Newbie Service Manual question

[fixkick]

I just found this forum while trying to find an answer to a high idle question on an 1989 Sidekick.  I quickly realized that I need the Factory Service Manual.  An internet search showed me that sellers want an arm and a leg for the 89 Sidekick Manual, and about 13 bucks for the Geo Tracker manual.  Are there enough differences between the Sidekick and the Tracker that I couldn't make do with buying a Tracker manual to help sort out problems on my Sidekick?
Thanks

the FSM for those 2 early years are very rare now, (supply/demand)
the tracker manuals we made in far larger quantities,  huge, really.  and is the same thing, only trim is different made side by side in CAMI plant of canada.

same engine, same trans, same everything mostly,  yes some have different HVAC.

GM took the suzuki book and printed it out in there own words, with some errors. not many in 89. very close.

Gee spend 13 bucks, and see.  you will not be unhappy, the fuse box is different , I thing that is the only  true differance and is minor,  same colored wires and all.


high idle with DTC CEL flashing 12 code (normal is it?) means
vacuum leaks. all vacuum leaks end up at too fast hide,   over 850 RPM , unless the fast idle pin is logically true to ECU? fast idle mode is 920 rpm hot.
high idle hot right, as all are faster cold due to IAC thermal air valve.

vacuum leaks
or
thermostat bad running super cold. 180f is good 150 hard failed. watch out for fail safe thermostats that stick open by design and are bad)
in limphome mode. (not TDC 12 good)
IAC stuck open hot
someone played naughty with idle stop screw. (see willy nilly)

Dash pot stuck extended,  it must retract after about 15 seconds cold or hot started.

cheers and
good luck finding books.  and wait for new postings for lower prices on ebay.

ps
do not forget free books here.

https://geo.pink/?fbclid=IwAR2k4wtqVBZt7...W_iTQmf8Q8