I really need some advice here. I have a 2000 blazer 4dr 4wd. 4.3
My brother is willing to work on my car, he is a FORD man and chevy is not something he likes
does anyone have pics of the fuel relay or fuel pump location?
the car won't start and there is no pressure in the fuel rail

(HELP)
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The fuel pressure relay is located in the underhood fuse box. Just look at the listing which will refer to the diagram which will lead you to the fuel pump relay itself. The fuel pump is located in the fuel tank and requires dropping the tank to take out.

I recommend that you check all of the fuses. The fuel pump relay should be the same as atleast one other relay in the box. I believe it's the same as the horn relay and if you swap them and the horn works, the relay is doing its job. Then, you have to check and make sure that the relay is getting the proper signal from the PCM to turn on. This is accomplished by makeing sure that there is 12V on pins 30 & 85 (I think) and ground on 86... Or is it ground on pin 85 and 12V on pin 86... It really doesn't matter, but both should be present with the key on (but may go away after 10-20 seconds when the PCM shuts off the feed). Just check it both ways. If you don't have 12V to pin 30, then you probably have a faulty fuse.

If all of that checks out, then the next course of action would be to pull the electrical connection off of the fuel pump and test for power and ground at hte pump.

 

Thank You!
My brother wants to know if by any chance they might have made it a little easier and put in an access panel through the floor board?
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Would be nice, but I would have told you if they did...

 

Hey I just wanted to tell you THANKS for your advise....
My brother got my car fixed and its running fine now.....
What a job it was....

Thanks again, Linda



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I am very glad that you and your brother were able to repair your truck!!

 

What turned out to be the problem?