robroy Registered User
Posts: 2
(7/23/02 2:31 pm) Reply
What's the "Idle Up" button for?
I know its supposed to speed up the idle, but it has no effect on my 95 3.0TD.
Does it work for the rest of you.
I dont thing I've missed anything, but it has puzzled me.
Michael SA Registered User
Posts: 10
(7/23/02 8:03 pm) Reply
Re: What's the "Idle Up" button for?
Mine works ok, it increases idle speed from about 650 RPM to around 1200. I'd check and make sure that the switch is still plugged into its loom, its possible it was put back together at some stage and not plugged in. The switch just presses into its slot - you should be able to carefully prise it out with a small flat blade screwdriver.
Regards Michael
Doug R
Unregistered User (grommet)
(7/23/02 8:26 pm) Reply
Idle up
diesels should not be idled for long periods >>Glazes Bores>> use idle up button for warm up,long standing whilst eng running
Beddo
Unregistered User (grommet)
(7/24/02 12:07 am) Reply
Idle up button- useful going thru rough stuff.
With other manual 4WD's you have a hand throttle that you can lock on, to assist going up rough rocky sections - stops your foot bouncing up and down on the accelerator. This button on the auto does the same thing.
wizzer Registered User
Posts: 9
(7/24/02 12:55 pm) Reply
Re: Idle up button- useful going thru rough stuff.
My button idles up to around 1200 but when you start moving it goes down to normal. Can't use it for crawling along.
wizzer
robroy Registered User
Posts: 7
(7/26/02 8:58 am) Reply
Thanks
Thanks guys,
I wanted to use it for crawling, so no loss I guess.
Rob
RandalG Registered User
Posts: 8
(7/26/02 12:21 pm) Reply
Re: Thanks
My 1990 2L-TE actually has an idle-up dial just to the right of the steering column. Turn clockwise for increased idle speed, anti-clockwise for standard idle. I can push it out to almost 2000rpm. I've found it quite handy for cold morning starts when out bush, and to keep the idle up for gear changes in soft sand etc.
geoff stanthorpe
Unregistered User (grommet)
(7/26/02 8:34 pm) Reply
what's idle up for?
the idle up function is to increase the efficiency of the aircon system in traffic jams.
Leanne NSW Distinguished Site User (10posts+)
Posts: 14
(7/27/02 4:26 pm) Reply
Re: what's idle up for?
I use mine for those icy mornings to help warm up. Trouble is I sometimes forget to turn it off and travel from Picton to Liverpool with it on. The 'on' light is pathetic and difficult to see. Maybe a big sign in front of my nose is needed.
Leanne
Beddo
Unregistered User (grommet)
(7/29/02 9:53 pm) Reply
Idle up botton - I tried it & it works for crawling on m
Accidently hit it the other night and wondered why the engine was revving, so I tested it and was able to crawl round the car park.
oldfart Registered User
Posts: 10
(2/8/03 7:03 pm) Reply
Re: What's the "Idle Up" button for?
The idle up button on my 94 3Lt only works when in neutral with the A/C switched on. Diesels do not like to, and are not designed to idle for long periods. With the switch on you can drop it into neutral and it will automatically idle up, such as in traffic jams or waiting for the misses to finish shopping etc. This is normal practice on most coaches, especiall GM'S.
Mine does not work once you have selected a gear. Hope this helps
Cheers
Gill.
JamDonut
Unregistered User (grommet)
(2/8/03 7:17 pm) Reply
What? No idling?
Read a few of yous guys saying that it is bad for a diesel to idle for a long period of time. Rather puzzled by this one.
I thought it is good for turbo charged engines to be left to idle after a hard workout (hence the use of turbo timers) and therefore have been letting the engine idle for quite a while whenever I go offroad and stop anywhere along the way.
Re: What? No idling?
I let mine idle for a minute or two if the Turbo has had a bit of a workout.If the temperature gauge is fairly low i don't bother.I think Turbo Timers are unnecessary otherwise they would have been installed by the manufacturer.
Neville
oldfart Distinguished Site User (10posts+)
Posts: 11
(2/8/03 8:39 pm) Reply
Re: What? No idling?
You are partially right with your comments, however it is not good to idle a diesel for long periods as the bores glaze up eventually. It is sound practice to idle a turbo diesel after a run, mainly to even the temperatures out and to let the turbo wind down to normal speed. Turbos rotate at extreamly high RPM when working hard and to turn them off straight after a run doesn't give them time to normalise, so to speak. If you turn the motor off straight away the turbo could quite possibly be still rotating at high speed without lubrication, can you imagine, high speed, high temperature, no lubrication, a very bad scene. Just idle the engine for a few minutes on shut down and you will save yourself a lot of money in the long run.
Cheers.
Gill
RGunther Distinguished Site User (10posts+)
Posts: 29
(2/12/03 1:33 pm) Reply
idle up
Mine didnt work initially and I found it was unplugged. Pulling the dash out to rewind speedos a bit seems to be the norm and sometimes things dont get put back together properly. Mine is a 1993 3litre and the idle up works constantly until it is manually turned off so it can be used for crawling.
Re: idle up
My 'IDLE UP" works until you reach a certain speed. It works at crawl speeds but anything over about 40ks it switches itself off. I found this out by popping it into neutral at different speeds whilst driving along. When you slow down again and push the clutch in it works again. I mainly use mine when reinflating my tyres after a run on the beach. It enables the alternator to give more current and you can actually hear the compressor speed up.
Re: What's the "Idle Up" button for?
Leanne NSW mentions that there is a light when the idle up is on - mine does not work, is there an idle light, where about is it on the dash, as I do forget from time to time to turn it off, it is hard too notice when the trans is in gear all the time? My 1996 Surf is an auto 3.0 litre with an intercooler. My normal idle is always at about 900 rpm / 1000 rpm, is this too high?
Thanks,
Graham
RGunther Distinguished Site User (10posts+)
Posts: 30
(2/14/03 10:37 am) Reply
Idle speed
Idle speed should be within 650 - 750 rpm. It is controlled by the ECU and is not adjustable. Could be your throttle cable is adjusted up too tight (If you have a throttle cable on your model).
Re Idle speed
Thanks RGunther, for your suggestion the throttle cable too tight. Yes, you were right, what happened was that when I had the aftermarket cruise control installed, the installer had the cruise contol cable just a fraction too much tension, so I have now slacken it slightly and now idles at about 750rpm.
Re: What's the "Idle Up" button for?Surfers,
I am somewhat confused, What is the specific function of the "Idle Up" switch. Postings above refer to
Using to Rock crawl and
Using instead of just idling when stopped for long periods.
My KZN 185 has "switch only" no light indicator and it cuts out when put into gear.
My Landruiser Series 80 had a "pull cable knob" that locked into place by turning. I used this in Low / Low to pull 35' yacht out of water on special trolley. Seems like I should have been using it for another function.
ShaneEdited by: Just Cruzin at: 2/16/03 9:56:32 am
RGunther Distinguished Site User (10posts+)
Posts: 33
(2/16/03 6:28 pm) Reply
Re: What's the "Idle Up" button for?
My understanding based on other diesels I have owned with manual idle up knobs is that its primary function is for warming up the motor in very cold conditions. If you have ever started a diesel after a night in the snow you will find it initially has some difficulty maintaining idle without some throttle assistance. Japan is much colder than Australia. Higher rpms will also bring it up to operating temperature quicker (and get the heater working quicker).
When any air conditioner is turned on it also increases the idle slightly to work more efficiently and not lug the motor. Thats something different again.
A manual throttle or idle up is often useful offroad, particularly in a manual and for plodding over rocks.
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