Pontiac GTA Enhancement information and discussions with Technical DIY and performance tuning information for the hardcore Pontiac GTA Owners and Enthusiasts.
Forum | Register Now | Members | Search | How Do I... | Calendar

Go Back   The GTA Source Page Message Forums > GTA SPECIFIC > GTA TECH

GTA TECH Want to discuss technical topics about your GTA.... engine tuning, mechanical upgrades, problem areas, etc.? Then post it HERE!

Reply
 
Thread Tools Display Modes
Old 08-20-2009   #1
cdngtaguy
Registered User
 
cdngtaguy's Avatar
 
Join Date: Feb 2009
Location: Kitchener Ontario
Posts: 29


Fuel pump wiring

hey guys, and gals(if there are any) i'll be replacing my fuel pump on the weekend, and just wondered what you folks have done when splicing the wires for the new pump into the existing wires, is there some sort of heat shrink that is resistant to Gasoline that i can use to cover the splice? or is it ok to leave the splice exposed?

someone on 3rdgen told me that they are exposed from the factory but i'm a little iffy on that

thx
cdngtaguy is offline   Reply With Quote
Old 08-20-2009   #2
90 L98 TransAm
Registered User
 
Join Date: Mar 2006
Posts: 462


Re: Fuel pump wiring

The installation instructions for my Walbro auxilliary fuel pump says to use butt splices if required by a particular application (i.e. not plug and play).

I've started using these 3M butt connectors for some automotive wiring:

http://cgi.ebay.com/200-3M-Heat-Shri...804164003r4427
90 L98 TransAm is offline   Reply With Quote
Old 08-20-2009   #3
cdngtaguy
Registered User
 
cdngtaguy's Avatar
 
Join Date: Feb 2009
Location: Kitchener Ontario
Posts: 29


Re: Fuel pump wiring

have you used them in your gas tank, and if so how long have they been in there, and have you had any trouble since? i was told by the parts guys in my area that they butt connectors are not "gas proof"
cdngtaguy is offline   Reply With Quote
Old 08-20-2009   #4
90 L98 TransAm
Registered User
 
Join Date: Mar 2006
Posts: 462


Re: Fuel pump wiring

No. One of my Walbro's went in my WRX's fuel tank and it was a plug and play deal with no splicing required.

The other one (an auxilliary for my supercharger) is mounted on the fender in my TA's engine compartment.

You might want to check out the Walbro website or shoot them an e-mail to see what they recommend.

Sorry I can't answer your specific question but hopefully another member has been there/done that.

(As a general disclaimer we all know not to use a heat, spark, or flame source around gasoline or fumes and to have a fire extinguisher within easy reach when working on a fuel system).
90 L98 TransAm is offline   Reply With Quote
Old 08-20-2009   #5
YumikoGTA
Original and Current GTA owner
 
YumikoGTA's Avatar
 
Join Date: Apr 2009
Location: California
Posts: 1,748


Re: Fuel pump wiring

It was so long ago that we did my GTAs fuel pump replacement for the first time that I do not recall if the wires were exposed or not. But the mechanics told us when we were replacing it that it is fine to let the wires be exposed. I thought that was strange because I thought they would have to be insulated or something, but it does not effect it at all if they are exposed.

We have changed the fuel pump in my GTA about six or seven times since it was new. If you have never changed one in these cars before, it will be a lot of work for you. But since we have done it so many times, we can actually take out the gas tank and replace the fuel pump and get it back in, in about three hours. "Lessons learned knowledge base" is a very powerful tool! And you need such a powerful tool when you work on these GTAs. There is not too many things easy when working on these cars, and the fuel pump replacement is not easy at all.

Yumiko

Quote:
Originally Posted by cdngtaguy View Post
hey guys, and gals(if there are any) i'll be replacing my fuel pump on the weekend, and just wondered what you folks have done when splicing the wires for the new pump into the existing wires, is there some sort of heat shrink that is resistant to Gasoline that i can use to cover the splice? or is it ok to leave the splice exposed?

someone on 3rdgen told me that they are exposed from the factory but i'm a little iffy on that

thx
__________________
Love like you have never been hurt before.
YumikoGTA is offline   Reply With Quote
Old 08-23-2009   #6
cdngtaguy
Registered User
 
cdngtaguy's Avatar
 
Join Date: Feb 2009
Location: Kitchener Ontario
Posts: 29


Re: Fuel pump wiring

well thx every one for your input, i changed my pump out yesterday and didn't even have to worry the garage that changed my pump last time used a Delco pump but some cheap tampon looking strainer so i think thats what killed it, but i have all new Delco stuff in the tank now including the proper strainer and the wiring was just plug and play thanks to the old pump being a Delco too
cdngtaguy is offline   Reply With Quote
Old 08-23-2009   #7
YumikoGTA
Original and Current GTA owner
 
YumikoGTA's Avatar
 
Join Date: Apr 2009
Location: California
Posts: 1,748


Re: Fuel pump wiring

The AC Delco fuel pumps come with that rubber "o" ring for the top of the gas tank. We have not ever had good luck with that "o" ring. So we use the separate AC Delco one. The separate one is better because it has extra tabs on it to keep it in place while you are tightening that ring. And it also has a metal inside so the "o" ring does not change shape as it is pressed into place while tightening that ring.

We used the "o" ring that came with the fuel pump and we did not know that there was a problem until we went to fill up the tank with fuel. The fuel started to run out of the top of the tank as it was filled up. We took out the tank again and this time removing the fuel pump assembly, we could see that half of the "o" ring had come out of place and was hanging in the fuel tank. To prevent this from happening, we got the "o" ring from AC Delco that has those extra tabs to keep it in place and the metal frame inside to keep it from changing shape and going out of place as the ring is tightened in place.

Using the AC Delco "o" ring that did not come with the fuel pump, we put it back together very easily and it worked and did not leak anymore. I purchased a few extra ones for the future if we ever need to replace a fuel pump again. Never know when this part will no longer be available from GM. I got a few extra metal rings too.

GM Part # 22515965 for the "o" ring
GM Part # 25124032 for the metal ring clip

Yumiko
__________________
Love like you have never been hurt before.
YumikoGTA is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel pump keeps Breaking againg and againg 1988notchback GTA TECH 20 08-03-2008 09:03 PM
External fuel pump Fred91GTA GTA TECH 4 07-02-2006 10:48 PM
need fuel pump relay wires ghettocruiser GTA PARTS WANTED 3 10-01-2002 03:58 PM
FUEL PUMP NOISE PLEASE HELP REMOVED USER GTA TECH 3 04-04-2001 02:49 AM
pressure on fuel pump outlet for 87 gta 350tpi REMOVED USER GTA TECH 2 05-17-2000 05:21 PM


All times are GMT -5. The time now is 01:04 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.