Question about 2002 Pontiac Montana

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O2 sensor is out on my 2002 pontiac montana

My muffler has blown out 2 times

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  • 35 Answers

Have your catalick converter cut out and jus strait pipe then put a muffler close to the end of the pipe and then it shouldn't give you anymore problems

Posted on Apr 19, 2013

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6ya6ya
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Posted on Jan 02, 2017

  • 31 Answers

SOURCE: 2000 pontiac montana o2 sensor bank one location

if there is only two it probly the one up buy the motor call the dealer they have the manual

Posted on Jul 10, 2009

  • 112 Answers

SOURCE: 2002 Pontac Grand Prix GTP P0171 code engine stumbling at times

Bank 1 is the frt side exhaust manifold (did they say bank 1 sensor 1?),you can start by replacing that sensor,i would check the intake for leaks ,the gm 6cly. are known for bad intake gaskets,you will see oil coming out form the frt or rear of the intake,also check your atifreeze overflow bottle for bronwish sludge,which means that the oil is mixing with the antifreeze.A leaking intake could cause that lean condition.

Posted on Mar 29, 2009

  • 2920 Answers

SOURCE: 2002 Pontiac Montana Thermostat replacement

check the coolant level fiirst...if that is low it wont give you any heat.....to change the thermostat you have to follow the top radiator hose to the engine.at the send of it you will see a clamp take it loose...then you will see the thermostat housing its held in place by 2 bolts . once you remove them you have the thermostat....make sure you clean all the old gasket material off both the housing and mount.also make sure you get a new gasket.

Posted on Jan 29, 2009

  • 105 Answers

SOURCE: 2002 Pontiac Montana, No Heat, I put the temp control on

the cabel from the heat dial to the heater box behind the dash could be snaped or jamed thus not opperating the lever which operates the flap which open and closes the heat box next to the matrix. or if your coolant is brown in colour it could be your matrix is clogged with sedament and needs flushing out. or it could be your water pump not pumping coolant round your engine or it could be a knackerd thermostat i hope these will help you id start with the easyest first thermostat

Posted on Dec 17, 2009

omaromid
  • 332 Answers

SOURCE: How to clean O2 sensor on a 2007 Pontiac G6?

O2 sensor are located before and after Catalytic Converter ( exhaust system of your car). If you car's engine is 4 cyl you have 2 O2 sensors and if you car's engine is 6 cyl then you have 4 O2 sensors ( for each bank, 2 for left bank and 2 for right bank). Hope it helps and comment if you need more advice. Please don't forget to rate the answer it helps with my ratings, thanks!

Posted on Apr 28, 2010

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1 Answer

Location of o2 sensor


the o2 sensor is on you exhaust pipe between or on the catlic converter

Apr 12, 2014 | 2002 Pontiac Montana

1 Answer

2002 PONTIAC MONTANA P0420 CODE


This code sets because the onboard computer senses that the exhaust quality before vs. after the catalytic converter do not meet design specs. It determines this via the upstream and downstream O2 sensors in the exhaust.
Possible causes are:
Poor engine performance.
Damaged/defective converter
Damaged/defective O2 Sensor(s)
Exhaust leaks

Nov 02, 2013 | 2000 Honda Civic

1 Answer

2002 pontiac montana air bag lights on


2 simple fixes for airbag light are a poor connection under either front seat, or a blown fuse.

Oct 30, 2013 | 2002 Pontiac Montana

1 Answer

2000 Pontiac Montana. Error code PO135 O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1


Replace O2 sensor one in cylinder bank one.
The sensor is the one before the ca converter in the cylinder bank that contains cylinder #1 See diagram below. Please rate my help.
10_8_2012_5_55_36_pm.gif

Oct 08, 2012 | 2000 Pontiac Montana

1 Answer

Need to replace O2 sensor


There are 3 sensors, one for each bank of cylinders and one after the convertor. All are 7/8 inch [ 22 milimeter ] hex. Some are very hard to remove without special tools, also make sure you know which one is faulty as they are quite expensive.

Jan 09, 2011 | 2002 Pontiac Montana

1 Answer

Montana o2 sensor code P0128


no it isn't !
low coolant
defective thermostat
defective cooling fan ( staying on too long)
faulty ECT sensor and/or IAT sensor

Jul 05, 2010 | 2002 Pontiac Montana

1 Answer

Fluctuation engine temperature interior heat stops when engine temp goes up. engine makes clatter noise at times


Getting P0135 and P0301 also in this Montana. I'm guessing its the upstream O2. (bank 1, sensor 1)

Changed the thermostat, and the oil and antifreeze is clean and clear.

Any tips or tricks on how to tilt engine to change O2?

Dec 28, 2009 | 2001 Pontiac Montana

2 Answers

Service Engine soon light on - diagnostic code says o2 sensor. What is an O2 sensor and is it hard to replace


You'll need to give us the specific code, in the format P0xxx. Just saying "O2 sensor" doesn't mean anything. It could be the heater circuit, fuse, o2 sensor itself, etc. Changing an O2 sensor isn't too hard but you may not need to replace it/them.

Please report back with the code or look it up at http://www.check-engine-light.com

Nov 13, 2009 | 2002 Pontiac Montana

1 Answer

Service engine soon light on


you need to put it on a computer to find what the code is such as on o2 sensor or a number of other things. once you know the codes you can fix the problem

Dec 20, 2008 | 2002 Pontiac Montana

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