Rebuilt Transmission and engine upgrade?

1999 CHEVROLET SILVERADO
236,000 MILES • 6.0L • V8 • 4WD • AUTOMATIC
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CAREBEAR633
  • MEMBER
  • 1 POST
I went from a 5.3l in my 90 Silverado 1500 to a 6.0l transmission went out. so I dropped it and rebuilt it with a rebuild kit myself. I put it all in. And it feels like its attempts to go into gear but no luck. Took the line off to see if pump was pumping properly and no action. Linkage broke and everyone I get just will not extend enough to move it from the gear shifter to the transmission. I'm lost. Please help I've been ride less since it went down since before Thanksgiving. I. Out of money and options. I can't give up on my TrInItY!!
Mar 23, 2023 at 11:10 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,256 POSTS
First make sure the electrical connector is secure at the transmission, next make sure the fluid is full and finally let's run the codes to see what comes up.

This guide can help:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

and

https://www.2carpros.com/articles/how-to-check-and-add-transmission-fluid


Please go over these guides and report back.

Mar 24, 2023 at 12:12 PM
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