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86' 6.9 Wont Start
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<blockquote data-quote="cfpinz" data-source="post: 498935" data-attributes="member: 2383"><p>That's about my favorite year, neat old body with a solid front axle. </p><p></p><p>Lift pumps are famous for going out, leave it setting overnight after running with the front end facing extremely downhill. If it's a lift pump it will start better than if left uphill. There's a schrader valve on the side of the filter that helps to bleed air out, see if there's fuel pressure there while someone cranks it. There is a plastic return bucket on top of each injector below the lines, each has 2 o-rings in it that go bad quite often. The line from the filter to the back of the inj pump also has an o-ring on each end that will let air in. A lot of these are going bad now with the new ultralow sulfur fuel. My 86 is sucking air now.</p><p></p><p>Have you checked for voltage at the plugs themselves?</p><p></p><p>May want to consider water in the fuel also.</p><p></p><p>If all else fails, disconnect the glow plugs and give it a snort of either.</p><p></p><p>Call the previous owner, ask them if it's done it before.</p><p></p><p>Any questions, feel free to ask.</p><p></p><p>cfpinz</p></blockquote><p></p>
[QUOTE="cfpinz, post: 498935, member: 2383"] That's about my favorite year, neat old body with a solid front axle. Lift pumps are famous for going out, leave it setting overnight after running with the front end facing extremely downhill. If it's a lift pump it will start better than if left uphill. There's a schrader valve on the side of the filter that helps to bleed air out, see if there's fuel pressure there while someone cranks it. There is a plastic return bucket on top of each injector below the lines, each has 2 o-rings in it that go bad quite often. The line from the filter to the back of the inj pump also has an o-ring on each end that will let air in. A lot of these are going bad now with the new ultralow sulfur fuel. My 86 is sucking air now. Have you checked for voltage at the plugs themselves? May want to consider water in the fuel also. If all else fails, disconnect the glow plugs and give it a snort of either. Call the previous owner, ask them if it's done it before. Any questions, feel free to ask. cfpinz [/QUOTE]
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86' 6.9 Wont Start
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