1999 Chevy Suburban Hard Shift sometimes after stop

1999 CHEVROLET SUBURBAN
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ART JENKINS
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Transmission problem
1999 Chevy Suburban V8 Four Wheel Drive Automatic

I have a 1999 suburban k1500 4wd automatic trans (vin R ) that somtimes after you stop the trans shifts hard when you start moving again, but will shift fine if you turn off car and what 10sec. (aprox.) and restart it. This only happens sometimes but set a trouble code 1870 and turns on service engine sone light, i think its one of trans shift solenoids but not sure wich one. Help!!!
Oct 15, 2009 at 10:43 AM
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SERVICE WRITER
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Disconnect the tccm (transfer case control module) and see if the symptoms stop. If so, replace the module.
Oct 15, 2009 at 12:26 PM
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