Question about Chevrolet 1500

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I have a TH700R4 transmission in a 1987 K-5 Blazer, it first started not wanting to shift from 1st into 2nd. I changed the transmission filter and fluid and now it want even change out of 1st

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  • Chevrolet Master
  • 16,590 Answers

You dropped the pan to change the filter? Was there a lot of gunk in the pan? If it has over 100,000 miles on it, it is time for a rebuild.

Posted on Oct 21, 2013

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6ya6ya
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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: 1992 tracker automatic transmission shifting

I have the same problem also. Hope someone has the answer.

Posted on Oct 16, 2008

  • 158 Answers

SOURCE: transmission wont shift

check the kickdown/throttle valve cable. It may be bound up and stuck in the maximum position giving you extremely late shifts.

There ISN"T any modulators or vac lines on any Chrysler automatics

Posted on Apr 03, 2009

Molson02536
  • 3854 Answers

SOURCE: 4L60E Shifts fine in 1st, 2nd, & 3rd but will not shift into OD

The EMC detected and problem so it's in limp mode, As long as it's in limp mode the 4th and OD will not activate. Take care not to burn up the transmission by running it hard while your in the limp mode.
Your going to have to get the truck scanned to clear any codes and why there are DTC codes. Auto Zone scan for free and most auto shops charge $10.00 to $20.00 to scan sine they want the business.
If you want to clear the codes your self you can put the ignition to the run position and pull the ECM (Batt) fuse out for 20 sec and place it back in then start the truck. It may stall but let it, just start it again and this would have cleared all the DTC code history.
The transmission should be running fine unless there is a problem and the service engine light will be on again and you'll be in limp mode still with an updated DTC in the ECM.
Good luck and hope this helps.

Posted on May 26, 2009

  • 51 Answers

SOURCE: transmission wont shitf from 2nd to 3rd

Is the transmission being controlled electronically or manually through a shift cable?

Posted on Jun 03, 2009

  • 312 Answers

SOURCE: 1987 chevy pickup, 700r4 tranny.

have you adjusted the tv cable at the throttle coming from the trany.

Posted on Oct 20, 2010

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1 Answer

97 blazer wont shift right it shifts from 2nd to 3rd fine but wont shift 1st or overdrive i have changed both shift solenoids and new filter and fluid it still wont shift rite whats next?


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Hello;
Ahhhh I see from the next post why. Have you changed the transmission fluid and filter?
Let me know, and is this the only problem with the transmission you are aware of?
Thanks;
Rich
RPM Northwest

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1997 chev. blazer


If it shifts from 1st to 3rd gear also, then you need to have it rebuilt.
I lost reverse and 2nd gear in mine and I had it rebuilt.
Works great now and for the low price of only $1600,,,LOL

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