Question about 2006 Pontiac Grand Prix

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2006 pontiac Grand Prix stalls in wet weather

I have a 2006 pontiac grand prix v-6 superchared. It runs great other than in wet rainy weather. It spits, sputters, and stalls in wet weather at low idle/speeds and for a day or two after the wet weather??? then it runs great again. What is going on??? How can i fix it

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  • Pontiac Master
  • 757 Answers

A cause for that would be an oxygen sensor getting wet, the one on the inlet side of the catalytic converter.

Posted on Jun 20, 2009

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

davidg65
  • 26 Answers

SOURCE: 2002 Pontiac Grand Prix Thermostat

as you face the engine the thermostat bell is on the right (drivers side) Follow the radiatoe hose. Remove the two bolts and raise the bell still attatched to the hose. the thermostat is there with the rubber seal. You can gently pry the thermostat out with a screwdriver or something similar. Put in new thermostat be sure it is the same as the old one, and then replace or change the seal (be sure it is the smae size and thickness as the old one as I got the wrong size from Napa) Then replace the bell, and tighten, but not over tighten. I hope this helps!

Posted on Jan 31, 2009

  • 451 Answers

SOURCE: 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.

Posted on Aug 13, 2009

  • 15 Answers

SOURCE: 1995 PONTIAC GRAND PRIX RUNS, SPUTTERS THEN STALLS WHILE IDLE AND

Same problem. 1995 Pontiac Grand Prix V6 3.1L no start problem Question The problem, my car runs great first start of the day but does have a miss fire, and I can drive for hours without a problem, but when I turn it off and try to start again 30 -60 minutes later it chuggles and dies and won't start for a least 3-5 hours later, then runs fine again. It trys to turn over and the battery does not drag, no signs of a bad alternator. Everything has power, all fuses are ok I checked them today. Second trip to repair shop resulted in no 3 fuel injector replaced with good results. Fuel pressure checked out ok, No smoking white or black, fuel filter replace and car had a tune up recently also the mass air flow was replaced supposedly, I am starting to wonder if these parts were actually new used or not put in at all but I am charged anyway this is fourth time to the repair shop however now the third time but this is at no charge by a church member's friend so I am inclined to take his advice and think it is the engine module. Three different auto repair garages tell me the following: either the cam shaft sensor, crank shaft sensor, or ignition module, causing no start or start and chuggle and die problem and bad & loose hoses sucking in air. (From my experience engines don't take in air they leak it out through vacuum leaks.) Apparently the last fix resulted in hand made manifold gaskets I did not know about and may also be causing contamination on my low coolant sensor cause it stays on, however back to the no start problem; my engine is getting to much air I am told, I am incline to think there is a vacuum hose leak somewhere instead. Was also told intake manifold gaskets may have a air leak, bad and loose hoses and possibly the sensor's I mentioned. So before I shove out money I don't have, I am doing some homework and found your site. What do you think is going on. Someone else said I do not have a crank shaft sensor. So I don't know whom to believe.

Posted on Aug 21, 2009

  • 52 Answers

SOURCE: 1998 pontiac grand prix starter

disconnect the negative battery terminal first then disconnect the positive treminal so there are no accidents, raise the car safely go underneath & remove the starter cover should be 3 10mm bolts holding the cover on then remove the 2 through starter bolts 15mm then disconnect the + battery cvable from starter then disconnect the solenoid wire should be a 7 mm bolt. good luck

Posted on Sep 11, 2009

motor1258
  • 6674 Answers

SOURCE: spark plug gap for 2005 pontiac grand prix gt 3.8

.060 thousandths of an inch.

Posted on Nov 19, 2009

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I have a 2006 pontiac grand prix 3.8l my heat only blow cold aair I checked the thermostat and the heart inlet hose is hot but the outlet hose is luke war what could this be maybe clogged heater core.


Ok fellow 2006 Grand Prix owners!! By trial and error, I went through the process of elimination because my car would over heat and had no heat inside. After changing the thermostat, I had to replace the water pump. However, after you do this, you need to open the inlet hose bleeder and let the air out a few times. This solved my issue of overheating and I now have great heat!!!

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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.

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My 1993 pontiac grand prix with the 3.1 engine stalls when it idles at a stop light but it starts right back up. it has plenty of power. we changed the o2 sensor did the vaccum leaks and ths spark plugs....


The next thing to try in regards to the stalling would be to change out the Throttle Position Sensor this sensor is the usual cause of this symptom.

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