95 Chevy Lumina APV 3.8 Stalling Problems

[tinawooley]

Originally Posted by bbaz

It turned out to be a bad O2 Sensor, that was the first thing we replaced but unfortunately we received a defective part..

The way we tested was to just unplug the O2 sensor and drive the car with the O2 sensor unplugged. The van drove much better. Drove 95% better

Try driving your van with O2 sensor unplugged and see what happens. of course your "Service engine Soon" light will come on as a result of the O2 sensor unplugged.

Good Luck... let me know if this helped

Thanks so much for responding. Unfortunately this made no difference. It seems to idle fine when it's cold. Once it warms up or we put it in reverse or drive it starts sputtering then dies. We just can't seem to figure out what it could be. We've checked the IAC. It was dirty but measured at 1 1/8 mark. Cleaned it and cleaned the throttle body. Replaced spark plugs and wires. Checked and replaced all vacuum hoses. Put in a new fuel filter and air filter. I read that if it was th crank position sensor that the van wouldn't start at all so I'm not sure if that's a possibility. Checked the PCV valve and it's good. We are also having issues with the windows not rolling up or down and the wipers work when they want to. Is it possible that this could be a grounding issue? Would grounding problems cause the van to stall and die? Thanks.

[LMP]

Originally Posted by tinawooley

....the wipers are working when they want to. .

http://www.automotiveforums.com/vbul...d.php?t=677547
http://www.automotiveforums.com/vbul...d.php?t=512424

[tinawooley]

Originally Posted by LMP

http://www.automotiveforums.com/vbul...d.php?t=677547
http://www.automotiveforums.com/vbul...d.php?t=512424

I have read in other forums that the wipers are a common issue. I'm figuring that they are a seperate issue intirely but I wanted to list all problems. You never know, it could the common wiper problem or it could be part of a different problem. Just trying to paint a "whole" picture. I could have 3 seperate problems.....1. windows, 2. wipers, and 3. stalling
or they could be symptoms of one problem. I'm not really sure yet. At this time, I'm treating them as seperate issues and mainly focusing on the stalling since it's left me stumped and I need the van running. Thanks.

[bracho]

I have a 1995 chevy lumina mini van 3.8 engine. I would be driving down the road at 60 and it would die. The gas gauge would go to full or emty and the temp. would go to hot light come on chech engine light come on. I would put it in neut. and restart it and we go again. sometimes it will run for 10 miles sometime 1 mile. Sometimes 3 days and not stop. It gets worst. Now it won't start. If I try to start it and it don't start and if I leave the key on until the lights go off and try to start it it will start. What can I do to make this thing run? We put new key switch in checked wires and vacum lines. Would or could it be module?

[Tech II]

'95 is a GM transition year, and it's hard to retrieve codes....

when it won't start, check for spark, fuel pressure, and injector pulse....

[bracho]

Thanks I will try that. Any other suggestions

[RobertWalter]

Mine was a bad fuel pressure regulator.