Q: Transmission hot idle engine , plus there is trans fluid leaking i think its coming from tbe filler but also have coolant leak

asked by on October 24, 2017

Replaced rad and thermostat after car has beeb running hot and also replaced top trans cooling lines becsuse it was leaking , now i have a slight coolant leak on passenger side i checked and its not the hose rad or therm, and my trans sensor says (transmission hot idle engine) which is the big issue when driving on hwy over 90mph and trans fluid starts to leak from top where u fill it at or from tbe side . Need help money is very tight ritenow 

My car has 88000 miles.
My car has an automatic transmission.

The transmission requires the cooling system to be working correctly to keep it cool. If you have the cooling system pressure tested and locate the coolant leak and get it repaired. You may have a water pump leaking. Once the cooling system is fixed and transmission fluid level checked to make sure it is not overfilled or underfilled. Have area cleaned and road test to see if transmission or coolant is still leaking.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

What Is the Problem When the Check Engine Light Comes On?
The Check Engine Light is on most vehicles built in the last twenty years. The light is used to alert the operator of the vehicle that there is a problem that needs to be looked at as soon as possible....
Popping noise when accelerating
Hi. The noise will have to be inspected to initiate a diagnosis of what the problem might be. If the noise only occurs when the body of the vehicle shifts its weight, then it is either the suspension, body mount,...
Defroster not working
Hi, the problem could be the defroster grid has separated from the main power clip/tab. To reattach the tabs, remove the metal clip out of the connectors and use a tab repair kit to repair the problem. Replace the separated...
Car makes a clicking sound when turning
Hello! One general giveaway of a bad CV axle is a clicking sound when turning. CV axles are vital to the stability of the vehicle and they transfer the power to the wheels to make them turn. Noisy CV axles...
Advice on how to become a mechanic
I learned from my grandfather who was a mechanic. I started when I was 14, but he wouldn't teach me anything, he'd only let me watch. Over time I practiced and figured things out myself. Today, you can learn a...
Electrical problems and power surge?
Your voltage regulator (https://www.yourmechanic.com/services/instrument-voltage-regulator-replacement) is integral to your alternator assembly. If the battery is draining because the alternator is not maintaining the charge, the alternator or fuse is a good place to start looking (https://www.yourmechanic.com/article/how-to-test-your-alternator_2). For further advice, you'll need...
Outside lights started to blink - 2005 Volvo S60
Hello there. Blinking lights are caused by several different faults with your 2005 Volvo S60. The most common causes would be the alternator (https://www.yourmechanic.com/services/alternator-replacement), battery (https://www.yourmechanic.com/services/battery-replacement), poor electrical connection, wiring harness faults, or a loose electrical connection. A qualified technician,...
Valve cover replacement? 2001 Mitsubishi Montero Sport
Hi there - manufacturers are using plastic for valve covers, intake manifolds, and other engine components more and more often for weight and expense savings. Unfortunately, with repeated heat cycles, some of these plastics become brittle, or warp and won't...

Related articles

Symptoms of a Bad or Failing AC Condenser Fan
Common signs include lukewarm air coming from the AC vent, the car overheating while idle, and a burning smell in the car.
Symptoms of a Bad or Failing AC Thermistor
If your car's AC only blows cold air for a short amount of time or the blower is not functioning properly, you may need to replace the AC thermistor.
How Do I Prepare My Car for Summer?
Summer's Summer's heat, dust, and stop-and-go traffic will take their tolls on your vehicle. Follow these tips to ensure optimum wellness of your car: Air Conditioning: Have your air conditioning inspected (https://www.yourmechanic.com/services/heating-ac-inspection) by a qualified technician. Newer models have cabin...