Auto not shifting

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04-10-13, 03:46 AM

bostonspgs

Boston Acoustics SPG555's

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Auto not shifting

87 GSL will not shift up just revs out 1st gear , reverse works fine . Any ideas where to start ?

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04-10-13, 05:02 AM

bostonspgs

Boston Acoustics SPG555's

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87gxl*

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04-10-13, 08:09 AM

misterstyx69

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Quote:

Originally Posted by bostonspgs

87 GSL will not shift up just revs out 1st gear , reverse works fine . Any ideas where to start ?

.Oh!,oh!..I know,I know!..
https://www.rx7club.com/2nd-generati...992-parts-194/
(sorry..It would have been done eventually!).
.......
seriously though,do the Auto Trans have HOLD on them?..to lock the Gear in?.

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04-10-13, 08:12 AM

Sulzener Racing

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Quote:

Originally Posted by bostonspgs

87gxl*

could be electrical problem or its just time to put a 5 speed in there!

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04-10-13, 08:13 AM

bostonspgs

Boston Acoustics SPG555's

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Nice , I have everything I need to swap it over to a manual but I'm trying to figure out how to daily this auto till winter when I drop my s5 tII motor and tranny into it .

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04-10-13, 08:14 AM

bostonspgs

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it's definitely an electric problem but where to look the modulator valve , or in the actual transmission

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04-10-13, 08:23 AM

Sulzener Racing

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Quote:

Originally Posted by bostonspgs

it's definitely an electric problem but where to look the modulator valve , or in the actual transmission

i dont know a whole lot about trans but id have to imagine it would be a modulator valve, solenoid or something along those lines. but i dont know a whole lot about autos

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04-10-13, 09:05 AM

satch

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Vacuum modulator has a vacuum hose to it and it should be bolted on to the driver's side of the transmission.

Mazdatrix has a pic of the item itself.

Last edited by satch; 04-10-13 at 09:24 AM.

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04-10-13, 09:41 AM

Wms10th

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That trans is not electronicly operated, the only electronic part of it is the lock up in the torque converter. 2nd gear engages when the band engages(I think), could be the band or the piston that actuates the band. Either way, it is usually not a simple fix, it will have to be torn down.