Car Forum / MINI / February 2005
1994 Chevy Lumina stalls at idle
|
|
Thread rating:  |
rosepetal209 - 02 Feb 2005 18:29 GMT My 1994 Chevy Lumina minivan drives great when its in motion but when it warms up past the quarter mark on the heat gauge it will die when your at a stop. It does great at a quick stop,like a short red light or a stop sign but when Im sitting at a long red light it just dies. It will start right back up but this is annoying. The brain has been replaced and the ECM has been replaced but the van still stalls at a long idle. What could the problem be?
The Muffin Man - 02 Feb 2005 18:32 GMT I think you may have posted to the wrong NG. This one is devoted to the Austin/Morris/Rover Mini.
The Muffin Man
> My 1994 Chevy Lumina minivan drives great when its in motion but when it > warms up past the quarter mark on the heat gauge it will die when your at [quoted text clipped - 3 lines] > ECM has been replaced but the van still stalls at a long idle. What could > the problem be? Fitzy - 02 Feb 2005 20:59 GMT Yep, wrong NG,,,,,,,,,,,
but it sounds like your oxygen sensor in the exhaust is duff, Fitzy
>I think you may have posted to the wrong NG. This one is devoted to the >Austin/Morris/Rover Mini. [quoted text clipped - 8 lines] >> ECM has been replaced but the van still stalls at a long idle. What could >> the problem be? rosepetal209 - 04 Feb 2005 16:43 GMT Oxygen sensor replaced. Van still stalls out on idle.. Am considering driving it into a canel and walking away smiling (lol). Im a Chevy girl and I am very disappointed in this vehicle. Next thing on the list is to replace timing positioning sensor (crank sensor)(I think thats what it was called) and the injectors. Hopefully that will fix it.
(-AD-) - 04 Feb 2005 18:10 GMT And Elvis was sitting next to rosepetal209 in the spaceship, which I thought was kinda weird, but then they turned to me and said:
> Oxygen sensor replaced. Van still stalls out on idle.. Am considering > driving it into a canel and walking away smiling (lol). Im a Chevy girl > and I am very disappointed in this vehicle. Next thing on the list is to > replace timing positioning sensor (crank sensor)(I think thats what it was > called) and the injectors. Hopefully that will fix it. Hesitate to jump in on an off-topic thread, but hey, an engine management problem makes a change from leaky float valves on SU carbs...
I'm assuming that the shop has read the ECU memory and not found any faults recorded? - they're not simply blindly swapping parts until something fixes it?
I doubt the problem is with the engine position sensor. They *can* develop a tendency to go flakey when they are hot, but the typical symptoms of this are that a hot engine cuts out completely and fails to restart, but will often restart after being allowed to cool for a while. (most engine management systems can't operate properly if engine position data is lost, so they command an engine shutdown).
I also doubt that it's the injectors. Faulty injectors tend to cause problems all the time, whether the engine is hot or cold. Any repair shop that's properly equipped to deal with electronic engine management systems should be able to test the injectors first to see if they need replacing.
From what you've described, my best guess (and it *is* a guess, so no guarantee) would be a flakey temperature sensor. The ECU is still running in cold cycle even though the engine is warm, because the sensor is still telling it that it's cold.
Also, sometimes you shouldn't hurry to blame the fancy complicated electronics until you've eliminated more simple basic problems - a failing sparkplug, worn-out ignition leads or a dodgy ignition coil still account for more engine problems than anything in the electronics.
