Forum: 3.1L V6 (LHO/LG8)

Available starting in model year 1989. Also made a Turbo version

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Iceman6669 (The Boss)

12-20-2017

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Sticky: For You 3100/3400 Guys!

Started by blueguy, 10-26-2011

Replies: 2
Views: 20,836

Last Post By

ctracer

10-26-2011

UPDATE > High Idle - problem solved - IAC Valve ( Intake Air Control Valve ) Started by turboLude, 08-25-2012 2 Pages • 1 2	Replies: 26 Views: 26,442	Last Post By turboLude View Profile View Forum Posts Private Message View Blog Entries View Articles 08-30-2012
2003 GP 3100 engine Started by rmr989, 11-11-2009 2 Pages • 1 2	Replies: 25 Views: 7,260	Last Post By blueguy View Profile View Forum Posts Private Message View Blog Entries View Articles 12-26-2009
Troubleshooting Misfire and Bank 1 Sensor Errors Started by whathasnt, 04-18-2012 2 Pages • 1 2	Replies: 25 Views: 6,625	Last Post By whathasnt View Profile View Forum Posts Private Message View Blog Entries View Articles 06-07-2012
Need help reassembling 1999 grand prix Started by joking, 08-06-2012 2 Pages • 1 2	Replies: 25 Views: 5,330	Last Post By joking View Profile View Forum Posts Private Message View Blog Entries View Articles 08-06-2012
Where does this go? Started by AndrewZ28, 09-23-2014 2 Pages • 1 2	Replies: 25 Views: 3,092	Last Post By AndrewZ28 View Profile View Forum Posts Private Message View Blog Entries View Articles 11-23-2014
Intake system, plenum, throttle body Started by Badgers4life, 04-08-2013 2 Pages • 1 2	Replies: 24 Views: 2,928	Last Post By Badgers4life View Profile View Forum Posts Private Message View Blog Entries View Articles 04-16-2013
3.1 and no spark Started by TAYLORPCC, 02-28-2010 2 Pages • 1 2	Replies: 24 Views: 4,783	Last Post By ToXiC View Profile View Forum Posts Private Message View Blog Entries View Articles 11-25-2010
Airflow or radiator problem? Started by medicmandan, 06-24-2015 2 Pages • 1 2	Replies: 24 Views: 5,526	Last Post By J57ltr View Profile View Forum Posts Private Message View Blog Entries View Articles 07-04-2015
How solid is the 3.1L Started by Lvgrandprix2003, 04-22-2010 2 Pages • 1 2	Replies: 23 Views: 4,752	Last Post By Condor120 View Profile View Forum Posts Private Message View Blog Entries View Articles 05-11-2010
Is the 3100 engine ****? Started by MattF, 07-19-2016 2 Pages • 1 2	Replies: 23 Views: 12,209	Last Post By Pontiacidaho View Profile View Forum Posts Private Message View Blog Entries View Articles 09-21-2017
JUst bought my grand prix Started by EMerola, 10-20-2008 2 Pages • 1 2	Replies: 22 Views: 3,961	Last Post By rynoman03 View Profile View Forum Posts Private Message View Blog Entries Visit Homepage View Articles 02-12-2009
best sounding exhaust? Started by iroc2, 08-09-2010 2 Pages • 1 2	Replies: 22 Views: 5,810	Last Post By playtimeover View Profile View Forum Posts Private Message View Blog Entries View Articles 11-05-2010
camshaft is broken... Started by Viper, 08-25-2010 2 Pages • 1 2	Replies: 22 Views: 6,294	Last Post By 91gpse View Profile View Forum Posts Private Message View Blog Entries View Articles 10-04-2010
91 Grand prix with problems... Started by neorules, 04-10-2011 2 Pages • 1 2	Replies: 22 Views: 4,588	Last Post By neorules View Profile View Forum Posts Private Message View Blog Entries View Articles 05-23-2011
Overheating all suddenly. Started by DasGTP, 10-27-2014 2 Pages • 1 2	Replies: 22 Views: 3,144	Last Post By DasGTP View Profile View Forum Posts Private Message View Blog Entries View Articles 10-28-2014
Help Major problem Started by Krazicustom, 06-14-2008 2 Pages • 1 2	Replies: 21 Views: 4,499	Last Post By blueguy View Profile View Forum Posts Private Message View Blog Entries View Articles 05-08-2009
Bad fuel economy Started by Blackbird87, 12-24-2010 2 Pages • 1 2	Replies: 21 Views: 4,243	Last Post By Terry102 View Profile View Forum Posts Private Message View Blog Entries View Articles 02-26-2011
parts that equal horsepower Started by ryan13254, 05-10-2011 2 Pages • 1 2	Replies: 21 Views: 4,345	Last Post By jbamonte View Profile View Forum Posts Private Message View Blog Entries View Articles 06-27-2011
3.1L powa! Started by UR LOSN, 12-14-2007 2 Pages • 1 2	Replies: 20 Views: 8,517	Last Post By mrbreezeet1 View Profile View Forum Posts Private Message View Blog Entries View Articles 01-06-2022
Engine takes too long to idle Started by Viper, 01-22-2009 2 Pages • 1 2	Replies: 20 Views: 3,809	Last Post By 94gpseFangsRide View Profile View Forum Posts Private Message View Blog Entries View Articles 06-18-2009