Question about 1999 Chevrolet Tahoe

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I hit a bump earlier leaving work and my tahoe started runing really rough all the sudden.

Service engine light would come on and flash if i got over 2000 rpm, seems to not be running on all cylinder's, this sudden change leads me to think it may be some kind of sensor but im not sure.

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  • 444 Answers

Well don,t hit bumps then,Check that all the spark plugs wires are on tightly.

Posted on Oct 29, 2012

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Posted on Jan 02, 2017

fyrebyrd1
  • 121 Answers

SOURCE: 2000 malibu jerks when driving.

I would check the transmission fluid level. Sounds like the fluid level is low.I hope this helps

Posted on Nov 16, 2008

  • 40 Answers

SOURCE: Rough running and rough idle

Doesnt sound at all like an electrical control issue... more like a tune up...
How many miles? If its hard to start its typically due to spark plugs being worn down with age.. that engine has individual coils per cylinder so there are no "cap, rotor or wires" involved... just replace the plugs, they are platinum and they are about 8-9$$ each x8... but that is what you need

Posted on Nov 25, 2008

SOURCE: 98 Cavalier 2.4L engine stumbles at 2000-2500 rpm

Could be a short in the wiring for the O2 sensor.   I currently have the same issue only my car finally threw a code after two days of it acting up.  Code 106.  Changed the MAP sensor and it now throws 108, MAP sensor high voltage circuit.  Ah the joys of cold weather and broke down vehicles.  But I know that you wont always get a code with a short.  Let me know if you fixed the problem.

Posted on Jan 08, 2009

  • 7353 Answers

SOURCE: po452 trouble code changed sensor engine light

you may have to drive it several days for the light to go off, or have the codes cleared. personally I would just drive it. if the computer tests it, and it passes the test, it will go off on its own.

Posted on Sep 21, 2009

  • 85 Answers

SOURCE: 1998 Chev Astro 4.3L AWD. Rough idle & misfire Cylinder 6

Hi, the 4.3 liters have an injection system on them that can leak and will show up as a misfire. it is common but elusive to find. you might consider taking the van to a repair shop to have the problem diagnosed and go on from there.

Posted on May 22, 2010

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