Rust behind and under back seat

03GPScottyd · 12-17-2007, 04:36 PM

What causes the rust behind the back seat on the GP? I took out my back seat on the 03 to see if I could fabricate a child restraint plate that is offered on the 2000 and newer cars for my 00 GP. When I did mine was covered in rust. Is this a known issue and what can I do to stop it.

01whitegtp · 12-27-2007, 07:56 PM

i have never heard of this, can you take a pic? Maybe your rear window is leaking water inside your car

03GPScottyd · 12-28-2007, 12:43 PM

Iron Indian · 12-30-2007, 07:02 PM

Dude, you have a water leak somewhere. My 99 GTP w/ 155k + being a former Michigan car doesn't look anything like that.

Reptile · 12-30-2007, 09:01 PM

It could also be the result of condensation on bare metal.

03GPScottyd · 12-30-2007, 09:11 PM

Mines an 03 with 51,000 from Kentucky. Doesn't snow here much but it rains all the damn time now and the humidity level is always high. Since I moved back from Colorado I miss the snow.

Note: This car's never seen snow.

03GPScottyd · 12-30-2007, 09:14 PM

Think I'll take it out, clean it off, paint it, and see if it comes back.

UR LOSN · 12-31-2007, 04:44 PM

sounds like a good idea! they make a paint that completely inhibits rust.

more than likely from all the moisture in the air.

hercman · 01-04-2008, 01:18 PM

Here use this stuff works great

POR-15 Inc.

archemedes · 01-04-2008, 03:24 PM

that is normal, humidity will do that (have seen many cars do that) a little spray paint and it should stop

12-17-2007, 04:36 PM	#1
03GPScottyd GTP Level Member Join Date: Dec 2007 Location: Louisville, KY Posts: 1,238 Thanks: 1 Thanked 2 Times in 2 Posts iTrader: (1)	Rust behind and under back seat What causes the rust behind the back seat on the GP? I took out my back seat on the 03 to see if I could fabricate a child restraint plate that is offered on the 2000 and newer cars for my 00 GP. When I did mine was covered in rust. Is this a known issue and what can I do to stop it.

12-27-2007, 07:56 PM	#2
01whitegtp SE Level Member Join Date: Dec 2007 Posts: 34 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	i have never heard of this, can you take a pic? Maybe your rear window is leaking water inside your car __________________ 06 GXP - lowered, 20% tint

12-30-2007, 07:02 PM	#4
Iron Indian GTX Level Member Join Date: Dec 2007 Location: Moore, Oklahoma Posts: 978 Thanks: 0 Thanked 2 Times in 2 Posts iTrader: (1)	Dude, you have a water leak somewhere. My 99 GTP w/ 155k + being a former Michigan car doesn't look anything like that. __________________ Shawn W. Larsen '99 Pontiac Grand Prix GTP ___ '00 Pontiac Grand Prix GTP ___ '07 Chevy Trailblazer SS

12-30-2007, 09:01 PM	#5
Reptile Community Vendor Join Date: Dec 2007 Location: Kansas City, MO Posts: 1,660 Thanks: 0 Thanked 19 Times in 18 Posts iTrader: (8)	It could also be the result of condensation on bare metal. __________________ GreenBastardPerformance2000 GTP Coupe (the green bastard) XP, Pacesetters, LS1 TB & MAF,MSD System, P&P LIM, P&P GenV w/ 3.2, 3.0, 2.8, Devil'sOwn Injected 100% Methanol,PowerTuned, TripleEdge Trans w/3.29's 12.92 @ 105mph

12-31-2007, 04:44 PM	#8
UR LOSN Moderator Join Date: Dec 2007 Location: Rockford, IL Posts: 3,319 Thanks: 11 Thanked 14 Times in 14 Posts iTrader: (9)	sounds like a good idea! they make a paint that completely inhibits rust. more than likely from all the moisture in the air. __________________ 2001 GTP street car- GT45 turbo,Stage 4 Intense turbo cam,FMIC,150 wet, double roller timing chain, Diamond forged coated pistons 8:0:1, Diamond piston rings, cryoed L32 connecting rods, Cryoed crank, Clevite77 main bearings, Clevite77 cam bearings, Clevite77 L32 rod bearings, ARP Everything, Intense/meizere true billet Flexplate, Custom UIM, Intense oil pressure kit, Cometic 4 layer head gaskets, OE-R lifters, Cryoed L67 block, ATI turbo dampner, MUCH MORE, 6 more to choose from ASE Certified

12-28-2007, 12:43 PM	#3
03GPScottyd GTP Level Member Join Date: Dec 2007 Location: Louisville, KY Posts: 1,238 Thanks: 1 Thanked 2 Times in 2 Posts iTrader: (1)

12-30-2007, 09:11 PM	#6
03GPScottyd GTP Level Member Join Date: Dec 2007 Location: Louisville, KY Posts: 1,238 Thanks: 1 Thanked 2 Times in 2 Posts iTrader: (1)	Mines an 03 with 51,000 from Kentucky. Doesn't snow here much but it rains all the damn time now and the humidity level is always high. Since I moved back from Colorado I miss the snow. Note: This car's never seen snow.

12-30-2007, 09:14 PM	#7
03GPScottyd GTP Level Member Join Date: Dec 2007 Location: Louisville, KY Posts: 1,238 Thanks: 1 Thanked 2 Times in 2 Posts iTrader: (1)	Think I'll take it out, clean it off, paint it, and see if it comes back.

01-04-2008, 01:18 PM	#9
hercman SE Level Member Join Date: Jan 2008 Location: Marietta, GA Posts: 92 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	Here use this stuff works great POR-15 Inc.

01-04-2008, 03:24 PM	#10
archemedes Approved Vendor Join Date: Jan 2008 Location: Saraland Alabama Posts: 3,462 Thanks: 0 Thanked 3 Times in 3 Posts iTrader: (1)	that is normal, humidity will do that (have seen many cars do that) a little spray paint and it should stop

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