Transmission Slipping After Heavy City Driving
Thread Starter
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4wd Low
Joined: Oct 2024
Posts: 12
Likes: 0
Transmission Slipping After Heavy City Driving
Hello,
When I spend a day driving in the city at over 30°C and then head out onto the highway, the transmission starts slipping. I can't give more than 60-70% throttle; otherwise, it feels like it's shifting into neutral. I have to let off the gas briefly for it to catch itself, and then I can carefully accelerate again.
This always happens after a lot of city driving on hot days.
The transmission fluid is only 15,000 km old and still nice and red.
Is there anything I can do about this?
Car: Ford Expedition 2004 with the 5,4 L Triton V8
Thanks,
Lexenlewax
When I spend a day driving in the city at over 30°C and then head out onto the highway, the transmission starts slipping. I can't give more than 60-70% throttle; otherwise, it feels like it's shifting into neutral. I have to let off the gas briefly for it to catch itself, and then I can carefully accelerate again.
This always happens after a lot of city driving on hot days.
The transmission fluid is only 15,000 km old and still nice and red.
Is there anything I can do about this?
Car: Ford Expedition 2004 with the 5,4 L Triton V8
Thanks,
Lexenlewax
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,730
Likes: 2,658
From: SE Florida
What codes are stored in the PCM? Either get Forscan at www.forscan.org, or take it to a good independent shop to read the codes, or get them read at a Ford dealer.. The auto parts stores that read codes free CANNOT read these codes.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,730
Likes: 2,658
From: SE Florida
You can download Forscan free at www.forscan.org. You don't need to purchase a license to read codes. A dongle to plug into the OBDII port is pretty cheap, I bought mine a few years ago from Amazon for about $30.
Without codes, all I can do is list parts for you to change to see if that fixes it. We should stumble onto the problem before you get over $10,000 in parts.
Without codes, all I can do is list parts for you to change to see if that fixes it. We should stumble onto the problem before you get over $10,000 in parts.
Thread Starter
|
4wd Low
Joined: Oct 2024
Posts: 12
Likes: 0
You can download Forscan free at www.forscan.org. You don't need to purchase a license to read codes. A dongle to plug into the OBDII port is pretty cheap, I bought mine a few years ago from Amazon for about $30.
Without codes, all I can do is list parts for you to change to see if that fixes it. We should stumble onto the problem before you get over $10,000 in parts.
Without codes, all I can do is list parts for you to change to see if that fixes it. We should stumble onto the problem before you get over $10,000 in parts.
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