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: 20,685

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: 26,374	Last Post By turboLude View Profile View Forum Posts Private Message View Blog Entries View Articles 08-30-2012
Got ****ed in the ass by my Dad Started by timothylockhart, 06-23-2014 6 Pages • 1 2 3 ... 6	Replies: 103 Views: 17,886	Last Post By blueguy View Profile View Forum Posts Private Message View Blog Entries View Articles 12-30-2015
Hard Start When Warm Started by gingerdude, 12-17-2016 3 Pages • 1 2 3	Replies: 44 Views: 15,322	Last Post By gingerdude View Profile View Forum Posts Private Message View Blog Entries View Articles 07-03-2017
Oil? Power steering fluid? leaking from inner tie rod boot - What cuold be the cause? Started by turboLude, 07-09-2014	Replies: 9 Views: 12,968	Last Post By Scottydoggs View Profile View Forum Posts Private Message View Blog Entries View Articles 07-22-2014
Easy cheap Mods for 3.1L V6 2002 Grand Prix? Started by tomtom123, 11-13-2012	Replies: 6 Views: 12,760	Last Post By Fivefingerdeathpunch View Profile View Forum Posts Private Message View Blog Entries View Articles 04-13-2017
Starter Grinding Started by gingerdude, 01-11-2019	Replies: 4 Views: 12,501	Last Post By Scottydoggs View Profile View Forum Posts Private Message View Blog Entries View Articles 01-21-2019
Is the 3100 engine ****? Started by MattF, 07-19-2016 2 Pages • 1 2	Replies: 23 Views: 12,038	Last Post By Pontiacidaho View Profile View Forum Posts Private Message View Blog Entries View Articles 09-21-2017
Car stalls when warm at low/no speed but NOT in park or neutral...idle seems fine. Started by ss66, 06-13-2008	Replies: 7 Views: 11,596	Last Post By matt5112 View Profile View Forum Posts Private Message View Blog Entries View Articles 07-07-2010
Overheating problem 96 Grand Prix 3.1l Started by Pontiacidaho, 09-21-2017 2 Pages • 1 2	Replies: 30 Views: 11,514	Last Post By WarStryker13 View Profile View Forum Posts Private Message View Blog Entries View Articles 10-08-2017
Low side service port Started by Skatched, 05-28-2009	Replies: 5 Views: 11,279	Last Post By Skatched View Profile View Forum Posts Private Message View Blog Entries View Articles 07-01-2009
Ticking in the engine.... Started by fortune4you, 04-06-2009	Replies: 18 Views: 10,788	Last Post By CLDFRZE View Profile View Forum Posts Private Message View Blog Entries View Articles 03-01-2010
EGR error code and weird hesitation Started by gingerdude, 10-27-2019	Replies: 8 Views: 10,760	Last Post By gingerdude View Profile View Forum Posts Private Message View Blog Entries View Articles 01-01-2020
3.1L - Unusually High Fuel Economy Possible? Started by michaelb721, 09-01-2009 2 Pages • 1 2	Replies: 33 Views: 10,344	Last Post By matt5112 View Profile View Forum Posts Private Message View Blog Entries View Articles 12-17-2010
Replaced Crankshaft position sensor, now won't start Started by 03grandprix, 10-13-2010	Replies: 12 Views: 10,171	Last Post By 03grandprix View Profile View Forum Posts Private Message View Blog Entries View Articles 11-05-2010
99 GP 3100 engine noise Started by 99monte, 06-29-2014	Replies: 13 Views: 9,531	Last Post By jbamonte View Profile View Forum Posts Private Message View Blog Entries View Articles 07-08-2017
u bend delete Started by twich12, 07-11-2011 5 Pages • 1 2 3 ... 5	Replies: 81 Views: 9,434	Last Post By blueguy View Profile View Forum Posts Private Message View Blog Entries View Articles 08-08-2011
Overheating. Help me diagnose why please. Started by timothylockhart, 06-01-2017 2 Pages • 1 2	Replies: 32 Views: 9,182	Last Post By timothylockhart View Profile View Forum Posts Private Message View Blog Entries View Articles 06-04-2017
Crank Pulley Moved? Started by dwallace, 10-27-2010	Replies: 6 Views: 8,757	Last Post By Rider View Profile View Forum Posts Private Message View Blog Entries View Articles 02-20-2011
3400 ohv lower intake manifold gasket questions Started by Bjorn20, 01-11-2012	Replies: 18 Views: 8,708	Last Post By dsmuts View Profile View Forum Posts Private Message View Blog Entries View Articles 01-13-2012
3.1L powa! Started by UR LOSN, 12-14-2007 2 Pages • 1 2	Replies: 20 Views: 8,335	Last Post By mrbreezeet1 View Profile View Forum Posts Private Message View Blog Entries View Articles 01-06-2022