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Chevy Equinox Generations Forum
2nd Gen : 2010-2017 Chevy Equinox
Help!! timing chain issues
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<blockquote data-quote="corvairbob" data-source="post: 20968" data-attributes="member: 5236"><p>thanks for getting back. that test with the cam cover off and seeing the chain go slack told you the chain was stretched.</p><p></p><p>try to get that long screwdriver down by the water pump and listen. it may be the pump but only the stick test will tell. you can change that out without taking it all apart but it will be harder. but first do these other tests as they are easier and not quite a s costly other than time.</p><p></p><p>you should have reset the tension on the balancers if for no other reason than you were there already. if the timing chain stretched the balance chain stretched. how ever if that is the issue i would leave it go and just ignore it as it will not really cause an issue other than annoy you</p><p></p><p>if your up to it you can take the cam cover off, if the ear test fails to show the water pump and see if by chance one of the rockers got lose. you may be able to do that ear tet with the cover off but i can't recall now</p><p></p><p>did that screwdriver test happen to show any noise from the alt? a/c? of the serpentine belt tensioner?</p><p></p><p></p><p> by any chance did you do a compression test. as you could have a sticking valve when it warms up and that can be the ticking, but not any grinding or scraping. this engine has cam lifters and one may have collapsed as well they can be a bit worn. </p><p> <a href="https://www.rockauto.com/en/catalog/chevrolet,2017,equinox,2.4l+l4,3434314,engine,valve+lifter,5548" target="_blank">https://www.rockauto.com/en/catalog/chevrolet,2017,equinox,2.4l+l4,3434314,engine,valve+lifter,5548</a></p><p></p><p>here is one more for testing and adjusting the 2.4 valves</p><p> <a href="https://www.700r4transmissionhq.com/chevy-equinox-lifter-tick-diagnosis/" target="_blank">https://www.700r4transmissionhq.com/chevy-equinox-lifter-tick-diagnosis/</a></p><p></p><p>this link is for the oil flow in those heads for you to review for valve train noise? <a href="https://www.engineprofessional.com/TB/TB120417-1.pdf" target="_blank">https://www.engineprofessional.com/TB/TB120417-1.pdf</a></p><p></p><p>it is a lot to take in but because you had worn timing chain guides you may have got some plastic into the oil system. if you took out the phaser solenoids and found junk on the screen that can be in the head cam follower lifters or that orifice in the head going to them.</p><p></p><p></p><p>this is about all i can think of for now and a lot to digest. good luck and keep us in the loop</p></blockquote><p></p>
[QUOTE="corvairbob, post: 20968, member: 5236"] thanks for getting back. that test with the cam cover off and seeing the chain go slack told you the chain was stretched. try to get that long screwdriver down by the water pump and listen. it may be the pump but only the stick test will tell. you can change that out without taking it all apart but it will be harder. but first do these other tests as they are easier and not quite a s costly other than time. you should have reset the tension on the balancers if for no other reason than you were there already. if the timing chain stretched the balance chain stretched. how ever if that is the issue i would leave it go and just ignore it as it will not really cause an issue other than annoy you if your up to it you can take the cam cover off, if the ear test fails to show the water pump and see if by chance one of the rockers got lose. you may be able to do that ear tet with the cover off but i can't recall now did that screwdriver test happen to show any noise from the alt? a/c? of the serpentine belt tensioner? by any chance did you do a compression test. as you could have a sticking valve when it warms up and that can be the ticking, but not any grinding or scraping. this engine has cam lifters and one may have collapsed as well they can be a bit worn. [URL]https://www.rockauto.com/en/catalog/chevrolet,2017,equinox,2.4l+l4,3434314,engine,valve+lifter,5548[/URL] here is one more for testing and adjusting the 2.4 valves [URL]https://www.700r4transmissionhq.com/chevy-equinox-lifter-tick-diagnosis/[/URL] this link is for the oil flow in those heads for you to review for valve train noise? [URL]https://www.engineprofessional.com/TB/TB120417-1.pdf[/URL] it is a lot to take in but because you had worn timing chain guides you may have got some plastic into the oil system. if you took out the phaser solenoids and found junk on the screen that can be in the head cam follower lifters or that orifice in the head going to them. this is about all i can think of for now and a lot to digest. good luck and keep us in the loop [/QUOTE]
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Chevy Equinox Generations Forum
2nd Gen : 2010-2017 Chevy Equinox
Help!! timing chain issues
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