how do you empty the gas tank???

BoostedThrills · 02-05-2009, 08:52 PM

my TTA has been sitting close to 2-1/2 yrs and before I pull the engine out for a rebuild I want to empty the gas tank

how do I build the wires and how do I go about rigging up something under the hood to empty the tank using the in tank fuel pump and a rubber hose at the fuel rail

thanks for any advice

chrisgarrett46 · 02-05-2009, 09:29 PM

Remove the Schrader valve at the end of the fuel rail. Attach a long 4-5 foot hose leading to a gas container. Using your battery run a wire to the black elec. connector behind the alternator. This will activate the fuel pump and drain the tank.

NJBuickRacer · 02-05-2009, 10:32 PM

Just leave the car in S. Philly with a sign that says "free gas, all you can take" over the fuel door. You'll have an empty tank in less than 10 minutes with no effort involved

pacecarta · 02-06-2009, 02:44 PM

you dont need to go to all the way to the battery ,

the back of alternator lug works just as good
,just take a short length of wire with a gator clip terminal on one end and a female spade on the other
clip onto alternator 'bat' lug and plug into the FP connector by the a/c lines

on the regals you can use the feed for the hoodlamp for power ,it plugs right into the FP connector

Grumpy · 02-08-2009, 01:56 PM

TTA doesn't have the pigtail like the Buick for the FP

Just a Six?? · 02-08-2009, 03:59 PM

Quote:

Originally Posted by Grumpy

TTA doesn't have the pigtail like the Buick for the FP

Then see post #3 for the easiest way.

Grumpy · 02-08-2009, 06:29 PM

Quote:

Originally Posted by Just a Six??

Then see post #3 for the easiest way.

nahh.. the way they replace the fuel pump now in TTAs is to blast a hole in the trunk area and take it out threw the top

sooo with that line of thinking just take and ice pick and carefully figure out the lowest point in the tank. Then get a hammer and drive the pick in.. then take it out and put a bigger philips screwdriver in to spread the hole open.. Drain gas and plug the hole with JB weld

BoostedThrills · 07-17-2009, 08:47 AM

ok, finally getting to this project

after looking at pics on how to drain the tank on a GN I went under the hood of the TTA and couldn't find the connector near the alternator

so where is it located on the TTA??

my car does have a hotwire kit on it so do I look for those connections and somehow use those??

thanks for any help

Just a Six?? · 07-17-2009, 09:01 AM

Grumpy said the TTA doesnt have the factory pigtail so run a wire to the pump at the back.

87GTA-turbo · 07-20-2009, 01:40 PM

I had the TTA harness in my hybird f body car and no its doesnt have the two black and green test connections.
I drained my tank buy pulling out the fuel relay and using a piece of wire to jump from the RED POS to the ???? I cant remember what color now.
But it can be done under the hood all in that one relay connector.

Walter Skarb · 07-20-2009, 07:10 PM

When the engine is stopped, the fuel pump can be turned "ON" by applying battery voltage to the test terminal located on terminal 'G' of the ALDL connector. ( bottom left
terminal) hook up fuel drain line as in post #2

02-05-2009, 08:52 PM	#1 (permalink)
BoostedThrills Registered User Join Date: Sep 2000 Location: PA Posts: 387	how do you empty the gas tank??? my TTA has been sitting close to 2-1/2 yrs and before I pull the engine out for a rebuild I want to empty the gas tank how do I build the wires and how do I go about rigging up something under the hood to empty the tank using the in tank fuel pump and a rubber hose at the fuel rail thanks for any advice __________________ 89 TTA #1,104.020J&E pistons,steel main caps,ported heads,214/210 billet roller cam,ARP, PT54,THDP,MAF-T & LT1 maf,ported intake and 70mm TB,CK stage 2 trans with 3,600 9/11 converter 2002 Chevy Avalanche,4X4 5.3 ,StealthOffRoad winch bumper,RamAir Hood 2001 Chevy Silverado 4X4 Quad cab(the wife's ride)

02-05-2009, 09:29 PM	#2 (permalink)
chrisgarrett46 Out, damned knock Join Date: May 2004 Location: Highland Park, ILLinois Posts: 6,008	Remove the Schrader valve at the end of the fuel rail. Attach a long 4-5 foot hose leading to a gas container. Using your battery run a wire to the black elec. connector behind the alternator. This will activate the fuel pump and drain the tank. __________________ Experience is what you get when you don't get what you want. Comp roller cam, Cat stroker, RJC gridle, CPT66BB, PTE Stock Location IC, Champion iron, T&D roller rockers, 60# Mototron injectors w/Turbotweak chip, Monroe-ported throttlebody, RJC Power Plate, Jimmy-built trans w/Precision Vigilante converter, ATR SS dual exhaust, ATR rear sway, BMR upper and lower control arms, Edelbrock Performance shocks, Razor alky, Tinman cold air intake, MT street radials.

