Transmission has completely lost reverse, as if it didn't exist. Forward gears work, but will not shift until around 4700 RPM. Vehicle has approximately 150k miles and this came about suddenly without warning of any type.
SOURCE: Automatic Tranmission forward gear works reverse doesn't
YOU HAVE A SHIFT SOLENOID THAT HAS EITHER FAILED OR IS STUCK, DO YOU HAVE ANY TRANS TROUBLE CODES?
SOURCE: 1995 chevy s-10 blazer does not shift gears
Tell me something. Does it seem like the truck is in 3rd gear when you shift in D.If is it I know what it is.
SOURCE: Hi, I have a 1998 Chevy 3/4 ton 4x4, automatic
Yes, you are correct. i would change the filter as well. check the torque converter for stress.
SOURCE: 1998 chevy k1500 4x4 4
first of all your truck is already in first gear when your going down the road....lol
SOURCE: Blazer transmission not shifting properly beetween 1 and 2
Your going to have to get the ECM scanned, Auto Zone scan's for free and most garage now will scan for $10.00 to $15.00 since they all have the scanners now and need the business.
You could have a Vehicle Velocity Sensor (V V S) going bad or the wire harness it self. The V.V.S tells the ECM how fast the drive shaft is rotating and calculate's what gear it should be in relative with the engine speed and throttle position, and transmission fluid pressure.
Regardless you need the Blazer scanned to pin point why your transmission is shifting the way it is. Could be as simple as time for transmission oil and filter change for $125.00 or a loose wire harness.
Check your transmission fluid and try not to run the blazer to hard, to replace the transmission start at $1,900.00 for a rebuilt.
Good luck and hope this helps. Keep me posted
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