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 motor swap and now auto trans won't kickdown to passing gear
#689740
01/26/06 01:13 AM
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Anonymous
Unregistered
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had a friend swap an 89 4runner motor to my 87 4runner. both are automatic. he is not familiar with auto trans. now trans won't down shift to passing gear. also, it seems to shift too quick when accelorating. we think that it may be a linkage or elec. problem. any help would be appreciated
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 Re: motor swap and now auto trans won't kickdown to passing gear
#689741
01/26/06 04:56 AM
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Joined: Jan 2001
Posts: 11,595
Forum Moderator
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 Re: motor swap and now auto trans won't kickdown to passing gear
[Re: Adam F]
#689742
01/26/06 06:56 AM
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Anonymous
Unregistered
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thank you for the reply. i will check it out tomorrow downloaded the 85 fsn and got all the info. hope it will help <img src="/forums/images/graemlins/patriot.gif" alt="" />
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Re: motor swap and now auto trans won't kickdown to passing gear
#689743
01/26/06 03:45 PM
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Joined: Sep 2002
Posts: 1,878
Body Damage is Cool
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Did you use the 89 ECU and the 89 tranny or the 87 ECU with the 89 tranny or the 87 ECU with the 87 tranny or...?
93 4X4 ext-cab, auto, SR5, 3.4 V6, supercharged, 2.1" pulley, URD fuel mods, Aquamist WI, IPT valve body mod, dual cases, 4" superlift, Alcan springs, 33 BFG MT, ARB locked front & rear, 5.29 US Gears, RB 1" BL, 1.5" BJ spacers, TJM T-17, Warn m8000.
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Re: motor swap and now auto trans won't kickdown to passing gear
[Re: mt_goat]
#689744
01/27/06 09:10 PM
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Anonymous
Unregistered
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we used the 87 ECU with the 87 trannny is that a problem? thanx <img src="/forums/images/graemlins/patriot.gif" alt="" />
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Re: motor swap and now auto trans won't kickdown to passing gear
#689745
01/28/06 04:42 AM
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Joined: Sep 2002
Posts: 1,878
Body Damage is Cool
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Well it would be a place to start trouble shooting. It would be best to use the ECU, engine and tranny (especially an auto) from the same year. I'd look into whether or not anything changed from 87 to 89. If nothing else maybe a sensor or wiring change.
93 4X4 ext-cab, auto, SR5, 3.4 V6, supercharged, 2.1" pulley, URD fuel mods, Aquamist WI, IPT valve body mod, dual cases, 4" superlift, Alcan springs, 33 BFG MT, ARB locked front & rear, 5.29 US Gears, RB 1" BL, 1.5" BJ spacers, TJM T-17, Warn m8000.
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Re: motor swap and now auto trans won't kickdown to passing gear
[Re: mt_goat]
#689746
01/28/06 06:58 AM
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Joined: Nov 2004
Posts: 12
Need a Spot
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Don't forget about the tv cable adjustment. This being missadjusted could cause all those problems.
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Re: motor swap and now auto trans won't kickdown to passing gear
[Re: mt_goat]
#689747
01/29/06 05:51 PM
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Anonymous
Unregistered
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thank you! i am pulling the tranny and many other parts from the 89. i may have to put the new tranny in the 87. anyway, the 89 only has 116k and the 87 has 212K. the throtle postion sensor was bad and the mechanic put a brand new one on. my friend looked at it yesterday and when i told him it was changed, he said that it has to be that adjustment, because it is sending the wrong info to the ecu. i will let you know what happens. thanx!!!! <img src="/forums/images/graemlins/patriot.gif" alt="" />
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Re: motor swap and now auto trans won't kickdown to passing gear
[Re: Manson]
#689748
01/30/06 02:40 AM
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Anonymous
Unregistered
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problem solved!!! we adjusted the throtle position sensor and now we have kick-down throtle position sensor was adjusted in the wrong direction. thanx to all who replied. <img src="/forums/images/graemlins/kewl.gif" alt="" />
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