not be closing completely all the way. I’m actually curious to try the clay test and see what happens.. I’m also gonna pull the thermostat because the guy I bought it from said he changed it but who knows he may have put it in wrong.
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#13
thermostat wax side down and bleed hole forward (jiggle pin) so it can self burp.
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#14
(04-23-2019, 04:05 AM)fixkick Wrote: thermostat wax side down and bleed hole forward (jiggle pin) so it can self burp.

Thanks I will make sure that’s the way it’s installed
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#15
good luck to you and your lil, kick-a-roo.
http://www.fixkick.com
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#16
Question about "the gasket trick"............Is the TBI base gasket supposed to be solid at all times or just for the troubleshooting steps you're describing? I have a 90 Tracker, 5spd, 4WD. I usually have to cut out the arch in your picture (red arrows) whenever I replace the gasket (not sure why they don't come pre-cut) but I wasn't sure about the holes.
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#17
(12-24-2019, 08:22 AM)JCTracker Wrote: Question about "the gasket trick"............Is the TBI base gasket supposed to be solid at all times or just for the troubleshooting steps you're describing? I have a 90 Tracker, 5spd, 4WD. I usually have to cut out the arch in your picture (red arrows) whenever I replace the gasket (not sure why they don't come pre-cut) but I wasn't sure about the holes.

The 3sp auto  car has base electric heater that is why so many odd gaskets. seen in the top sold kits for this.
what matters is the 3 holes (called drilling must be blocked.

the arced slot only needs one hole to to work


off my TB slide show and more.  , but this tells all you need,  x5 blocks, must be, slot open  fully or any place in that path or vacuum devices go dead.
H2O hole
IAC hole air.

and the fly  hole.
[Image: 90-TB-bottom1.jpg]
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