What is the problem you’re having with your automatic transmission ? The transmission is hard on the upshift.

* Issue : Misadjusted Throttle Valve Linkage
* Description : The automatic transmission may malfunction from lack of fluid, contaminated fluid, or harsh driving. The transmission must be regularly maintained.
* Solution : Automatic Transmission Repair

* Issue : Improper Transmission Fluid Level
* Description : The transmission fluid may be incorrect from a leak, contaminated fluid, or from harsh driving. It is important to regularly maintain the transmission and fluid levels.
* Solution : Transmission Repair

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Please note

In most cases, the check engine light comes on even without a fault or because of a minor fault.
The electronics can be fickle and can detect "failures" without incidence :

  • Poor fuel quality,
  • Fuel tank cap improperly closed,
  • Low oil level,
  • A faulty sensor,
  • Etc...

Sometimes, a simple reset via CarDiag can solve a lot of "electronic problems".