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you probably have a sticking valve lifter.
Valve lash needs adjusting or you have a lifter that is sticking.
Valve lifter could be sticking. Take the valve cover off and start the engine. You can narrow down which one it is. Might Not be sticking and just need adjusting.
take off the valve cover,remove the rockers,take off the intake manifold take out the push rods,then pull out the lifter,if the lifter is mushroomed you may need to get a lifter puller
Or collapsed lifter Or collapsed lifter
Most probably a loose tappet. Check the valve clearances. Or a valve could be sticking in its guide.If the lifters are hydraulic (unlikely on older cars) they might be gummed up. A good flushing oil will clear sticking valve and lifter problems.
2003 v6 90000 miles lifter tap for 3-5 min when i frist start it ? Purchase a can of Seafoam Motor Treatment and follow the directions on the can. This will free the stuck lifter. Seafoam helps liquefy gum and varnish deposits helping to quiet noisy valve lifter
It could be a sticking valve lifter. If you didn't hear it before, it should be investigated. Ticking is not normal.
on a 98 ford taurus what are the symptoms of a bad hydralic valve lifter
The lifter's are all the SAME. the push rods are what is DIFFEERENT. Some are longer the the others. They MUST be put in the right place are you will bend a valve as soon as the engine turns over.
The purpse of valve lifters is exactly what it says, to lift the valve.
The lifter bucket, which is on top of the valve stem, and the spring in the Overhead Cam engine aides in adjusting the valve clearance.