# 4 cylinder missing

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kplum3347

Junior Member
Joined
Oct 20, 2022
Posts
1
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0
Location
Lousiana
Ram Year
2014
Engine
5.7
I have replaced the coil pack and plugs. Now the lifter is tapping loud and the # 4 cylinder is misfiring. The compression is fine on it. Any help?
 

RamRod37

2014 Ram 2500 HD 5.7 Hemi
Joined
Jun 28, 2014
Posts
478
Reaction score
504
Location
Georgetown TN
Ram Year
2014
Engine
5.7L Hemi
I have replaced the coil pack and plugs. Now the lifter is tapping loud and the # 4 cylinder is misfiring. The compression is fine on it. Any help?
Well Hate to say it but you either got a Collapsed MDS lifter or the Hemi lifter roller eat lobe off cam shaft. I hope it is just a lifter but knowing the Hemi I have been there myself you more than likely will be doing cam and lifters. Tear down is the only real way find out which. mine was # 6 and mine is non MDS. and compression is fine cause one valve is not opening normally the Intake valve.2.jpg
 
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