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Hello I have a 2001 f250 with a 7.3, truck starts and runs. Idles a little rough but not super noticeable to a beginner like me. It has a lack of power. I know it’s hard to read so here’s what I got. 1. 405 3. 405 5. 400 7.425 2. 400 4. 320 6. 370 8. 340
i didn’t squirt any oil into the cylinders before doing it. And I’m testing through the glow plug hole. What does squirting oil into it do?
wet cylinders give you a more accurate and consistent compression reading, mimicking the conditions of actual running at full rpm. Give that a shot, doesn't require much. Squirt some in, turn it over without the compression tester in place so that the oil slings around without igniting, then run the test
wet cylinders give you a more accurate and consistent compression reading, mimicking the conditions of actual running at full rpm. Give that a shot, doesn't require much. Squirt some in, turn it over without the compression tester in place so that the oil slings around without igniting, then run the test
Okay thanks! I’ll give it a try this weekend. I’ve been trying to troubleshoot this thing for a while now and can’t figure out what’s wrong, I feel like compression isn’t my problem though. I’m just getting this step out of the way since I haven’t done it yet. Do you know much about these 7.3’s?
Okay thanks! I’ll give it a try this weekend. I’ve been trying to troubleshoot this thing for a while now and can’t figure out what’s wrong, I feel like compression isn’t my problem though. I’m just getting this step out of the way since I haven’t done it yet. Do you know much about these 7.3’s?
yea, you should get a scanner if you don't have one already. Search "7.3 scanner" to pick one that is right for you, then come back for testing suggestions....although the basic is high pressure oil at crank and idle. misewell figure out your compression though, since you have the glow plugs out.
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