Question about 2007 Buick Lucerne CXS Sedan

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Temp gauge stop working

Temp gauge won,t work at times and check engine light come on i disconnect neg battery cable and reset it work for a while then the same things happens amonth or so later

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

ewashmidas
  • 362 Answers

SOURCE: Check engine light is on and nothing is wrong

Your vehicle’s computer system has self-testing capability. When the computer senses that there is a problem with one of the components or sensors it stores the correspondent trouble code(s) in its memory and lights up the "Check Engine" or "Service Engine Soon" light to tell you that there is a problem and you need to diagnosed and repaired it. The list of possible codes number in the hundreds. The code itself doesn't tell exactly what component is defective - it only indicates where to look, or what engine parameter is out of normal range. Even if you reset the light, if the underlying problem is not addressed it will come back on. If you want to reset the light don't disconnect the battery cable, find a buddy with a code reader.

Posted on Mar 10, 2009

  • 7353 Answers

SOURCE: My car won't start, I turn the key and absolutely

did you try to start it in neutral? A new battery, fully charged should be 12.7 volts, but the battery gauge on the dash isnt really accurate., make sure the battery connections are clean and tight. If all is ok and it wont start in neutral, try this. hold the key on like you are trying to crank it, now have someone tap on the starter, with a hammer, wrench ect. if it now starts, replace the starter.

Posted on Oct 12, 2009

iadame
  • 676 Answers

SOURCE: ground wire from fire wall into negative battery

First, be sure that there is a ground strap, cable or wire from three spots:
1. from neg. side of battery to block
2. from block to firewall
3. from firewall to battery

The above will give you a good ground. You might also want to add a ground from one of the above to the vehicle frame just to be sure.

Posted on Dec 02, 2009

  • 1 Answer

SOURCE: GM '97 Buick Le Sabre Climate Control flashing display

I did the exact thing with my '98 buick LeSabere. I am certain that the dealer would have to look at the components and relays and fuses. I had problems with Precision tune mechanics telling me there is nothing wrong with the electrical system, even though I still get a Flashing temp gauge and do not get FULL heat even when it's blasted to 90ºf . [Precision Tune got heat on the windshield and floor.] Moreover, the car is possessed with glitches; I am not getting heat on the windshield and the floor is not hot enough to warm the cabin.

Posted on Dec 16, 2009

  • 14036 Answers

SOURCE: wife has 2006 Buick Rainier

THESE ARE POSSIBLE CAUSES TO YOUR PROBLEM. CLASS 2 CIRCUIT IS OPEN SHORTED TO GROUND OR TO B+. THE PCM IGNITION POWER CIRCUITS HAS A HIGH RESISTANCE CONDITION. THE PCM MAIN GROUND CIRCUITS HAS A HIGH RESISTANCE CONDITION. THE SDM MODULE COULD BE SHORTED PULLING THE VOLTAGE LOW. THIS MORE LIKELY DEALERSHIP FIX.

Posted on Feb 07, 2011

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IF YOU DROVE IT VERY FAR AFTER THE TEMP LIGHT CAME ON OR THE TEMP GAUGE WAS IN HOT RANGE YOU PROBALLY CRACKED THE HEAD OR BLOWED THE HEAD GASKET CHECK AND SEE IF THERE IS COOLANT IN THE RADIATOR GOOD LUCK

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You can try a reset by removing the key from your ignition and disconnecting the Neg.battery cable for 1-2 min and then reconnecting the battery cable then turn igntion on but don't start the vehicle. If this doesn't work you will need to take it to your local dealership and have them resweep the gauges with there Tech2.

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This will work on yours. It is called a pcm reset. The only thing it does is reset the codes. The check engine light may pop back up. But for now this will turn it off untill you fix the problem.

To reset the PCM, all you have to do is disconect the neg battery cable. Then turn the key to the START position for about 20 seconds. Then reconnect you battery and your all set. If this doesn't work then disconnect negative cable and do a on and off cycle with your key.

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Mine has done this a few times after having disconnected the battery for service. Disconnecting and reconnecting the battery a second time brought them back. A mechanic friend told me it hase something to do with the ECM relearning after having been disconnected. Hope this helps.

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