converter stalling at idle?
converter stalling at idle? hey, I cant seem to find anything on this. Well, i did find one earlier today but now i cant find it.
my question is basically, does a new conveter need to break in like a new motor would? I ask because my car sometimes dies when put into gear. No vacuum leaks, motor is running awseome!!! But it happens usually and im still putting the initial break in miles on the motor. From park into any gear and it drops in RPM and if i dont give it gas, it sometimes dies or it finds it way back.
i did read a thread about somethin glike this being normal with a new converter but i couldnt find it
Thanks
Edit: Also, is there a way to manually lock the converter while drivin or do i need to set that up through the pcm?
my question is basically, does a new conveter need to break in like a new motor would? I ask because my car sometimes dies when put into gear. No vacuum leaks, motor is running awseome!!! But it happens usually and im still putting the initial break in miles on the motor. From park into any gear and it drops in RPM and if i dont give it gas, it sometimes dies or it finds it way back.
i did read a thread about somethin glike this being normal with a new converter but i couldnt find it
Thanks
Edit: Also, is there a way to manually lock the converter while drivin or do i need to set that up through the pcm?
Last edited by obZidian; Apr 7, 2005 at 01:41 AM.
TECH Enthusiast
Joined: Mar 2004
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From: Australia
Its not the converter. You need to tune your idle to adjust for the less rotational mass that used to assist keeping the car turning. To do that you either increase your idle RPM by 50 or increase your IAC airflow vs IAT and IAC counts.
Originally Posted by MNR-0
Its not the converter. You need to tune your idle to adjust for the less rotational mass that used to assist keeping the car turning. To do that you either increase your idle RPM by 50 or increase your IAC airflow vs IAT and IAC counts.
TECH Senior Member
Joined: Dec 2001
Posts: 5,399
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From: Jacksonville, FL
After my TC install I had low speed "idle hunting/intermitent stalling" at low speeds coming to a stop at lights and in parking lots changing gears - increasing the in gear idle about 150 RPM cured mine.
TECH Resident
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From: Poway, Ca. where GOD and the sun always shines
I have a Yank 3000, coupled to 3.73:1 gears,and had to have the idle raised for the above stated reasons. Now when warm, my vehicle idles @ 700 RPM out of gear, 650 RPM in gear.
SteveC
SteveC
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Joined: Dec 2004
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From: DETROIT,MI
Just have the idle increased. I had the same problem after I had the Vig 2800 put in. It would stall backing out the driveway, and in low speed driving. After I had the idle increased about 100 rpm everythings fine.
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Originally Posted by Flame Throwing SS
That is exactly it! What size converter is it? This is especially true on 10" (275mm) or smaller converters.
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Originally Posted by DrkPhx
You need to do the idle relearn procedure. This should help.
thanks
Last edited by obZidian; Apr 8, 2005 at 12:46 AM.
Originally Posted by 2001NBMZ28
After my TC install I had low speed "idle hunting/intermitent stalling" at low speeds coming to a stop at lights and in parking lots changing gears - increasing the in gear idle about 150 RPM cured mine.
So if i had the desired idle in gear increased by 100-150 rpm, it should resolve this problem? If this is it, than im a bearded gnome!!!!! I only need a tune software to have it done...
besides this, is there anything else that might cause this....
Also, this is still in the beak-in time frame of the converter and motor, would this also cause any similar problems?
thanks ya'll, very helpful,
Angel
You do not need tuning. If idle relearn doesn't work, then you need to open the TB blade just a tiny bit by turning the idle set screw about a 1/2 turn . Reset the TPS sensor when you are done. For more info on doing this, look for a sticky thread in PCM entitled "Stop drilling those throttle bodies" or something similar.
Originally Posted by Ragtop 99
right near where the cable attaches. It acts a bump stop
so wat do you guys think, will this method make my car idle smoother, with out stalling in when put into gear?
Originally Posted by obZidian
could you please detail this procedure, i cant seem to find an acurate step by step...
thanks
thanks
"PCM Idle relearn Procedure"
Automatic Transmission
1. Turn OFF the ignition
2. Restore the PCM battery feed
3. Turn off the A/C controls
4. Set the parking brake and block the drive wheels.
5. Start the engine.
6. Allow the engine coolant temperature to reach 176F.
7. Shift the tranmission selector into the drive range.
8. Allow the engine to idle for 5 minutes.
9. Turn ON the A/C controls.
10. Allow the engine to idle for 5 minutes.
11. Shift the transmission selector into the park range.
12. Allow the engine to idle for 5 minutes.
13. Turn OFF the A/C controls.
14. Allow the engine to idle for 5 minutes.
15. Turn OFF the engine for 5 minutes.
The above procedure is assuming you have disconnected the PCM or battery so you need to disconnect the battery for at least 15 seconds before doing the above procedure. Some just disconnect the PCM fuse (or both). Either way will work. After completing step 15, drive the car with a combination of city and highway driving for at least one complete drive cycle which I believe is 18 minutes (between ignition ON and OFF). Since the PCM is adaptive this will help. Generally after 3 complete drive cycles the idle should be set. If not, you will have to slightly bump up the idle.
Hope this helps.
Last edited by DrkPhx; Apr 10, 2005 at 10:05 AM.
hey, that helps alot....
I spent the whole morning since 9:00Am, just got back now!!!, driving her around and she feels ridiculously strong!!!!! I still havent given it WOT but on a few kickdowns, i was very surprised how quickly the car rose up in MPH.
As for the stalling, it seems th more i drive it the better. It is still a bit hard to have it not stall when i first start her up, but it seems like its trying instead of a dead drop.
I really appreciate your help folks, i'll let you all knwo how eveything turn out.
If anyone has any other suggestions, feel free, as this is a public forum, to chime in..
thanks
I spent the whole morning since 9:00Am, just got back now!!!, driving her around and she feels ridiculously strong!!!!! I still havent given it WOT but on a few kickdowns, i was very surprised how quickly the car rose up in MPH.
As for the stalling, it seems th more i drive it the better. It is still a bit hard to have it not stall when i first start her up, but it seems like its trying instead of a dead drop.
I really appreciate your help folks, i'll let you all knwo how eveything turn out.
If anyone has any other suggestions, feel free, as this is a public forum, to chime in..
thanks
