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Chevy Equinox Generations Forum
2nd Gen : 2010-2017 Chevy Equinox
Chevy Equinox Engine & Performance
Crank but no start issue
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<blockquote data-quote="Uluz2a6" data-source="post: 23586" data-attributes="member: 3941"><p>I assume this engine was rebuilt because of a catastrophic end? Jumped timing, valves vs pistons and the pistons won? That's why you replaced valves? </p><p></p><p>About 1 in 10 of the 2.4 engines we rebud out here also experience damage to one or both camshafts. The "snout" or keyway end gets spun several degrees when the failed engine came to its abrupt stop. So when you set the timing, it's actually off by several degrees. </p><p></p><p>A leak down test should be your next step. </p><p></p><p>This is all just guessing, as you claim you have correct fuel pressure at rail and spark. </p><p></p><p>You could disconnect your mass air sensor and see if it starts Ina "default strategy" but unlikely. </p><p></p><p>I assume you aren't near Las Vegas, or I could come help you</p></blockquote><p></p>
[QUOTE="Uluz2a6, post: 23586, member: 3941"] I assume this engine was rebuilt because of a catastrophic end? Jumped timing, valves vs pistons and the pistons won? That's why you replaced valves? About 1 in 10 of the 2.4 engines we rebud out here also experience damage to one or both camshafts. The "snout" or keyway end gets spun several degrees when the failed engine came to its abrupt stop. So when you set the timing, it's actually off by several degrees. A leak down test should be your next step. This is all just guessing, as you claim you have correct fuel pressure at rail and spark. You could disconnect your mass air sensor and see if it starts Ina "default strategy" but unlikely. I assume you aren't near Las Vegas, or I could come help you [/QUOTE]
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Chevy Equinox Generations Forum
2nd Gen : 2010-2017 Chevy Equinox
Chevy Equinox Engine & Performance
Crank but no start issue
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