Nicholas Bales - 07 Feb 2005 09:38 GMT > Oxygen sensor replaced. Van still stalls out on idle.. Am considering > driving it into a canel and walking away smiling (lol). Im a Chevy girl > and I am very disappointed in this vehicle. Maybe it's time to buy a REAL car, just to stay on-topic with this forum...
rosepetal209 - 15 Feb 2005 17:42 GMT funny you say that because I happen to own 2 "real" cars already....1969 el camino and 1972 chevelle. Needed something bigger cuz I have kids.....Now let me ask you something, if my post is bugging you why even respond to it? Just keep moving on to the next one. I assume you own a "real" car? But hey thanks for stopping in and reading all the threads to this post your advise was....errr helpful??? ok bye
Nicholas Bales - 16 Feb 2005 14:33 GMT > funny you say that because I happen to own 2 "real" cars already....1969 el > camino and 1972 chevelle. Needed something bigger cuz I have kids.....Now > let me ask you something, if my post is bugging you why even respond to > it? Just keep moving on to the next one. I assume you own a "real" car? > But hey thanks for stopping in and reading all the threads to this post > your advise was....errr helpful??? ok bye Well, you're posts are completely off-topic for this newsgroup. A "real" car for this newsgroup is a Mini, not some american behemoth. If you had read even one post in this group before posting (which is a fairly basic rule of netiquette) you would have noticed that on your own.
Fitzy - 17 Feb 2005 09:48 GMT >> funny you say that because I happen to own 2 "real" cars already....1969 >> el [quoted text clipped - 8 lines] > read even one post in this group before posting (which is a fairly basic > rule of netiquette) you would have noticed that on your own. <<<<<<<<<<<<<<<<<<<<< Hi Nic There are times when off topic questions come in to this NG,, I personally find it "A challenge", firstly to interpret what the poster is saying about there problem, then converting it in to mechanic/ technician language, Then trying to help by offering possible solutions, The final posting from rosepetal is a very nice "Thank you"
Fitzy
rosepetal209 - 02 Feb 2005 18:48 GMT Tell me how to delete the thread and itll be gone. Sorry
Graham W - 02 Feb 2005 19:39 GMT > My 1994 Chevy Lumina minivan drives great when its in motion but when it > warms up past the quarter mark on the heat gauge it will die when your at [quoted text clipped - 3 lines] > ECM has been replaced but the van still stalls at a long idle. What could > the problem be? Problems with injected cars are rarely caused by ECM failures. Much more common is sensor failures or wiring issues.
In this case, the car runs fine cold, but idles poorly when warm?
Look for things which are different when it's warm. For example:
Injection systems run open loop when cold and do not read the oxygen sensor until they warm up. Oxygen sensor faults therefore typically only show when the motor is warm.
Any temperature sensing component which looks to the computer as if it's reading cold when it fails will result in poor running when warm.
Find a mechanic whose diagnostic skills extend beyond replacing expensive components until the problem goes away or buy a workshop manual and work through the diagnostic procedure described in it yourself.
If you want to have a go at it yourself without the manual, as a first step, carefully disconnect and reconnect any eletrical connections in the engine bay which relate to temperature sensors or the oxygen sensor. Sometimes the contacts corrode over time. Then see if you can find test procedures for the oxygen sensor and temperature sensors.
rosepetal209 - 03 Feb 2005 08:58 GMT Thank you so much for the info. I will try your suggestions and also thank you for not making a big deal over the fact that I apparently posted under the wrong section, the funny thing is I did finally place this thread under the right catagory and nobody has answered it so at least my mistake got me some help. Thanks for the help and your patients.
Rob - 02 Feb 2005 22:38 GMT > My 1994 Chevy Lumina minivan drives great when its in motion but when it > warms up past the quarter mark on the heat gauge it will die when your at [quoted text clipped - 3 lines] > ECM has been replaced but the van still stalls at a long idle. What could > the problem be? Whats a 1994 Chevy Lumina minivan?
Graham W - 02 Feb 2005 22:53 GMT > Whats a 1994 Chevy Lumina minivan? Something which occupies about twice as much space on the road ir in a carpark as a Mini.
