Question about 1999 Chevrolet Silverado 1500

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1999 chevy z-71 when it gets to bout 30 mph it shifts but revs up to bout 3000 rpms and stays there if i try to drive unless i let off

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  • Chevrolet Master
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Sounds like a clutch is slipping.
Does it feel like it shifts from second to third gear ?

Posted on Apr 20, 2013

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: chevy 1500 1999 starts fine but in park/drive at 1500-2000.rpms

Sounds like a fuel pressure regulator is bad

Posted on Mar 29, 2009

  • 1 Answer

SOURCE: 2003 impala will not rev past 3500 rpm in neutral

Sounds to me like transmission issue might want to have this check.............

Posted on Apr 03, 2009

  • 91 Answers

SOURCE: 2001 automatic chevy truck Z71 not shifting out of 2nd gear

1 st did you fill the transmission after radiator replace ment some lines go to the rad. when you loose fluid it needs to be added and checked. Other wise it sounds like a trans needs to bo serviced.

Posted on Apr 27, 2009

Molson02536
  • 3854 Answers

SOURCE: 1992 Chevy Suburban rpms jump at 60+ mph

When the transmission jumps the extra RPM by 200 or 300 RPM. That's your Torque Converter Clutch lock up disengaging or it's slipping. Pull the transmission dip stick out and check the fluid level and condition of the fluid, look to see that it's not burning. If the fluid is not burning then it's the Torque converter clutch unlocking and the Throttle position Sensor may need to be readjusted, or if the transmission is still running off a TV cable. The TV cable may need to be adjusted and or the transmission filter may be dirty and needs to be changed. Take it to a transmission shop and explain to them what the transmission is doing. I'm not sure if your transmission is an 4L80 or a 4L80E. If it's the 4L80E the PCM and ECM control the lock up to your converter. If the PCM detects a problem with the transmission, it drops the transmission fluid pressure to the converter clutch. If it's a 4L80, it's controlled by the TV cable and vacuum lines to the transmission modulator. Regardless they can look in to this when they change the transmission fluid and filter. Recap: Have the Suburban's ECM scanned for any transmission DTC codes. Service the transmission if the fluid is dark in colour and burnt. Adjust any linkage to the transmission that is an issue to it's performance. Good luck and keep me posted, be glad to help.

Posted on Jun 07, 2009

juncro
  • 467 Answers

SOURCE: 1997 chevy k1500 pickup-transmission shifting problems

check the fluid level in the transmission, also change the transmission fluid and filter

Posted on Jul 30, 2009

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