Stalls out sometimes

Engine wants to stall when throttling, will idle fine. No codes present on vehicle. No fuel smell. Plugs were changed about 6 months ago, new wires also. Doe, s not stall completely out more like a hesitating condition under load.

Thanks for this post I got a new crankshaft sensor for $76.00 never had the problem again I love this site.

Thanks

2001 Pontiac Montana

I went today to take my daughter to work and the van started fine. Started to back out of driveway and it shut off and battery light came on. It restarted every time, but then would just shut off right away. I'm just not sure whats going on.

My 2001 montana extended suddenly started stalling. It would start right up again. After two weeks, one time it stalled and wouldn't start till. The next morning it started fine again. Now it is still stalling and very difficult to start. Are the stalling and not starting one problem or two? Could the stalling be caused by a bad ignition switch-a mechanic suggested this but I don't understand what the ignition has to do with stalling once the car is started.

Thanks. Will this take care of both the stalling and not starting?

Hi I have a 2001 montana and it's stalling backfireing cutting out during aceleration. Please help

I put a new fuel filter on and the old one was so pluged I couldn't blow through it. When I dumped the excess gas out of the filter it was black and had black debree in it. The van work good for a couple of days. I thought it was fixed then it started doing the samething I run a tank of injection cleaner though it then filled it with high test gas hasn't acked up yet but i'm only on the second tank since the filter and injection cleaner.

Well that didn't fix it but what the problem was a egr valve sticking open well what a fun job 3 hours later and hands all scrathed up.

I have been having a prob with 1999 pontiac montana van. After I have been driving for a while and the engine gets warmed up, when I stop, or put the can in park, it dies. The idle goes up and down and then it just dies. The dealer cant find anything wrong on the computer. They have suggested injector cleaning. This weekend we were coming home and the engine light came on. I put in 90 gas instead of 89. I dont know if that would affect it. Let me know if you have any ideas on it thanks

Oil light comes on, then it shuts off while I'm at a stop light. It starts back up. Couple hours later shut off on me after exiting highway. It Will crank but won't hold a start and engine is loud then it shuts off again.

When I start it when cold idles alright for a minute then starts idleing up and down until it dies once you take off doesnt do it anymore but idles low and shakes

My 2002 pontiac montana has been hesitating, misses and stalling. Would a TPS sensor cause this? I've replaced the preconverter o2 sensor ( the one that affects pcm and air/fuel ratio) and still problems. Heres the thing it runs fine until it warms up. I can rev it in park and its fine warm. I go to test it and drive down the road and starts all over again. If I dont accelerate too much I can make it back home. Would the post converter cause this problem? I hooked up a scan tool and read the parameters to the postconverter o2 sensor and the voltages aren't what the car manual says. It says it should hover around 0.40 volts and change slightly however my readings indicate that its around.59 and when I accelerate it goes below 0.40 volts. Is this normal or is it something else as the price of an o2 sensor is $150 and I already bought the wrong one! Thanks

A bad Tps sensor usually makes the rpm's bounce around. Is there a MIL light on?