Selling a Suburban for my mother-in-law. My wife's grandmother is in poor health and has a hard time getting in and out of the Suburban. There aren't too many options it doesn't have. I helped them buy it 3 1/2 years ago out here in Tucson from O'Reilly Chevrolet. I believe it was bought new...
I would do it yourself or have someone local rebuild it when/if it's needed. I don't like dealing with people online or over the phone on issues such as engines and transmissions. That way if you ever have a problem you can take it back to them.
If it was me, before I threw any more parts at it, I'd pull the upper intake off and take a look at that distributor gear. I'd bet my bottom dollar that gear is worn. I know that the hard start WILL get worse as the engine heats up with a worn gear. You've replaced almost everything fuel...
Have you pulled the plugs since changing them? What do they look like? Fuel pressure with the key off should be higher than 60 psi. Try clamping the return line and doing the same thing, pressure should be above 75 psi. Getting any codes?
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