Stalling

[Boris]

Ok, this has happened to me a few times now, i did a search for stalling but my scenario isn't any of them.

Ok, now i have to mention this is that, my starter motor is caput.

So what happens is, when the revs drop, the needle goes down to a line, very close to the 0rmp mark, around 250rpm, then go up to the normal rpm... Now this is sorta normal, as it always happens, but i think because of this it stalls sametimes.

When it does stall, the needle goes, very low, around 200 rmp... So my question is, does anyone else manuals needle go so low?

I think i know why this is happening, but i need reassurnce, and support for my theory, the reason why i think it is happening, is because of the oil. I think my oil might be a little bit thik for the engine, and when it goes so low in the rev range there is more friction because of the viscosity.

If i get positive feedback for my theory i will change the oil, as it it really bad at the moment, because if i stall at a light, i then can't start the car, as my stater moter of caput, so then if i'm lucky and i have a passenger, i get them to help push start my car!

Speaking of the above, my gf was driving the car today with me, and it stalled at a busy light, so when the light went green. i was pushing it, and she started it, BUT... cos she went forward like 10 meters and stopped to wait for me te get in, but in the mean time there was like a 3 car rear ending accident like 4 cars down! So today the above sorta was 20% responsible for the accident! lol... i will stop rambling now..

P.S. Sorry for all the questions i have been asking lately!

[MADFTO]

When you are talking about revs dropping, does it drop of its own accord (Ie while idling) or does it happen when you drop the revs when you come to a stop??

If it is the latter, are you running a stock exhaust system or aftermarket?
Also, what if any mods are you running (I don't have the time to do a search on what mods you've got =) )

Could be something as simple (?) as the idle stepper if it's the first of the two reasons =)

[Boris]

It drops when you come to a stop, like if your in 2nd, stop at a light, put it into N, then it drops to like 200rpm, then it goes up to 700rpm... and keeps idling at that speed... like normal...

Mods are, 2.5" exhaust from the cat + POD filter. the rest don't matter...

[Jono]

Does your fan turn on when the Rev's drop to 200?

Stalling maybe because of the silver paint hahahaha? jks.

Jono

[Boris]

Stalling maybe because of the silver paint hahahaha? jks.

lolz, very funny....
Silver is nice u know, jst cos you got "Fast Red"...

Does your fan turn on when the Rev's drop to 200?

Very hard to tell, as i'm in the car, and stopping to a light or something.

Tommorow my starter motor gets looked at, so after that i will change the oil & filter and see what will happen...

[Boris]

Ok, i think i fixed it today.
After monitoring, and being logical. I found out the cause.

Initially i though it was a crappy, or sticky linkage, where the accelerator cable comes to. But that was not the case.

Now, i noticed that my revs fluctuate, when say reving at 2k.. by about 200rpm, this logically is: Air/Fuel mixture... or a vacuum problem which i think is related to the Air/Fuel ratio.

After close inspection of my vacuum hoses i found that one of them was split slightly and the tee for the vacuum gauge was pretty dirty inside.
It was hard to see the split but after bending you could see it.

Having fixed that, it runs much better, and the vacuum gauge actually works now. I haven't given it a proper run yet, but i believe that problem could of had an effect on the performance of my fto!

All i have to work on now, is the oil temp gauge now
If any of my theory is incorrect then please correct me...

[smorison]

without having seen the car it all sounds about right.

[Craig]

i've got the same problem... 2nights ago.. when the engine was cold.. approaching a round about... went down to 2nd gear slowly... and the engine stalled... its done it once before... but i do notice often that the revs drop almost to stalling quite often when i goto N
so i might check the vacuum pipes... althought i think it might be something else..

[Boris]

Yeah, you are probably right, it is always something more

Well, the above is still not 100% confirmed, I haven't driven my car that much to actually say it works.

It still goes down to low revs, for example bout 300/400rpm, when you pop it into N and stopping. Then comes back up to idle...

I don't think it's as bad atleast...
I also noticed, that after i fixed the vacuum hose my Pod filter makes more noise when you tap the accelarator, and release it quickly! Or maybe that's just me dreaming again

Atleast it didn't stall this morning when i drove it to the mechanics today...

[Craig]

well thats an added bonus that it didn't stall on the way...
ive just gotta find the time to check it out

I hope your problem is solved anyways

[payaya]

How can stalling be caused by your starter motor?

Did you check the obvious? The stepper motor?

from revs fluctuating, to higher revs in nutrual sound like a stepper problem.

IF your car stalls, in park and nutural rev increase more than usual, revs drop when AC is turned on, during cold start when put in drive, revs should be higher than warm idle rpm, not just drop to normal warm rpm etc.

not saying this is your problem and you should take offence from what im saying but every third post is about idle problems, and almost always its the stepper motor.

So guys if you suffer idle problems 95% of the times its the stepper! Every bloody post always ends up being a stepper problem, check the stepper!