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I have a 2000 250 7.3 w/ about 255k on it. I have been having some trouble starting in the morning if i don't plug it in the night before, but it isn't really that cold (maybe 40 overnight). GPR is good, and I found on here how to test the GPs at the valve cover. Just had some questions on the readings. I got
Drivers side
firewall
4.3
2.6
2.7
2.5
Pass. side
firewall
2.4
.38
.35
2.3
The other posts I've read, show that all 8 are not in the right range. Did I mess up my test? Or is this entirely possible? I also have a knock on the driver side, but only when cold and its intermittent, not constant, so I kinda wanna peak under the cover, but I just wanted to get some thoughts on the GPs, my readings, and any advice for further diagnostics. Thanks
I dont off hand remember the good/ bad readings but changing them out is pretty easy and straight forward just need a deep socket and some fuel line tubing.
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