View Full Version : TJ VR-X Issues
Mutelabs
07-01-2009, 07:44 PM
Hey all got a few little niggly issues I'd like some feedback on.
Car is a 2000 TJ VR-X (Semi-Auto 5sp.)
First Issue:
After driving for about 10minutes, when sitting idle at let's say traffic lights, or generally not moving, when the car is in First Gear (Drive), or in First via Sports Shift, the car has this rough kind of idle but the rev meter doesn't budge at all.
In Neutral and Park the car is perfectly sound and doesn't shake/vibrate at all. It's not violent however it is noticeable. It was more noticeable after I had a service which replaced fuel filter and the sparkies. I've had two very different opinions.
First one is a "spitting timing chain" and the other was in regards to the engine mount, but it just seems very weird that it's not noticeable in Neutral and Park.
Second Issue:
Transmission - I've had the car for about 5-6months and I do boot it occasionally, but when I first got the car it was boot it, then drop all acceleration and the car would either (I'm assuming) drop it in forth/fifth due to the decrease in wanted acceleration (I have since stopped this practice), however recently I have noticed going from 3rd to 4th gear (and this is usually around the 60km mark where I would drop the gas) the gear change is delayed and the car sounds like it's over revving this only lasts for a second or two however it is noticeable.
Since being less demanding (and less stupid) it hasn't been as bad, however it does come and/go every so often. Is this something I should be concerned about?
Cheers in advance!
with regards to the gearbox issues, check to see there is enough fluid. The flaring and delayed changes can be caused by this. Maybe flush it through and replace fluid completely.
With vibrations, it wont be the chain, since the 6G74 uses a belt. Sounds like a normal magna to me lol they are renowned to be quite harsh on idle when in drive. If its really bad it could be a mount.
Lucifer
07-01-2009, 08:16 PM
Your motor doesn't have a timing chain, so rule whatever a 'spitting timing chain' is out of the equation.
What you're experiencing is normal. You can go back to Mitsu and have them reset your base idle, or you can do it the quick and nasty way of adjusting the idle bypass screw on the throttle body. And before anyone says this is bad for your car, i've had it this way for over 6 months without problem.
With regard to the gear changing, are you talking about it flaring in between gears? Should just need a tranny fluid change.
doddski
07-01-2009, 08:17 PM
in regards to the trans delaying into its next gear when off the gas - sounds like it learnt your more enthusiastic driving style and is 'expecting' you to still be driving it that way.
will take a short while for the trans to 'relearn' a more sedate driving style - the fastest way, pull the battery terminal wait 30mins reconnect and go for a gentle drive.
(ecu will also need to relearn how to idle too - will result in stalling when ac on for a few mins or so - a search will give you more info there)
Mutelabs
07-01-2009, 08:50 PM
Thanks for the replies, it's appreciated. Well if the rough 1st gear idle isn't anything to worry about then I'm relieved.
In regards to the tranny, the ECU comment might be spot on, after I did take it easier for a while and didn't notice it much around then.
However if it comes back without booting it a bit I'll have the fluid checked.
Thanks again for the information.
Supra_t
08-01-2009, 07:38 AM
I was going to start a thread on the same two issues as i also had worries about my car doing both these things.
My auto flares from second to third under throttle though, but found today the fluid is fairly dirty so im hopin a good flush and new fluid will sort this problem out.
With the rough idle my car does the exact same thing, seems this is common and something we need not worry to much about.
Blue Lightning
08-01-2009, 08:58 AM
Can't recommend a good flush and clean fluid enough for the 5 speed auto. Just runs so much "happier" :P
Mutelabs
08-01-2009, 09:15 AM
Just on the fluid change....
Is it difficult to do? For a newby who knows next to nothing (well I know how to take stuff apart and put it back)?
And if so what fluid am I after anything specific? recomendations?
Lucifer
08-01-2009, 10:19 AM
Just on the fluid change....
Is it difficult to do? For a newby who knows next to nothing (well I know how to take stuff apart and put it back)?
And if so what fluid am I after anything specific? recomendations?
