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Hi all sorry for so many questions but I am slowly learning about my new jimny noticed today that is doing about 4000 revs before it change into gear 4 is this right first time I have noticed it many thanks Dawn
No but I agree with your possibility list. How old is the car and what is the mileage and has the oil level been checked?
Not to be picky but this should be in the technical forum as more responses might be forthcoming.
If it is your first automatic it could just be a case of adjusting your driving style. I dont mean that to be patronising or cheeky but driving an automatic is very different to a manual.
As Jimkyx mentioned, you could be accelerating too hard. Automatics change down gear when the accelerator is flat on the floor, kickdown.
On your Jimny, the kickdown and automatic gearbox control is all taken care of electronically. Which means, if there is a fault and it happens enough times/for long enough that particular control unit will pick up on it and store a fault code. If the fault is detected in the engine (the throttle position for example) the engine management light will show.
If there is a problem with the gearbox the 'od off' light will flash, in severe cases the automatic gearbox will only operate in 3rd gear.
In otherwords, if there was anything serious, the control unit would probably know about it before you even noticed!
From my experience with Jimnys, sticking in 3rd gear is usually the first sign of trouble with the gearbox. Automatic gearboxes are not cheap. Torque converters are not cheap. Because automatic gearboxes are usually quite reliable, mechanics rarely get the chance to work on them so arriving at your local garage asking them to do anything with an automatic gearbox is usually met with a look of terror!
There are things you, as an owner can do like check the oil (the 1st thing I look at if I have a car at work with automatic gearbox problems regardless of the symptoms.
Drive the car until the heater blows hot.
Select P, then R, then N, D, 2, L then back to N and turn the car off.
Check the oil level on the automatic gearbox, should be on the passenger side of the engine bay.
Oil level should be between the 2 dots. The oil should resemble strawberry sauce.
It sounds simple but as the automatic gearbox is just a big hydraulic pump it needs the correct amount of oil to do anything. The colour is important too. Brown means something is burnt and on its way out. Pink means water is leaking in somewhere.
Given the age and mileage of your Jimny I'd be expecting red oil above the bottom dot on the dipstick. It takes about 100ml to raise the oil level from the bottom dot to the top and that amount can make a difference!
If your problem disappears as the car heats up I'd imagine, if there is a problem it is to do with the oil level.
Hi all thank u for input I will check the oil level this is not my first auto I have a merc auto for summer driving if it needs oil does it just go in the dip stick hole
aaaaah! the missing condition is 'when cold'.
Tried mine and it did delay changing into 4th.
If the oil is OK then I don't think you have a problem.
The ECU must read the rpm and engine temp stopping an early change when cold to reduce strain on the engine.
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