02-05-2009, 10:32 PM	#3 (permalink)
NJBuickRacer I thought I was out... Join Date: May 2005 Location: East Brunswick NJ Posts: 1,391	Just leave the car in S. Philly with a sign that says "free gas, all you can take" over the fuel door. You'll have an empty tank in less than 10 minutes with no effort involved __________________ Artie 86 GN Stock Motor 3690lb race weight through the mufflers 11.22@117.9 (with all the applicable safety equipment for ET and speeds attained, including 6pt bar and harnesses)Sold LC2 Powered hybrid project in progress 72 Skylark 350

02-06-2009, 02:44 PM	#4 (permalink)
pacecarta MAGNABUICK.com .. NJ rep Join Date: Oct 2004 Posts: 3,197	you dont need to go to all the way to the battery , the back of alternator lug works just as good ,just take a short length of wire with a gator clip terminal on one end and a female spade on the other clip onto alternator 'bat' lug and plug into the FP connector by the a/c lines on the regals you can use the feed for the hoodlamp for power ,it plugs right into the FP connector __________________ paul ....central NJ... only 5 weeks to go ...gettr' done!! the 86gn stock shortblock 71Q and some other boltons 1.46 10.41 129.85-etown in recovery , temp bone stock engine and turbo 12.50 107 @ 18psi -atco the 87gn te44 pac duttneck 11.31 120.9 @22psi 12.14 109.19 stock turbo at 22psi chips by turbotweak.com the 86 and some other Magna GNs having some fun at Atco Raceway http://videos.streetfire.net/video/e...8c013e4547.htm 2010BPG member... #2045

02-08-2009, 01:56 PM	#5 (permalink)
Grumpy Registered User Join Date: Sep 2000 Location: Andover, Ma Posts: 11,989	TTA doesn't have the pigtail like the Buick for the FP __________________ Dan welcome to the Internet....where accurate information is scarce and in-accurate information is plentiful. 86/87 GN and 89 TTA .. tons of parts !! Stuff has to go !!! email ttastage2@yahoo.com

07-17-2009, 08:47 AM	#8 (permalink)
BoostedThrills Registered User Join Date: Sep 2000 Location: PA Posts: 387	ok, finally getting to this project after looking at pics on how to drain the tank on a GN I went under the hood of the TTA and couldn't find the connector near the alternator so where is it located on the TTA?? my car does have a hotwire kit on it so do I look for those connections and somehow use those?? thanks for any help __________________ 89 TTA #1,104.020J&E pistons,steel main caps,ported heads,214/210 billet roller cam,ARP, PT54,THDP,MAF-T & LT1 maf,ported intake and 70mm TB,CK stage 2 trans with 3,600 9/11 converter 2002 Chevy Avalanche,4X4 5.3 ,StealthOffRoad winch bumper,RamAir Hood 2001 Chevy Silverado 4X4 Quad cab(the wife's ride)

07-17-2009, 09:01 AM	#9 (permalink)
Just a Six?? OK! Who Farted Again?? Join Date: Jun 2003 Location: Toronto Posts: 13,276	Grumpy said the TTA doesnt have the factory pigtail so run a wire to the pump at the back. __________________ 87 LTD. Purchased May 88 Doeskin leather, coach lites, moonroof & carpeted trunk. No Factory Hood Ornament! Special order by the VP of GM Canada! Not another like it! Lots of Go Fast goodies! 11.5 is as Fast as I go! Thats what the track told me! It's a Small World, but I wouldn't want to Paint It!! BPG Member #2040

07-20-2009, 01:40 PM	#10 (permalink)
87GTA-turbo Stupidest man alive. Join Date: Dec 2003 Location: Beaufort, SC Posts: 2,836	I had the TTA harness in my hybird f body car and no its doesnt have the two black and green test connections. I drained my tank buy pulling out the fuel relay and using a piece of wire to jump from the RED POS to the ???? I cant remember what color now. But it can be done under the hood all in that one relay connector. __________________ Steve- “It only gets worse...." 1987 GN, Moonroof, GNX dash, 109 .030 TRW Forged TE-62, G Body DP, 204/214cam, 60-65 Siemens inj, Extender chip, LS1 MAF, port matched intake and heads, Razor's Alky, Hotwired Denso 280 pump, Extreme Trans, Pats 3200 11 in. conv, Metco LCA's Monitored by:PLX WB, EGT, SM & DS 11.8 @ 117 w/ the 4.1 (RIP) 7/08 2001 Jeep Cherokee 4.0 I6 4x4

07-20-2009, 07:10 PM	#11 (permalink)
Walter Skarb 84/87/89 Turbo Join Date: Oct 2007 Posts: 4	When the engine is stopped, the fuel pump can be turned "ON" by applying battery voltage to the test terminal located on terminal 'G' of the ALDL connector. ( bottom left terminal) hook up fuel drain line as in post #2

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Best Method for Removing Gas from Tank	wilkinsde	Buick V6 Turbo Tech	15	07-17-2008 09:33 PM
Running On Empty	Turbonics	The Waiting Room	6	05-26-2007 01:52 PM
Gas Tank Question?	fc227 (fred)	"Before Black"	4	11-10-2005 07:23 AM
OEM style gas tank?	joemama	Buick V6 Turbo Tech	3	07-07-2004 07:12 PM
Filling the gas tank	Shane	Buick V6 Turbo Tech	20	04-02-2004 08:33 AM