fuel relay December 21, 2004, 03:47:04 PM Hey anybody know where the fuel relay on a 88 tbird turbo coupe is?I have been told that it is attaced to the trunk support panel, driver side and that it is green I cant find a green anything anywhere in there. Anybody have better description than the one I'm working with? Quote Selected
Re: fuel relay Reply #1 – December 21, 2004, 04:47:20 PM it should be on the passenger side of the car in the trunk.. it should be mounted where the trunk lid rail mounts to on the back side tord the QTR.. and why do you need to know is the fuel pump not working? if yes check to see if your getting a hot to the relay it self first and let me know..Nick Quote Selected
Re: fuel relay Reply #2 – December 21, 2004, 04:54:00 PM Actually the 88 Turbo Coupe does not have a relay like a standard Thunderbird does. The fuel pump "relay" is done through the black box that is controlled by the EEC (it also controls the fans) It is mounted on the passenger side stut tower right next to the intercooler and just behind the air filter box. Quote Selected
Re: fuel relay Reply #3 – December 21, 2004, 06:34:38 PM What Hawk said, but elaborate a little farther.. It is known as a IRCM(intergrated relay controller module), and in addition to the fuel pump and fan relays it also contains relays for the AC and EEC. At well over a $100 you need to be sure its the problem before buying one. Quote Selected
Re: fuel relay Reply #4 – December 21, 2004, 06:37:34 PM Yea, fuel pump isn't pumping. Just trying to trouble shoot the line a little before I buy a fuel pump. Car was running fine. Went to a friends house to study for a test. When I came back out and started the car it ran poorly like it wasn't getting any gas or bad timing or b ad dist cap etc. Well found it wasn't getting any fuel. I found that out when I noticed I couldn't hear the slight hum of the pump when I first turned on the key, just before starting the engine. I popped the fuel line up front (this turbo coupe now has a 5.0 in it, I thought the relay would still be located in the original location, evidently it isn't). and there was no pressure and very little fuel. Anywho... I am trying to find the relay and I am having trouble locating it. Quote Selected
Re: fuel relay Reply #5 – December 21, 2004, 07:24:56 PM it you started the car and it ran like ,, the relay did its job. Quote Selected
Re: fuel relay Reply #6 – December 21, 2004, 08:01:59 PM the nato site has a good write up on trying to fix an IRCM Quote Selected
Re: fuel relay Reply #7 – December 21, 2004, 08:48:59 PM opps sorry guys i did'nt notice that he owns a turbo coupe.. i only payed atention to the fuel pump relay part.. like i've said many times before i'm getting old lol Quote Selected
Re: fuel relay Reply #8 – December 21, 2004, 09:08:38 PM Quotethis turbo coupe now has a 5.0 in it, I thought the relay would still be located in the original locationYou should have mentined this in the first place..... I can 99.999% gaurentee its not going to still have the IRCM.If the engine wiring harness is from a Mustang, it's probably under the front seat. The Tbirds mount them in the trunk(PASSENGER SIDE), but since its a swap job it could be anywhere. Quote Selected
Re: fuel relay Reply #9 – December 22, 2004, 06:10:17 AM QuoteI found that out when I noticed I couldn't hear the slight hum of the pump when I first turned on the key, just before starting the engine. How about when you ground the tan/lightgreen wire at the self-test connector? That should make the pump run continuously whenever the key is "on". Quote Selected
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