You're after the genuine mitsubishi transmission fluid, anything else seems to cause the box to either die or run like a pile of **** (worse than normal). Madmagna has a fluid he likes to use which he says doesn't have any issues with the transmission but I can't remember what it's called.
Blue Lightning
08-01-2009, 10:30 AM
Just on the fluid change....
Is it difficult to do? For a newby who knows next to nothing (well I know how to take stuff apart and put it back)?
And if so what fluid am I after anything specific? recomendations?
Cost around the $300 mark at your local Mitsubishi (but I have the AWD model and got the transfer case & rear diff as well) so will be cheaper. To do it yourself, you will need around 10 litres of Genuine Mitsubishi transmission fluid (this is recommended by the majority of people), 5 litres to flush and around 5 litres to fill. There are instructions somewhere on this site, if you do a search, or read the service manual (downloadable fro the second post under tech torque).
regards
VRX257
08-01-2009, 12:01 PM
Mutelabs,
I was concerned with the rough idling as well, but it seems to be the general concensus that it is normal, so, I am happy about that.
With the transmission, try this first, before doing anything else. I have the same 5 speed tiptronic.
1.Find a long stretch of empty road
2.Accelerate from 0-60km/h in D (not tiptronic mode) and make sure you are in 2nd gear by the time you hit 60.
3.Let foot off accelerator abruptly and let the autobox change up by itself all the way to 5th.
4.Brake to a complete standstill.
5.repeat steps 2-4 three times.
All my transmission issues were solved after that and it has been 4 months since retraining the gearbox. No flaring at all and gearchanges are smooth as. Guess what, the transmission fluid has not been changed yet since new (now sitting at 70000km).
Let us know how you went.
Supra_t
09-01-2009, 02:27 AM
Mutelabs,
I was concerned with the rough idling as well, but it seems to be the general concensus that it is normal, so, I am happy about that.
With the transmission, try this first, before doing anything else. I have the same 5 speed tiptronic.
1.Find a long stretch of empty road
2.Accelerate from 0-60km/h in D (not tiptronic mode) and make sure you are in 2nd gear by the time you hit 60.
3.Let foot off accelerator abruptly and let the autobox change up by itself all the way to 5th.
4.Brake to a complete standstill.
5.repeat steps 2-4 three times.
All my transmission issues were solved after that and it has been 4 months since retraining the gearbox. No flaring at all and gearchanges are smooth as. Guess what, the transmission fluid has not been changed yet since new (now sitting at 70000km).
Let us know how you went.
Was this recomended by anyone or did you come up with this yourself?
Sounds a bit dodgy thats all (as does the 70,000kms without a service), but hey if it works i'll try it.
Was G-techin my car the other day (0-100) and the flaring and delay from 2nd to 3rd was annoying me cause it wants to shift from 2nd at about 96kms, so it was killing the time waiting for third gear to change then get over the 100.
Mutelabs
09-01-2009, 05:07 AM
...and the flaring and delay from 2nd to 3rd was annoying me cause it wants to shift from 2nd at about 96kms, so it was killing the time waiting for third gear to change then get over the 100.
I've found second's range to be able to hit the 100mark, however in full auto that's foot to the floor before the auto changes to third (to hit that kind of speed and not have a gear change).
In regards to the 0 to 60 test I'll give it a shot when I get a chance, however as I said before it hasn't been as noticeable recently due to change in driving style.
Mutelabs,
I was concerned with the rough idling as well, but it seems to be the general concensus that it is normal, so, I am happy about that.
With the transmission, try this first, before doing anything else. I have the same 5 speed tiptronic.
1.Find a long stretch of empty road
2.Accelerate from 0-60km/h in D (not tiptronic mode) and make sure you are in 2nd gear by the time you hit 60.
3.Let foot off accelerator abruptly and let the autobox change up by itself all the way to 5th.
4.Brake to a complete standstill.
5.repeat steps 2-4 three times.
All my transmission issues were solved after that and it has been 4 months since retraining the gearbox. No flaring at all and gearchanges are smooth as. Guess what, the transmission fluid has not been changed yet since new (now sitting at 70000km).
Let us know how you went.
Gee, not changing the trans fluid sounds real smart. :doubt:
VRX257
09-01-2009, 07:12 AM
Was this recomended by anyone or did you come up with this yourself?
