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Hello everyone, please forgive me for the question but i honestly can't seem to find the answer to it. I want to change my fuel pump relay in my 2003 745Li. If I'm not mistaking, the fuel pump relay is located in the trunk next to the battery. I did notice the green cube looking thing (fuel pump relay) in the trunk but there were two of them. Do i need to purchase two fuel pump relays? Any insight would be greatly appreciated. ??
since you did not mention the engine type it makes it hard for me to tell you so i will have to post both for 4cyl and v6.so hear is what you can do to check the main relay w/o removing it, remove the panel from around the steering column, there you will find a plug in remove the relay from the plug in and verify that there is power going to the relay with the switch on with the black/yellow wire, and green/white.
if you know you have a bad fuel pump relay now you know where it is
There is no fuse specifically dedicated to the fuel pump on this year and model of Suburban. This Suburban is equipped with dual tanks and as such has two relay switches, primary and secondary, both of which are located at the main fuse box in the engine bay, that power up the respective fuel pumps.
The closest fuse (15A) controlling either of these relays also powers up the main control module (located beside and below the main fuse box). So, if one needs to disconnect the fuel pumps from functioning, then the only effective method is to disconnect the fuel pump relays.
You are looking for the constant control relay module- ( CCRM ) see below. The pump will be located inside the fuel tank.Most of the time , its the pump and not the relay but, it wouldn't hurt to check the relay out. Teh relay is housed in the CCRM. Its located behind the engine coolant reservoir.
THIS is for Appliances not CARS
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