stalls out sometimes

This sounds like a classic crankshaft angle sensor that is going bed here is a guid to help you see step by step what to do with a diagram below to show you on your car.

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

this guide can help as well

https://www.2carpros.com/articles/car-cranks-but-wont-start

Check out the diagrams (Below). Please let us know what happens.

Cheers

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.

HAs the check engine light come on? Have you checked fuel pump pressure?

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.

check fuel pressure with a gauge auto parts rent it. then clean the throttle plate on both sides an diac hole with choke cleaner.

Heres a guide to show you how

https://www.2carpros.com/articles/throttle-actuator-service

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

I tmight yo didn't say if check engine light was on or not. low fuel pressure causes tehse type of problems.

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..

[quote:5003a8f568="wally83"]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..[/quote:5003a8f568]

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

You don't have to go top the stealer, many independent garages can help.

Anyways the 3.4 motor is common for intake manifold leaks. My guess the check engine light will help reveal that. One way to check the intake gasket for leaks is to spray carb cleaner or similiar around the gasket and listen for an idle change. I have heard of using an unlit propane torch to do the same. The thought makes me a little nervous though.

Don't procrastinate on this, if the gasket rupture in other ways, serious damage to the motor can results. I have seen these suck oil or coolant into the combustion chamber and the low fluids create expensive problems.

One more thought- Use whatever octane the truck calls for. The PCM expects it. Check owner's manual if not sure.

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.

Check the oil pressure with a gauge and also the oil pressure switch-Sounds like engine bearings

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

Clean out the idle air control valve and see what happens

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?

Your really going to waste a lot of money here approaching this in this manor. There are dozens of things that can cause symptoms as you describe but the 0/2 sensors are not one of them. The rear sensors have no effect on engine performance at all. This could be a bad mass Air Flow sensor but I still wouldn't replace it without some testing to verify it first.

i have a 99 pontiac montaina V 6 when i put it in reverse it wants to stall out and it does and it soometimes want to do the samething in drive have checked the vacums and they are alright and put in a new fule censuer and punp but still have the problem it also revs up and wants to jump at stop lights.

For a start, I'd check anything that has to do with idler air system. Any applicable trouble codes? Some of the national brand autostores will check codes for free.

If your going to work on your own vehicle, at the least, an obd2 code reader is handy.

Just to add, it runs ok off idle? There is a low idle code, p0506, don't know if that that code is set on your vehicle? You would check for any air restriction and check the iac.

Also your intake manifold gasket has been known to leak.

I hope you can help with this one. I recently replaced all 3 ignition coils in my 1999 Pontiac Montana. About a month later it started acting like it was gonna stall. Then one day I turned the corner and car stalled. I could get it to turn over but it wouldn't start. Eventually some guys came over and got it started and I made it home a few block away. After that I left it parked and drove it a few blocks a couple days later. It would still hesitate, mailnly when I pressed the breaks. My brother in law replaced 3 of 6 spark plugs because that all he could reach. Now when I turn my car on the engine light flashes and when I put my car in any gear it stalls/ shuts off. Does this have anything to do with replacing the ignition coils? I also know I need a tune-up, Any ideas? Thanks!!

Remove ignition module and have it checked at most autoparts stores, if OK, then have fuel pressure checked.

My 2000 Montana just had the fuel pump replaced, we just got it back yesterday and it keeps stalling out. It has about 215000 kms its is a V6. What can the problem be?

my 2001 does the same thimg it turn out to be a egr valve sticking open my would work fine and then stop at lights stall but starts fine again and while taking off it would cut out and backfire

why does my pontiac montana stall right after i start the van?

Check the fuel pressure if it's within specs and also if the injectors pulsing?

Other Category problem
2000 Pontiac Montana 6 cyl Wheel Drive Type unknown Automatic 120000 miles
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when you shut off the car my antifreese pours out and im going through about 1 gallon every week or so.

where exactly is it pouring out.

have you noticed any problems with drive ability?

[quote:703ac1f9a5="blackop555"]where exactly is it pouring out.

have you noticed any problems with drive ability?[/quote:703ac1f9a5]
It's driving just fine but we noticed that when it starts to get low the heater quits working, it pour out close to the front of the motor

is it possible that you can get me a picture of where its coming out off?

it only comes out when the engine is off not on?

[quote:385efa49d8="blackop555"]is it possible that you can get me a picture of where its coming out off?

it only comes out when the engine is off not on?[/quote:385efa49d8]
When i shut it off is when it happens

Could be coming from the engine oil cooler located at the base of the oil filter. These are an aluminum casting and will leak under high coolant temperatures which occur minutes after the engine is shut down. The extra heat that develops after coolant stops circulating will open up a smalll crack in trhe casting or welds. I have seen these leak before. About $ 250 from dealer. :lol:

ed sounds pretty reasonable, that would be just about the only thing that would be causing it to come out of the radiator when the engine is off.