Sounds a bit dodgy thats all (as does the 70,000kms without a service), but hey if it works i'll try it.
Was G-techin my car the other day (0-100) and the flaring and delay from 2nd to 3rd was annoying me cause it wants to shift from 2nd at about 96kms, so it was killing the time waiting for third gear to change then get over the 100.
This was posted somewhere on here and I tried it. Hence, it was recommended by someone else, I am assuming a mechanic. Best part is, it worked for me.
Its not dodgy. The book says change trans oil only at 105k, but I wanted to change it at the last service. The guys at mitsu told me not to change as the oil was not dirty at all, and I would be wasting money. Portside guys are the best.
I guess, the moral of the story is, if it was trans retraining that was the issue. its better to try this first than to get disappointed when nothing happens with trans oil change. The trans oil change is a bonus preventative measure.
This was posted somewhere on here and I tried it. Hence, it was recommended by someone else, I am assuming a mechanic. Best part is, it worked for me.
Its not dodgy. The book says change trans oil only at 105k, but I wanted to change it at the last service. The guys at mitsu told me not to change as the oil was not dirty at all, and I would be wasting money. Portside guys are the best.
I guess, the moral of the story is, if it was trans retraining that was the issue. its better to try this first than to get disappointed when nothing happens with trans oil change. The trans oil change is a bonus preventative measure.
My bad, you are right, a thousand apologys . :shock:
Disciple
09-01-2009, 08:06 AM
Why would you ever change trans oil? What a complete waste of time!
Why would you ever change trans oil? What a complete waste of time!
huh? Because like engine oil, heat and friction slowly breaks down the oil's ability to do its job
I've found second's range to be able to hit the 100mark, however in full auto that's foot to the floor before the auto changes to third (to hit that kind of speed and not have a gear change).
In regards to the 0 to 60 test I'll give it a shot when I get a chance, however as I said before it hasn't been as noticeable recently due to change in driving style.
I'm suprised, the 4SP auto's second gear runs to 170 according to mathematics
Supra_t
09-01-2009, 12:35 PM
Why would you ever change trans oil? What a complete waste of time!
:nuts: Hope you dont have that attitude towards the oil in that nice lookin evo
Mutelabs
09-01-2009, 12:49 PM
I'm suprised, the 4SP auto's second gear runs to 170 according to mathematics
100k/m on redline 5PSD VR-X 2000.
Don't quote me on it though, that's the usual value I see, maybe 120 before initial redline
Red Valdez
09-01-2009, 02:13 PM
The guys at mitsu told me not to change as the oil was not dirty at all, and I would be wasting money. Portside guys are the best.
If yours is clean after 70,000km, I hate to see how slow you drive :P. I got my auto flushed in my TJ VR-X after 18,000km / close to 2 years and the mechanic said it had started to go off-colour. Shift quality is noticably better after a flush too.
Magna autos aren't the most reliable, so I'm not sure why people generally are so reluctant to change the fluid...
Disciple
09-01-2009, 02:41 PM
huh? Because like engine oil, heat and friction slowly breaks down the oil's ability to do its job
:bowrofl:
:nuts: Hope you dont have that attitude towards the oil in that nice lookin evo
Why change any oils at all. What a complete waste of time! lol
VRX257
09-01-2009, 10:15 PM
If yours is clean after 70,000km, I hate to see how slow you drive :P. I got my auto flushed in my TJ VR-X after 18,000km / close to 2 years and the mechanic said it had started to go off-colour. Shift quality is noticably better after a flush too.
Magna autos aren't the most reliable, so I'm not sure why people generally are so reluctant to change the fluid...
Well, I am not a sedate driver, as I do tend to push it once in a while especially since I live on the hills. I guess its how I have used the box. Common, I cant be the only person in here this lucky?!
:bowrofl:
Why change any oils at all. What a complete waste of time! lol
you know what, sarcasm at work sometimes doesn't translate
Disciple
10-01-2009, 06:07 AM
you know what, sarcasm at work sometimes doesn't translate
Yeah it doesn't go well with text on forums. Anyone who knows me, knows I'm really anal about changing oils in any car I own.
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