The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 10-21-2014, 03:29 AM   #26
LS-K
Registered User
 
Join Date: Dec 2013
Location: Tucson, AZ
Posts: 107
Re: Walbro pump failure

Quote:
Originally Posted by ls1nova71 View Post
Only if your idea of a good time is dropping a tank to replace one when it craps out.....
Haha!!!
LS-K is offline   Reply With Quote
Old 10-21-2014, 08:05 PM   #27
Hart_Rod
*************
 
Hart_Rod's Avatar
 
Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,858
Re: Walbro pump failure

What EFI wiring harness are you using? Where does it receive power from? Interior fuse block or directly from the battery?
Hart_Rod is offline   Reply With Quote
Old 10-22-2014, 12:02 AM   #28
LS-K
Registered User
 
Join Date: Dec 2013
Location: Tucson, AZ
Posts: 107
Re: Walbro pump failure

Quote:
Originally Posted by Hart_Rod View Post
What EFI wiring harness are you using? Where does it receive power from? Interior fuse block or directly from the battery?
I'm using the original harness that came with the engine. I added a current performance relay/fuse block.
LS-K is offline   Reply With Quote
Old 10-22-2014, 11:02 PM   #29
Hart_Rod
*************
 
Hart_Rod's Avatar
 
Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,858
Re: Walbro pump failure

Quote:
Originally Posted by LS-K View Post
I'm using the original harness that came with the engine. I added a current performance relay/fuse block.
I would wire the pump like this:
Attached Images
 
Hart_Rod is offline   Reply With Quote
Old 10-22-2014, 11:51 PM   #30
LS-K
Registered User
 
Join Date: Dec 2013
Location: Tucson, AZ
Posts: 107
Re: Walbro pump failure

Quote:
Originally Posted by Hart_Rod View Post
I would wire the pump like this:
I'll double check my relay/fuse block wiring for my fuel pump before reinstalling the tank this weekend? I'll double check everything you and the rest of the guys here suggested. Very reasonable and logical ideas. Thanks!!!
LS-K is offline   Reply With Quote
Old 11-01-2014, 02:10 PM   #31
LS-K
Registered User
 
Join Date: Dec 2013
Location: Tucson, AZ
Posts: 107
Re: Walbro pump failure

Quote:
Originally Posted by Hart_Rod View Post
I would wire the pump like this:
Take a look Hart_Rod....

This is what I had in my Current Performance fuse/relay block. I'm sure I am the culprit, I remember switching some wires up in here because the pump wasnt "prime'ing" for those two seconds.

LS-K is offline   Reply With Quote
Old 11-01-2014, 11:12 PM   #32
solidaxel
Registered User
 
solidaxel's Avatar
 
Join Date: Dec 2002
Location: Cactus Patch So. Az
Posts: 4,749
Re: Walbro pump failure

I like your camera!
That is a very good clear picture!
__________________
53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD)
53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25
55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73
62 Solidaxle Corvette Roman Red (327
340hp 4spd 3:36) C4 & C5 suspension tube chassis
LS 3 4L70E
65 Corvette Coupe 327 350hp 4spd 4:11
78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42
2000 S-Type 3.0 (wife cruiser)
2003 GMC SCSB 5.3 4L60E 3:42
solidaxel is offline   Reply With Quote
Old 11-01-2014, 11:18 PM   #33
LS-K
Registered User
 
Join Date: Dec 2013
Location: Tucson, AZ
Posts: 107
Re: Walbro pump failure

Quote:
Originally Posted by solidaxel View Post
I like your camera!
That is a very good clear picture!
Haha thanks
LS-K is offline   Reply With Quote
Old 11-01-2014, 11:21 PM   #34
LS-K
Registered User
 
Join Date: Dec 2013
Location: Tucson, AZ
Posts: 107
Re: Walbro pump failure

Tested the pumps amperage and I got a 8.40-8.65 reading....any thoughts?
LS-K is offline   Reply With Quote
Old 11-05-2014, 12:11 AM   #35
LS-K
Registered User
 
Join Date: Dec 2013
Location: Tucson, AZ
Posts: 107
Re: Walbro pump failure

bump for some knowledge regarding my last update
LS-K is offline   Reply With Quote
Old 11-05-2014, 12:30 AM   #36
dayj1
Senior Member
 
Join Date: Jul 2009
Location: Athens, AL
Posts: 499
Re: Walbro pump failure

Quote:
Originally Posted by LS-K View Post
bump for some knowledge regarding my last update
The ~8.5 amps is reasonable for your fuel pump. There's nothing to worry about there. I still think your problem was just a bad connector at the sending unit bulkhead. Just solder the connections as discussed earlier and you should be good to go.
dayj1 is offline   Reply With Quote
Reply

Bookmarks


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

Forum Jump


All times are GMT -4. The time now is 12:20 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com