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Valve Seal Replacement



There’s a good chance I have to replace my valve seals on my ’98 Jeep GC – 5.9 since I am using up 5 qts of oil in about 4-5 mos, no leaks nor smoke except at start-up. How much damage am I causing by not repairing it ASAP ?

How much does a repair like this cost ? Am I better off going to a dealership or a private mechanic ? Everyone knows dealerships will charge an arm and a leg and your 1st born.

Thanks for taking the time to answer.




As long as you keep the oil level up, I would not be too worried about the damage being done to the engine. You may be wearing out the spark plugs a little sooner due to having to burn that oil and the deposits left on the plug. I would estimate between 4 and 8 hours of labor depending on how involved it is to get to the seals. If it is an overhead cam engine, expect a little more time, but I believe the 5.9 is a V-8 with the camshaft in the block. The seals themselves are usually very cheap and the expense of the job is mostly in the labor.

Good Luck,


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Posted: 5th May 2006  |  Author: Kevin Schappell  |  Category: Engine, Oil & Lubrication

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