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  #1  
Old 09-30-2008, 07:48 PM
jdrobbins jdrobbins is offline
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97 Blazer Transmission problems

Ok, Hopefully my last problem.

Just replaced engine, up and running fine now but the transmission will not go into gear. Did not remove transmission.

Linkage is moving
Fluid level is full
Vacuum line is hooked up

Thanks for the help so far.
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Old 09-30-2008, 08:50 PM
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Re: 97 Blazer Transmission problems

Remove the inspection plate on the bottom, and see if the Torque converter is spinning.
Did you bolt the converter to the flex plate/fly wheel?
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Old 09-30-2008, 08:58 PM
jdrobbins jdrobbins is offline
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Re: 97 Blazer Transmission problems

Yes I did
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Old 10-01-2008, 05:56 PM
jdrobbins jdrobbins is offline
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Re: 97 Blazer Transmission problems

Did some checking here is what I found.

Torque convertor IS bolted on and turning.
All vacuum lines are hooked up (traced to make sure).
All wiring is attached (was never disconnected but I did trace to make sure)
Linkage is hooked up and moving (disconnected and tried to manually shift into gear and nothing)
TPS seems to be working (removed and started engine moved sensor and motor started to choke)
Pulled fuse looked fine replaced anyway.
When in park rocking truck transmission is locked and will not roll you put it in any gear and it will roll.

Torque converter was never removed from transmission when we pulled the motor.

It seems like the transmission is not engaging when put into gear, it really does nothing.
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Old 10-01-2008, 06:24 PM
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MT-2500 MT-2500 is offline
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Re: 97 Blazer Transmission problems

Fluid level?
Did the converter have free travel front to rear when engine bolted up to transmission.
Does reverse do anything?
Does the transmission have any line pressure?
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Old 10-01-2008, 07:06 PM
jdrobbins jdrobbins is offline
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Re: 97 Blazer Transmission problems

Fluid level is good.
Reverse does nothing.

Converter was snug up against flywheel.

How would I check line pressure?
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Old 10-02-2008, 07:51 AM
dewaynep dewaynep is offline
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Re: 97 Blazer Transmission problems

The torque converter may not be fully engaged in the pump. Remove the torque converter bolts and make sure the torque converter can be pushed towards the transmission about 1/2" or so. The torque converter should not be tight to the flexplate, it should move freely back and forth.
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Old 10-02-2008, 08:17 AM
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Re: 97 Blazer Transmission problems

Quote:
Originally Posted by jdrobbins
Fluid level is good.
Reverse does nothing.

Converter was snug up against flywheel.

How would I check line pressure?

A pressure gauge or remove a transmission rad cooler line and see if it is pumping fluid.
You should also be able to hear or feel it when put in gear.

As said in upper post the converter should have slack in it when unbolted and before bolting up.

If the converter was tight against the flex plate when bolted up you may have broke the ears off of the front pump gear.

If transmission has no fluid pressure you need to check front pump and pump gears.
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Old 10-06-2008, 05:57 PM
jdrobbins jdrobbins is offline
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Re: 97 Blazer Transmission problems

It was an ear broken off the pump.
Replaced pump and all good FINALLY.

Thanks for the Help.
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Old 10-06-2008, 06:11 PM
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Re: 97 Blazer Transmission problems

You are welcome and.
Thanks for posting back the fix and how it went.
Good luck with the engine.
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