Question about 2002 Pontiac Grand Prix

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O2 sensor 2002 pontiac gran prix

Where is the o2 sensor and how do i change it

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  • chuker1959 Aug 03, 2008

    We can't locate this on our car either.

  • Anonymous Mar 14, 2014

    The car turn over but don't start after replacing the timing chain on a 2002 Pontiac Gran Am . I need to know the setting position to reset the timing chain

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It is in the exhaust pipe on the engine side of the catalytic converter, it is round, you may need a special socket to get it out.

Posted on Sep 02, 2008

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My 2002 grand prix was running rough. I plugged my code reader in and the mass air flow sensor came up. I changed that.Then the o2 sensor came up and I changed that. misfire on multiple cylinders came


Check for a restriction of some kind, fuel--air--exhaust. Use a gage and check fuel pressure. What was the actual 02 sensor code? Can you tell if the system is running rich or lean? In park, will the engine rev normally?

You don't think the tranny has an issue?

Dec 15, 2014 | 2002 Pontiac Grand Prix

1 Answer

How do i replace throttle position sensor on 2002 gran prix


Remove two screw holding it on

All parts have to be tested for failure

Otherwise your throwing new parts at
good ones

Sep 30, 2014 | 2002 Pontiac Grand Prix

1 Answer

My Pontiac Gran Prix is stuck in third gear, why?


check tranny fluid. if thats good then it sounds like your bands are sticking. go to autozone and buy a bottle of "lucas tranmission additive". this is the best on the market. do not buy the cheap stuff. this "lucas transmission additive" will be rather thick so it will take about 10 minutes to drain into your transmission filler port. drive around for aboud 10-15 minutes and you should be fixed......tell me if this fixes your problem.

Jan 06, 2010 | 2002 Pontiac Grand Prix

1 Answer

How do I change the fuel filter for a 2002 pontiac Gran Prix


Release the fuel pressure by loosening the gas cap, raise and support the car on jack stands,squeeze the plastic tabs on the male end of the connector,and pull the connector apart.Some models have 2 tabs,and others have 1 and the fuel line screwed into the other side.Remove filter mounting bolt,unhook tab from frame and remove filter. when you put in the new filter, make sure the arrow is pointing toward front of engine.On the line with plastic tabs, just push on till you hear a click, then pull on it to make sure it's latched.Don't forget to tighten gas cap.

Jan 23, 2009 | 2000 Pontiac Grand Prix

2 Answers

How do replace heater core in 2002 Pontiac Gran Prix


i do believe you have to take the passengers side dash apart behind the glove compartment. go to autozone and get a manual or go to the library and check the chiltons manual. this is not an easy job. how bad is the leak? if its not bad these heater cores are made of all aluminum. i would buy a bottle of that radiator additive and see if that takes care of the problem first. it only cost about 5 bucks a bottle and it may permanantly fix your problem.

Dec 06, 2008 | 2002 Pontiac Grand Prix

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