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89 toyota van-won't go into overdrive


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01-17-05, 01:30 PM   #1  
fastrepair
89 toyota van-won't go into overdrive

230k miles. replaced transmission relay and the overdrive silinoid on the trans, with used parts from junkyard.
still won't go into o/d.
please help.

 
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01-17-05, 02:41 PM   #2  
First thing to check is the engine temp guage going almost to the middle? Stuck or no thermostat will prevent OD shift.

 
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01-17-05, 04:00 PM   #3  
fastrepair
The temp gage does not reach the mid point. it stays half way between cold and mid point.
should i replace the thermostat?
if so, what temp? 160 or 180?
Thanks Larry

 
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01-17-05, 04:23 PM   #4  
The OEM is 88c which is 190f. That 1/4 of the way on the guage is close to where it should engage OD but might be a little shy.

Proper reading should be about 3/8 or almost 1/2.

 
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01-19-05, 10:31 AM   #5  
fastrepair
thank you, I will replace thermostat next wk-end and i'll post a report.

 
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02-02-05, 01:43 PM   #6  
fastrepair
replaced thermostat

I replaced the thermostat. the temp is close to mid point on the guage.
but still won't go into overdrive.
what else could it be?
is there a temp switch?
thanks

 
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02-07-05, 10:55 AM   #7  
fastrepair
Any ideas? anyone?
thanks

 
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03-08-05, 09:31 PM   #8  
fastrepair
This Site Is Good For Nothing!!!

The "master Tech" Never Answered.

 
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03-08-05, 11:13 PM   #9  
I'm sorry

Why don't you drop it off to my house and I'll fix it for you.

BTW: I did try to help you, it's a little hard when I no longer have any info for a '89 Van. We don't maintain an archive of manuels for all the old stuff.

 
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