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Discussion Starter · #1 ·
I have a 1999 Taurus SE with DOHC 24V engine. It has just over 100,000 miles on it and there is a severe misfire on cylinders 4, 5, and 6. The engine light flashes. Compression test shows no compression on cyl 5. Rest are okay. Have been told that it needs a valve job at least. Would it be more wise to purchase a used engine or rebuild the existing one? Would like to keep the car since transmission was rebuilt just last year after 85K.
 
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Did they do a wet compression test as well as a dry one? It's sort of hard to tell exactly why there's no compression unless they do a wet test as well.

As far as repairing or replacing, it all depends on cost effectiveness. If it's only the head gaskets, it may be cheaper to repair your existing engine. If it's rings, it would be cheaper to install a new (used) engine from a junkyard car.
 
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