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Re: tapping from lifters
Hi! From your Brief description it appears you have a lazy lifter, A good engine oil flush with a Quality ~Synthetic oil replacement plus filter should help also try a fuel additive you may be using poor quality fuel? Press the Blue Button please to appraise my FREE! Effort. Thank You! Paul 'W' U.K.
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Here are 3 causes for lifter tick!
Bad Lifter, Dirty Oil Deposits, Bent Push Rod, The rocker arms will make a noise if push rod clearance is not adjusted right. God-Bless! and hope this helps you!or the rocker arms may be worn.
Most engines now use hydraulic lifters and they can leak a little, this causes space between then lifter and the push rod. This results in a tapping noise that goes away when they get warm or fill back up.
Hello Francois, the tapping sound you hear might be coming from a bad valve lifter, a bad camshaft lobe, a bent push rod, a broken valve spring, a broken rocker arm or the valves may need to be adjusted.
could be anything from belt noise to lifter tick to rod knock..lifter tick is under the valve covers..rod knock sounds like hitting the block with a hammer..if its rod knock see what your oil pressure is.. should be around 30 to 45 psi cold..warm will be as low as 15..depending on oil type..most lifters can be adjusted by removing the cover and doing adjusting depending on the vehicle..good luck
Bearing noise will usually stop after the oil pressure builds up, unless they are really bad. And then they usually screach. You may have a bad push rod, lifter or rocker arm. Try to locate which side it is comming from and remove the valve cover. The one in question will be sloppy. You can fix the rocker arm and rod from here. If it is a lifter you have to remove the intake manifold.
Hi , usually a knocking / pinging from the valve cover indicates a lifter tapping. Could be worn out or just worn. Do you change your oil every 3000 with high quality oil? (I always have used valvoline standard with outstanding results) Dirty oil and filter and or incorect weight oil and or using synthetic oil in older cars can result in lifters tapping. If your oil is under 2000 miles since last change and you used a high quality oil (watch who changes your oil, some places use inferior oil because its cheaper) you can buy a pint of oil treatment formula to quiet noisy lifters to coat the lifter and quiet it down. It is a sign of engine wear, but one lifter tapping a bit wont really hurt your engine mechanically. If they all get noisy, time for a valve job. Root cause is wear due to insufficient lubrication. The lifters on newer cars are all hydraulic and they self adjust. No manual adjustment is possible. Bottom line: keep your oil changed regularly using a high quality non-synthetic oil for your 1999 vehicle.
Please rate this answer! Thanks, Mike
dodge rocker arms or usually on a rod that bolts across the head and sets presser all the same if you have lifter noise you could have worn liters or cam lobe ware weak oil pump bent push rods remove valve cover and investigate