Hi everyone. I need advice please. Forgive my explanation, I don't know much about cars.

I drive a 1998 Honda Accord EX I4 Automatic transmission (4 gear). Recently, I noticed that whenever I'm on a journey, the transmission performs very fine but after about one hour of constant acceleration above 100km/h, the transmission begins to misbehave and the gears take much effort to shift. Furthermore, when it starts misbehaving and I engage the gear, it doesn't respond immediately until I rev it up to 3000 and then it responds and takes unusual time to shift to the next gear and then stops at the third gear. But after letting it to cool off for like 30 minutes, it returns to normal. This has prevented me from using the car for journeys.
I took the car to the mechanics and after checking, they said the fault was from the sensors. I changed all the sensors and on the same day, I noticed the same problem.
Please what could be the cause of this problem and how can I go about fixing it?
Your kind advice and comments will be appreciated.
Thank you

Have you heard of what people call obd2 scan

Pls scan your vehicle. (Engine and transmission)

There is no shortcut to vehicle diagnosis


Cheers

DMayor101:
Hi everyone. I need advice please. Forgive my explanation, I don't know much about cars.

I drive a 1998 Honda Accord EX I4 Automatic transmission (4 gear). Recently, I noticed that whenever I'm on a journey, the transmission performs very fine but after about one hour of constant acceleration above 100km/h, the transmission begins to misbehave and the gears take much effort to shift. Furthermore, when it starts misbehaving and I engage the gear, it doesn't respond immediately until I rev it up to 3000 and then it responds and takes unusual time to shift to the next gear and then stops at the third gear. But after letting it to cool off for like 30 minutes, it returns to normal. This has prevented me from using the car for journeys.
I took the car to the mechanics and after checking, they said the fault was from the sensors. I changed all the sensors and on the same day, I noticed the same problem.
Please what could be the cause of this problem and how can I go about fixing it?
Your kind advice and comments will be appreciated.
Thank you

Replace transsmission.

Before anything, check the level of your Gear Oil!

Scan your ride and replace transmission. If you need to scan your ride call 08165520837. Bb pin is 7BE1C522

DMayor101:
Hi everyone. I need advice please. Forgive my explanation, I don't know much about cars.

I drive a 1998 Honda Accord EX I4 Automatic transmission (4 gear). Recently, I noticed that whenever I'm on a journey, the transmission performs very fine but after about one hour of constant acceleration above 100km/h, the transmission begins to misbehave and the gears take much effort to shift. Furthermore, when it starts misbehaving and I engage the gear, it doesn't respond immediately until I rev it up to 3000 and then it responds and takes unusual time to shift to the next gear and then stops at the third gear. But after letting it to cool off for like 30 minutes, it returns to normal. This has prevented me from using the car for journeys.
I took the car to the mechanics and after checking, they said the fault was from the sensors. I changed all the sensors and on the same day, I noticed the same problem.
Please what could be the cause of this problem and how can I go about fixing it?
Your kind advice and comments will be appreciated.
Thank you

its either the cluctches are gone or the oik is old needs changing

i always recommend starting with changing the oil especially the recommended one

if it doesnt work then the clutches are gone

i once had a problem like that but on hond crv 98 and it would lose drive after 10 mins of drive and the problem was the wore out clutches, changed the transmission

thanks for ur suggestions. i will scan the car and do the needful

DMayor101:
thanks for ur suggestions. i will scan the car and do the needful

just know that worn out clucthes wont come out as codes the same with old oil

Were you not using the recommended tranny oil? Was there anytime the tranny fluid was low? Maybe you have not been gauging it. Does the oil smell like a burnt brake?

If the answer to the above questions are YES, then you need to replace your transmission. You still need to scan the car shaa.