Pacific Automotive - Your Local Dealer Alternative Auto Repair Center

Serving San Diego Over 25 Years

5181 Santa Fe St San Diego

(858) 925-5359

transmission symptoms

Transmission Symptoms

Beware of transmission symptoms indicating a problem can prevent larger problems down the road. With regular maintenance according to the manufacturer’s schedule, there’s rarely a need for transmission repairs in San Diego.  But problems do happen, especially as the miles pile on.  When your transmission makes a grinding sound there’s no doubt that it’s time for repairs.  Recognising less obvious signs that something’s gone wrong early on can mean the difference between a quick-fix and a huge repair bill.  So let’s go over the symptoms of the most common transmission problems.  We won’t go into causes and diagnoses, but rather when it’s time for a trip to the mechanic outside of the standard maintenance schedule of inspections, transmission fluid changes, and adjustments.

Early Warning Signs

Your car or truck shouldn’t act or sound any differently as it gets older, so any changes that you notice should be looked in to.  It’s easy to dismiss minor transmission issues, but many lead to further damage so acting sooner rather than later can save you a bundle.  Here are some of the most common warning signs for automatic transmissions.

  • Check transmission or check engine light turns on.  A mechanic can quickly read out the on-board computer code that caused the light to go on, and have a pretty good idea of what’s wrong.
  • Any delay in going into park or drive indicates a developing problem.
  • Lack of response (hesitation) when you first hit the gas might also be a warning.
  • Stalling at stop lights or stop signs could have many other causes, but all should be looked into.
  • Transmission fluid leak.  Transmission fluid is usually bright red (though sometimes dark red or brownish) compared to brown (or black) oil or pale-green coolant.

If you notice any of these it’s time to visit an auto shop.

Major Transmission Problems

If your vehicle becomes difficult or impossible to drive — such as when it refuses to go into drive — it’s clearly time for a transmission repair.  Here are some transmission issues indicating problems that should be repaired as soon as possible before a tow or major overhaul are necessary.

  • Slipping, jumping, or unexpected gear changes when accelerating.
  • Thumping, grinding or shaking during shifting.  That’s often due to a worn clutch, and may soon progress to shaking and jarring.
  • Rough shifting gears, engine revving or lugging when speeding up or slowing down.
  • Whining, clunking, or buzzing while driving.
  • Noises while in neutral.  This could be serious, or just a  low transmission fluid level.
  • Burning smell.  This often indicates an overheated transmission.  Keep driving to an absolute minimum or you’ll soon need a tow.

In brief, when everything’s working properly, changing gears should be almost unnoticeable — just a small and brief change in engine speed.  Anything else deserves your attention.