BigJimnyMeet (North) 2024 (12 Jan 2024)

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resistance when going on drive downhill

danielbz
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31 Jul 2022 03:09 #244307 by danielbz

resistance when going on drive downhill was created by danielbz

hello

i have experienced some unusual resistance when going downhill from the jimny, its like it is going down at a steady speed but suddenly it likes brakes on its own a little, have someone experienced this too? regards

regards

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Lambert
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The quickest Jimny in Harrogate...(that I own)

31 Jul 2022 06:42 #244309 by Lambert

Replied by Lambert on topic resistance when going on drive downhill

It's not one with the collision avoidance, lane departure warning or hill decent control is it? A malfunction in one of those systems could have your symptoms. After that it could be worth checking the front calipers are not sticking.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
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DrRobin
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31 Jul 2022 08:14 #244311 by DrRobin

Replied by DrRobin on topic resistance when going on drive downhill

Remember Daniel had a thread about poor fuel economy so no doubt the two issues are linked. It could well be brakes sticking.

I am not sure which model he has or how old it is to know if it has the other features.

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mlines
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31 Jul 2022 09:32 #244315 by mlines

Replied by mlines on topic resistance when going on drive downhill

Is it a late model Gen3 or new Gen4 with Hill Descent Control ??

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2003 M13 early KAP build.
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danielbz
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31 Jul 2022 12:48 - 31 Jul 2022 12:48 #244326 by danielbz

Replied by danielbz on topic resistance when going on drive downhill

helo admin
thank you everyone for answering
no, you all got me wrong, i dont feel the same smoothness when its on N going downhill, i dont mean downhill like a mountain but rather an inclined road.
in N it goes down smooth, but when on D i know it should have a drag because the car is moving the engine nevertheless i feel like it brakes on itself a little from one moment to another and its not smooth like going down on N, what about you guys? when going down on D do you experience too much resistance?

Last edit: 31 Jul 2022 12:48 by danielbz.

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Lambert
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31 Jul 2022 17:40 #244332 by Lambert

Replied by Lambert on topic resistance when going on drive downhill

No my gen3 automatic will hold basically at whatever speed I accelerated to for quite a considerable distance on anything resembling even a slight down slope and on a more meaningful gradient will need periodically braking to maintain the desired speed. However I don't have hill decent control or emergency braking etc. The only time I have felt anything like what you describe is the occasion I had contaminated fuel but that was a more vague feeling of something just generally being wrong.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!

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danielbz
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01 Aug 2022 01:36 #244342 by danielbz

Replied by danielbz on topic resistance when going on drive downhill

you going down on D right? or on N??
@Lambert

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Lambert
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The quickest Jimny in Harrogate...(that I own)

01 Aug 2022 03:23 #244344 by Lambert

Replied by Lambert on topic resistance when going on drive downhill

I want my gearbox to last indefinitely so I only use neutral when stationary. Dropping in and out of drive and neutral at any road speed is going to adversely affect the longevity of the gearbox. If the car is moving it is in gear.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!

The following user(s) said Thank You: 300bhpton

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Old Neil
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01 Aug 2022 04:59 #244345 by Old Neil

Replied by Old Neil on topic Re:resistance when going on drive downhill

Lambert wrote: I want my gearbox to last indefinitely so I only use neutral when stationary. Dropping in and out of drive and neutral at any road speed is going to adversely affect the longevity of the gearbox. If the car is moving it is in gear.

I'm on Lambert's side
I don't know anything about autos ,if jimny's rolling at speed in neutral is the fluid pump turning are bearings running dry?

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300bhpton
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01 Aug 2022 09:48 #244348 by 300bhpton

Replied by 300bhpton on topic resistance when going on drive downhill

wrote:
Remember Daniel had a thread about poor fuel economy so no doubt the two issues are linked. It could well be brakes sticking.

I am not sure which model he has or how old it is to know if it has the other features.

Although it turned out they used US gallons, when converted to Imperial gallons their MPG is about bang on I'd say.

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300bhpton
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01 Aug 2022 09:49 #244349 by 300bhpton

Replied by 300bhpton on topic resistance when going on drive downhill

wrote:
hello

i have experienced some unusual resistance when going downhill from the jimny, its like it is going down at a steady speed but suddenly it likes brakes on its own a little, have someone experienced this too? regards

regards

Are you sure this isn't normal engine braking? Have you driven any other auto Jimny's for comparison or any other automatic vehicles? The Jimny shouldn't behave any differently to any other automatic.

My 2019 Chiffon Ivory JB74 SZ5 - blog/mods/build thread -let the adventure begin

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saxj
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01 Aug 2022 09:58 #244350 by saxj

Replied by saxj on topic resistance when going on drive downhill

wrote:

wrote:
hello

i have experienced some unusual resistance when going downhill from the jimny, its like it is going down at a steady speed but suddenly it likes brakes on its own a little, have someone experienced this too? regards

regards
Are you sure this isn't normal engine braking? Have you driven any other auto Jimny's for comparison or any other automatic vehicles? The Jimny shouldn't behave any differently to any other automatic.

It is engine braking. When going downhill on the brakes, the Gen 4's auto box will change down to a gear appropriate for the speed.

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BigJimnyMeet (North) 2024 (12 Jan 2024)

resistance when going on drive downhill

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