Question about 2005 Pontiac Montana SV6

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Van won,t start montanasv6 did a diagnostic on it the c305 came up

While waiting for stop light my Montana stall took a couple of to start then started ran rough stall again was hard to start finally started got my driveway then died again.

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  • 141 Answers

Could be fuel pump or fuel relay, sound like you're not getting enough gas.

Posted on Nov 24, 2013

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Posted on Jan 02, 2017

SOURCE: engine intermitantly stalls

if this a fuel injected car just check to fuel pressure first.

Posted on Oct 24, 2008

  • 543 Answers

SOURCE: CAR WONT START,OBD SHOWED EGR AND MAF SENSOR

well the egr could be stuck open acting like a vacum leak,,,and causing the car to stall,,,you need a new egr,,,,check the wires and if any vacum hoses that go to it,to make sure they are good and connected first,if so replace the egr,,,,it could be false dtc for MAF sensor,,,

Posted on Oct 14, 2009

  • 238 Answers

SOURCE: 2001 Pontiac Montana - what is a misfire #5?

Without your actual trouble code, I am assuming that you are have a misfire on cylinder # 5. The computer cannot really tell what is causing the misfire only that cyl 5 is not putting out full power. If it misfires when cold then smooths out as it warms up, I would say it is probably an injector that is sticky, as it warms up it starts working properly.

Posted on Apr 29, 2010

Testimonial: "Thank you for your suggestion. I will have that checked out. I will also ask my mechanic what the actual trouble code says."

  • 109 Answers

SOURCE: My 1999 grand prix stalls and dies at stops.

My Pontiac Grand Prix is also a 99, it has 216,+ thousand miles on it, it runs great, idles good, I need to replace the oxygen sensor tho as it shuts off on me while driving or sometimes coming to a stop. You might try checking the fuel filter and pump as well.

Posted on Jul 07, 2010

  • 14585 Answers

SOURCE: My van is idling rough at a complete stop in

I would suspect a vacuum leak. it is uncommon that a fuel pump would set a code like this..

Posted on Nov 25, 2010

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Robert, It is good you are going to have van scanned for trouble codes, as this could tell you the fault. This is a symptom of a failing/weak fuel pump, but it could be a few things causing starting issue. Have scanned, diagnosed and estimate for repair. Good luck.
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