Ask a Mechanic Online and Get Answers to Your Car Questions
Hello, and thank you for using Just Answer! My name is***** me a few moments to review your question and Ill do my best to assist you.
Hello a loose gas cap will set a code for the evaporative emission system like a P0455 gross leak or P0442 small leeak for example. It will not have any effect on the transmission operation. So yes it sounds like a transmission issue. Verify the trans is full of fluid by checking thelevel on the dipstick and its condition. See if it is red and clean or dark black or smell badly burnt. If it is low, inspect for a trans leak and repair and recheck. If it smells burnt, you are most likely looking at a trans repair which will require further diagnosis using a scan tool to start for any trans codes stored.
Do you need more help with this concern?
Black isnt good, but if it is full and black, flushing most likely wont fix it but you can try. Id have a shop run a diagnostic on it before spending the money on a trans flush.
One, that the fluid has not been changed in a long time and two, there is most likely transmission slippage going on and causing the fluid to turn dark from overheating. Just changing the fluid alone wont change how the trans shifts if it is full but delayed and slipping.
Worse case with a trnsmission replacement a couple thousand bucks, used trans cheaper. If it just needs a solenoid or minor repair, much less. But more than likely will need a major repair/trans replacement eventually.
Transmisison repairs arent cheap but it would be worth having it checked before giving up on the vehicle.
If you need more help please let me know. If I was helpful, please leave a positive rating.
Yes, they will know your vehicle the best.At least get a diagnostic and quote for repairs.
You are welcome, it should have been serviced roughly every 30K miles. No way of knowing now if it would have helped or not. If I was helpful, please leave a positive rating.