Half power to fuel pump need help!!!!
Thread Starter
Member
iTrader: (3)
Joined: Feb 2004
Posts: 138
Likes: 0
From: Jenison, mi
Car: 1987 Iroc-z camaro
Engine: 5.7 Liter
Half power to fuel pump need help!!!!
Alright I have access to the fuel pump. I checked the wire that sends direct power to the pump and my test light has a faint light too it like the pump doesn't have enough power to it. I was wondering if anyone can give me the exact locations of the relays on the car. I want to check the power going in and out of the relays. If there is anything that anyone knows that will help me out I would give great thanks. I have a 87 TPI 350. Please help soon I am working on it right now!
Member
iTrader: (2)
Joined: Jan 2005
Posts: 396
Likes: 0
From: Columbus, In
Car: 87 Camaro
Engine: 406
Transmission: T56
Axle/Gears: 9" ford 35 spline axles
Originally Posted by sweet_87_iroc
Alright I have access to the fuel pump. I checked the wire that sends direct power to the pump and my test light has a faint light too it like the pump doesn't have enough power to it. I was wondering if anyone can give me the exact locations of the relays on the car. I want to check the power going in and out of the relays. If there is anything that anyone knows that will help me out I would give great thanks. I have a 87 TPI 350. Please help soon I am working on it right now!
Supreme Member
Joined: Mar 2000
Posts: 1,468
Likes: 0
From: Orland Park, IL, USA
Car: 88 IROC-Z
Engine: L98
Transmission: TH350
Axle/Gears: 3.45
I did some checking and it looks like the fuel pump relay is the center one of the three on the drivers side of the firewall. If you are standing infront ofthe car looking at the engine bay, the on to the farthest right will be the MAF relay, th next one to the left if the fuel pump relay and the farthest left on is th MAF burn off relay. I would test or replace the relay (they arent very expensive IIRC) and if that isnt it, its probably a bad ground somewhere or a shorted wire. You are checking the power wire before the pump right?
Here is a pic of the fuel pump wireing diagram.

Hope that helps.
Here is a pic of the fuel pump wireing diagram.
Hope that helps.
Thread
Thread Starter
Forum
Replies
Last Post
92camaroJoe
Tech / General Engine
6
Aug 13, 2015 06:07 AM





