flanders
Well-Known Member
- Thread starter
- #1
Love my Jeep. My most prized possession... until I'm driving downhill.
I drive up a steep canyon road in awe of my jeep's capability, loving life. Same road coming down I want to kick it in it's transmission.
4Lo won't hold me back! My dad (21 Bronco) and brother (21 Willys S) are coasting smoothly asking me why I'm on my brakes so much.
Thought it was normal til I found these two threads.
https://www.jlwranglerforums.com/forum/threads/2018-jlu-sudden-acceleration-downhill-in-4l.37338/
https://www.jlwranglerforums.com/forum/threads/19-jl-sudden-accel-downhill-in-4l.27161/
Both threads end without really identifying if this is normal behavior??
To be concise, in 4Lo going downhill:
1. Engine suddenly loses all 'hold back' and rpms surge. In manual mode too.
2. If I don't brake when it surges, it'll go up to 4000ish before some mysterious force pulls the rpms back down to normal. Then it'll surge again. Infuriating oscillations forever.
3. If I touch the gas at all, it sends it into this surge mode. Almost seems like I need to come to a full stop to reset it. Then it'll be good for a minute until it's to steep or I touch the gas. Then the rpms are at 4k again.
My question, is this normal? My brothers Jeep doesn't do this, but I have a lower low. If it is, great. If not, I'm going to be mad I just wasted the last year hating the thing every downhill.
Thanks in advance.
I drive up a steep canyon road in awe of my jeep's capability, loving life. Same road coming down I want to kick it in it's transmission.
4Lo won't hold me back! My dad (21 Bronco) and brother (21 Willys S) are coasting smoothly asking me why I'm on my brakes so much.
Thought it was normal til I found these two threads.
https://www.jlwranglerforums.com/forum/threads/2018-jlu-sudden-acceleration-downhill-in-4l.37338/
https://www.jlwranglerforums.com/forum/threads/19-jl-sudden-accel-downhill-in-4l.27161/
Both threads end without really identifying if this is normal behavior??
To be concise, in 4Lo going downhill:
1. Engine suddenly loses all 'hold back' and rpms surge. In manual mode too.
2. If I don't brake when it surges, it'll go up to 4000ish before some mysterious force pulls the rpms back down to normal. Then it'll surge again. Infuriating oscillations forever.
3. If I touch the gas at all, it sends it into this surge mode. Almost seems like I need to come to a full stop to reset it. Then it'll be good for a minute until it's to steep or I touch the gas. Then the rpms are at 4k again.
My question, is this normal? My brothers Jeep doesn't do this, but I have a lower low. If it is, great. If not, I'm going to be mad I just wasted the last year hating the thing every downhill.
Thanks in advance.
Sponsored