Mitsubishi Delica Owners Club UK™

dustylegs11 · Posted: Wed Jun 15, 2005 21:27 Post subject: keeping revs high

my Deli has just started keeping hold of her revs, she normally changes at a comfortable time and speed, but the last few days she has kept the revs high for longer............ :? .........any ideas, i think that she is due a service soon, could that be the problem?
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Rusty · Posted: Wed Jun 15, 2005 21:36 Post subject:

Don't want to say the obvious but have you been using the Air-Con?
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dustylegs11 · Posted: Wed Jun 15, 2005 21:39 Post subject:

no, not after a trip to Wales when i first got her and it used quarter of a tank on top of what it should have. better on the way back when it was off, and now stays off Shocked

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Rob Barker · Posted: Thu Jun 16, 2005 8:32 Post subject:

What position is your gearbox mode switch in?
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Boozy nights · Posted: Thu Jun 16, 2005 8:38 Post subject:

Could be time to change the gearbox oil?
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dustylegs11 · Posted: Thu Jun 16, 2005 17:09 Post subject:

are we talking over drive switch Rob? if so, its pushed in, when i let it out the revs go higher, so i know that that is not the problem.

Gearbox oil? could that cause the problem? if so, i can try replacing it.

i do know that i have had a bit of smoke out the pipe, but only when i give it a bit of welly, so not all the time.

thanks guys :D
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Oldskool Beat · Posted: Thu Jun 16, 2005 18:53 Post subject:

dustylegs11 · Posted: Thu Jun 16, 2005 19:03 Post subject:

Hi Beat, well i will go and have a look, but i do know that i have not moved any switches or anything :? will post back later after gone out for a run about in her and looked at the AT switch in a short while.
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dustylegs11 · Posted: Sat Jun 18, 2005 7:50 Post subject:

well....... everything looks to be okay regarding the switches, she is still holding onto the revs for longer and changing gear at about 5 to 8 mph over her normal gear change, i then have to drop speed and she holds that gear. 40 mph is a real pain, as she has always changed gear on 40 and all was well, i now have to go over to about 45 mph for her to change gear, then drop my speed :? I'm not stuck with high revs due to OD switch as she still drops a gear when i use it. She also ticks over like normal, so I'm a bit lost.....I'm not that good with engines (it's a girl thing) Embarassed

but Craig my better half has no idea. Could it be the gearbox oil then?
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Boozy nights · Posted: Sat Jun 18, 2005 9:41 Post subject:

Either that or buy a 300 Laughing

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Joey · Posted: Sat Jun 18, 2005 15:33 Post subject:

check if the kickdown linkage is sticking "Dusty" that may be the problem ?????????.

Joey
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dustylegs11 · Posted: Sat Jun 18, 2005 16:53 Post subject:

Mark.....thanks for the tip matey, but I'm an L400 girl as you know Wink

Joey......that has been said to me b4, is that anything to do with the OD switch or the AT switch :? sorry but i have no idea what or where the kickdown linkage is. Or what to do with it Embarassed

i will have a look using search, see if it on here. Thanks so much. :D
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downunderleigh · Joined: 04 Apr 2005 Posts: 56 Location: Western Australia

Hi dustylegs11,

Might I ask how they got dusty in that position?

Alright!! I won't ask again! Twisted Evil

Sounds to me like the A/T switch on the dash has been moved to the "power" position. This should show with a "PWR" light on the panel just below the rev counter. It would be worthwhile to try moving that switch while you monitor the lights. At least to check if the lights are working. Centre position is Normal with no light. Top pressed is the PWR position with light as above, and bottom of switch pressed is the "HOLD" position with a light at bottom of rev counter, next to the other one.

Try driving in the HOLD position, it should cause the A/T to start off in 2nd gear but it should also shift earlier. Whereas the power position causes the A/T to shift gear at a higher throttle position.

It may be possible that your TPS (throttle position sensor) has shifted and voltage to the A/T computer has varied, telling the computer to shift gear at higher revs. If this turns out to be the case, it can be adjusted by your mechanic to cause shifts to happen at lower throttle setting so that your shift at 40mph is okay again.

There is another scenario, in that, if the engine has lost power lately, it could require extra pressure on the accelerator to achieve the same speed and the TPS and computer would adjust the gear change speed accordingly.

I hope this gives you some clues as to what path to follow to sort your problem.

Cheers :D
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dustylegs11 · Posted: Sun Jun 19, 2005 8:11 Post subject:

Leigh thanks so much for all that info :D I will take her out again today and try what you have said, i will post back what happens, just to let you know there has been no loss of power and still starts first time, still drives great. Thanks again Wink

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dustylegs11 · Posted: Sun Jun 19, 2005 16:22 Post subject:

okay, it's now sorted :D went out a short while ago, still had the problem, then dropped the speed down to under 20 mph and switched the AT switch through all settings, and correct lights came on. Then set off again like normal and guess what she now changes gear spot on 40 and 60 mph, just like she used to b4 the problem started, I'm a well happy bunny :D thanks so much again for all your help Wink

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