Fuel pump fusible link... help????
Thread Starter
Safety Car
Joined: Dec 2004
Posts: 4,088
Likes: 0
From: Poop land
Fuel pump fusible link... help????
There are 10 different fusible links that I'm looking at here. I'm trying to find out which one the fuel pimp is connected to because it didn't prime this morning before start up. Any idea which one it is? They all look very similar...
I gotta get this car running by the afternoon. Thanks.
I gotta get this car running by the afternoon. Thanks.
Melting Slicks
Joined: Jul 2006
Posts: 3,356
Likes: 1
From: Chesapeake Va
Originally Posted by kopbet89c4
There are 10 different fusible links that I'm looking at here. I'm trying to find out which one the fuel pimp is connected to because it didn't prime this morning before start up. Any idea which one it is? They all look very similar...
I gotta get this car running by the afternoon. Thanks.
I gotta get this car running by the afternoon. Thanks.
Location wise it should be by the battery.
Last edited by edcmat-l1; Sep 2, 2006 at 12:43 PM.
Le Mans Master
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Always difficult to pinpoint, but that link also provides memory power to the ECM, Pin C16, and the MAF relays, along with Oil Pressure Switch and then the Fuel Pump Relay. Are they all dead? Anyway, find the connector off of the battery positive cable (which you can use to clear ECM memory) and follow it to that fusible link - I don't remember it being on the junction block.
Le Mans Master
Joined: Aug 2003
Posts: 9,884
Likes: 3
From: Magnolia Mississippi
St. Jude '03-'04-'05-'06-'07
Don't know if this will help, but it says: Fusible link H (distrubition box to relays which includes the Fuel Pump Relay). looks in the diag like it goes from the battery fusible link to H + E & D fusible links...
Burning Brakes
Joined: Nov 2005
Posts: 848
Likes: 1
From: 1992 LT1 6 speed Cayman Islands
Is there power to the FP relay. If there is power at the relay then this is the place to start checking ot find the problem with the FP. Try switching one of the other relays in place ofthe FP relay to see if it works then. If so you need a new relay.
Thread Starter
Safety Car
Joined: Dec 2004
Posts: 4,088
Likes: 0
From: Poop land
Oops, the nut to the positive cable junction is now stripped. Where can I get a new one? The homies at Vatozone and Advanced Discount Auto Parts say, "We ain't got none!"
Isn't this a common American car part????????????????
Isn't this a common American car part????????????????
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Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
Yes, it's a .5 orange fusible link. NAPPA sells them, their part number is 784691, BUT the one they sell is BLACK, I wrapped mine with red tape.
If you're getting an infinity reading on the fusible link..it's blown! The link can be attached to either the positive terminal or the power terminal behind the battery. The part number I posted has the connection for battery. But you can also buy a roll of 16 guage fusible link wire...if you go this route, use NO MORE than 9 inches of the fusible link wire...per Belden.
If your car cranks and starts it is not the link, because both the circuit to the fp relay and oil pressure switch run off the SAME fusible link.
BTW, I really suspect the wires GOING into the relay as be suspect for your problems and the cause of blowing the link...you should have seen mine..insulation shrunk back 1-2 inches, bare wires touching, and others have posted the same thing.
Thought I posted this before.
If you're getting an infinity reading on the fusible link..it's blown! The link can be attached to either the positive terminal or the power terminal behind the battery. The part number I posted has the connection for battery. But you can also buy a roll of 16 guage fusible link wire...if you go this route, use NO MORE than 9 inches of the fusible link wire...per Belden.
If your car cranks and starts it is not the link, because both the circuit to the fp relay and oil pressure switch run off the SAME fusible link.
BTW, I really suspect the wires GOING into the relay as be suspect for your problems and the cause of blowing the link...you should have seen mine..insulation shrunk back 1-2 inches, bare wires touching, and others have posted the same thing.
Thought I posted this before.
Last edited by rick lambert; Sep 2, 2006 at 02:46 PM.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
The problem, if there is one, is where the insulation of the wires shrinks back from the terminals in the plug. With the plug off of the relay, you can easily see if the typical insulation shrinkage problem exists. Since you ask, I'm betting it doesn't.
RACE ON!!!
RACE ON!!!
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Does "Pfff..." mean that the insulation has pulled back from the crimped on terminals in the plug? A good, not so temporary fix, is to tape them up, well, so they can't make contact with one another. What about...?
RACE ON!!!
Originally Posted by kopbet89c4
Its really funny that the wires look good going into the FP relay. How do I take apart the harness to find out if there is any bare wire exposed?
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
Just disconnect the FP relay from the firewall....don't just unplug the relay, IF memory serves me correct, once you pull the FP relay housing from the firewall...you should be able to see if any of the wire insulation has shrunk back exposing the bare wires. Someone else has posted about a MAF problem..and relays, look at his post..he too found what I've been talking about.
BTW, it's not wires going into the harness.....it's the wires going into the FP relay connection...that is where I believe you're gonna find your problem.
The post I referred to is by K87ZZ4
BTW, it's not wires going into the harness.....it's the wires going into the FP relay connection...that is where I believe you're gonna find your problem.
The post I referred to is by K87ZZ4
Last edited by rick lambert; Sep 4, 2006 at 11:35 AM.
