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Pontiac montana: stalls..fuel pump..fuel filter..coil packs…

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I have a2002 pontiac montana...
I have a2002 pontiac montana that will run about 30 minutes and then stalls and will restart after sitting about an hour. I have changed the fuel pump,fuel regulator,fuel filter,camshaft sensor,coil packs, had the ignition control module tested twice and changed the map sensor. HELP PLEASE!!!!!
Submitted: 8 years ago.Category: Pontiac
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Answered in 3 minutes by:
6/24/2010
Pontiac Mechanic: car tech, ASE Certified Technician replied 8 years ago
car tech
car tech, ASE Certified Technician
Category: Pontiac
Satisfied Customers: 3,332
Experience: 25 years master tech and shop owner
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i would suspect a bad crank sensor with all you have all ready done but just so you know that we have seen many ignition modules that where tested be bad its not a concrete accurate test
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Customer reply replied 8 years ago

I already changed that.

Pontiac Mechanic: car tech, ASE Certified Technician replied 8 years ago
in your first post it said cam sensor not crank sensor did you change both
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Customer reply replied 8 years ago
ok I changed the crank shaft sensor and it still stalls
Pontiac Mechanic: car tech, ASE Certified Technician replied 8 years ago
well when it stalls do you have spark and fuel pressure at that time
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Customer reply replied 8 years ago
ok I tested the fuel pressure and it stays at a steady 48 when it stalled it went to 54 I will test the spark when it cools down.
Pontiac Mechanic: car tech, ASE Certified Technician replied 8 years ago
if it starts when it cools this wont tell you if your loosing spark
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Customer reply replied 8 years ago
ok i have spark until it died and chaned the mass air flow sensor any other ideas???
Pontiac Mechanic: car tech, ASE Certified Technician replied 8 years ago
ok you have spark until it died but did you have spark while trying to start it when it wont start
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