F.-Timo Ewald - 02 Feb 2005 23:13 GMT > Whats a 1994 Chevy Lumina minivan? See it at google.com: http://images.google.com/images?q=Chevy+Lumina+minivan&hl=de&btnG=Google-Suche
Timo
Rob - 03 Feb 2005 02:38 GMT >>Whats a 1994 Chevy Lumina minivan? > > See it at google.com: > http://images.google.com/images?q=Chevy+Lumina+minivan&hl=de&btnG=Google-Suche > > Timo Is this a rebadged Japanese van - the pictures (thumbs) are not too clear and no big ones.
Graham W - 03 Feb 2005 07:37 GMT > Is this a rebadged Japanese van - the pictures (thumbs) are not too > clear and no big ones. No, they're a home bred american animal. Japanese vans and light commercials are quite rare in North America.
AustinMini.OsiTech.Net - 03 Feb 2005 10:14 GMT Not true Sir.
 Signature _________________________________ http://austinmini.ositech.net Looking for cheap Austin Mini, Wagon, Clubman, Mokes and other variants for sale in the USA.
>> Is this a rebadged Japanese van - the pictures (thumbs) are not too >> clear and no big ones. > > No, they're a home bred american animal. Japanese vans and light > commercials are quite rare in North America. Graham W - 03 Feb 2005 12:58 GMT I wrote:
>>No, they're a home bred american animal. Japanese vans and light >> commercials are quite rare in North America.
> Not true Sir. The Lumina is a Japanese van? Colour me skeptical.
Or Japanese commercials ae not "quite rare" in North America? When I was in Vancouver and Seattle in 1997, I saw just one Japanese ute in 4 weeks. I saw *no* Japanese vans such as the Hiace.
In Australia vehicles like the Toyota Hilux and Hiace utterly dominate the light commercial market. By comparison with Australia, Japanese light commercials were quite rare in North America in 1997. In the UK I suspect the market is dominated by european vehicles like the Ford Transit rather than the Japanese equivilents. Utes seem to get ued far less there, presumably because of the climate.
The Muffin Man - 03 Feb 2005 22:54 GMT >I wrote: > Utes seem to get ued far less there, presumably because of the climate. True ute drivers like me are few and far between. People tend now to go for the gigantic crew cab things because they want to be a pickup driver but want the practicality of a car ie four seats and dry luggage ;D
Mini Pickups Forever!!
The Muffin Man
AustinMini.OsiTech.Net - 04 Feb 2005 05:22 GMT "Or Japanese commercials ae not "quite rare" in North America?"
There's quite a bit of Japanese commercial trucks here in the US.
I do have to apologize though that when I think NA I usually don't think of Canada and Mexico but they are NA nonetheless.
 Signature _________________________________ http://austinmini.ositech.net Looking for cheap Austin Mini, Wagon, Clubman, Mokes and other variants for sale in the USA.
>I wrote: > >>No, they're a home bred american animal. Japanese vans and light [quoted text clipped - 15 lines] > than the Japanese equivilents. Utes seem to get ued far less there, > presumably because of the climate. F.-Timo Ewald - 03 Feb 2005 09:40 GMT >>> Whats a 1994 Chevy Lumina minivan? >> See it at google.com: >> http://images.google.com/images?q=Chevy+Lumina+minivan&hl=de&btnG=Google-Suche > Is this a rebadged Japanese van - the pictures (thumbs) are not too > clear and no big ones. You can click on the thumbs - twice, and they probably will load a little larger ;-)
CU,
Timo
TurboJo - 05 Feb 2005 08:30 GMT http://images.google.com/images?q=Chevy+Lumina+minivan&hl=de&btnG=Google-Suche
> Timo So it's like a Bedford CF then.
http://www.eurolab.at/~groebner/bedford/bedfordE.htm
Graham W - 05 Feb 2005 11:07 GMT > http://images.google.com/images?q=Chevy+Lumina+minivan&hl=de&btnG=Google-Suche > [quoted text clipped - 3 lines] > > http://www.eurolab.at/~groebner/bedford/bedfordE.htm Not really. It's full of seats, more like a VW Kombi bus.
|
|
|