Question about Chevrolet Suburban 1500
Hello, first of all,which motor do you have , and just because you had 60psi at that given moment doesn't mean that your pressure is going to be the same every time, the problem is that if the fuel pressure regulator valve goes bad and makes the engine start hard and then other times starts real easy and I put the fuel pressure gauge on the manifold and it said good pressure but when I took the vacuum hose off of the fuel press reg valve it was full of gas and that means that the gas is going by the diaphragm in the valve and letting gas right into your vacuum port, now if you have a 5.3 it's an easy fix , it is a little round valve about the size of a 50cent piece with a vacuum hose going to it and it is on the driver side on the fuel rail about in the middle , now if you have the 5.7 then it is little more complicated, you have to take the intake manifold of and the fuel press reg valve is underneath,. You might also want to check the ground strap going from the engine block to the body of the car. good luck.
Posted on Jul 28, 2010
Testimonial: "thanks for the input, I will try the ground first. "
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Posted on Jan 02, 2017
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