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2001 Chevy tracker 2.5 24 port double overhead cams

It is tapping when running sounding like the driver side valve cover I still can't find the tap with everything off

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Remove valve cover , start and run on low idle, adjust loud tappit. First turn in (clockwise) tap will get lowder then turn back til tapping stops.

Posted on May 07, 2017

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Posted on Jan 02, 2017

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1 Answer

2001 Durango 4.7l. No compression on all 4 cylinders on ONE side. Decent compression on all 4 other side. Ideas?


That is an overhead cam engine - a separate cam on each cylinder head. Remove the valve cover on the side with no compression and see if the cam is turning.

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1997 ford taurus is tapping when cold. I want to lengthen the pushrod. What size do i need?


The Taurus has overhead cams, no pushrods. The cams are in the valve covers.

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2001 Sunfire 2.2L, Car started Noise seems to coming from top of Eng . Lifters is my guess, is there anything that would make similar noise, or that I should be checking, How can I be sure it is lifters?


You make have a bad or sticking lifter, remove the valve cover and have someone tap the key, make sure to disconnect the ignition coil to avoid the engine from starting, as they tap the key you will look for the valve to close, a good way is to watch the one next to it open, when the valve is open then you will know the other is closed as there are two valves per cylinder. with the valve closed grab rocker arm and see if theres a lot of play in the direction it moves if it does then look at rocker and push rod and if those are good then you have a bad lifter. if this engine use an overhead cam then there will be no rocker arms or push rods you will need to look for any worn lobes on cam, a stethiscope would be a good tool. start engine with cover off and listen to each cylinder and pin point noise, this will get a little messy as oil will be splashing out a little but its the best way to locate the noise. poor oil flow would cause this also or a loose timing chain. i would start at the top first and look inside cover. good day.

Jun 15, 2011 | 2001 Pontiac Sunfire

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Light tapping driver side valve cover in rear area 1973 chevy small block corvette engine. when engine rives up the tapping gets a little louder, the tapping is light, not a deep knocking sound.


The valves are out of adjustment or possibly a lifter is collapsed. A service manual or many sites online can provide you with information and a few different methods of adjusting the valves.

Oct 25, 2009 | 1972 Chevrolet Corvette

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Lifter tapping


Yes, you can have just a lifter replaced, but it could be other parts as well...like a valve, rocker, or cam shaft. The valve cover needs to come off for a better inspection.

Aug 04, 2009 | 2001 Jeep Grand Cherokee

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2000 quad cam subaru wont start after replacing cam belt


Your 180 off dont try to start it anymore unless you want bent valves.I just bought a fixer w/bent valves due to 180 off time the woodruff key on a Subaru isnt tdc its the vertical line on the outer fin on the pulley in line with the vertical line on the oil pump 12 oclock the top cams single line 12 oclock. II the double lines pointing 6 oclock pointing to bottom cams II double line at 12 oclock.A manual  is pricless for this info and saves time

Apr 07, 2009 | 1999 Subaru Legacy

1 Answer

2001 300m


Tapping sound could be a worn cam shaft, or a bad valve spring. try adding a bottle of Marvel Mystery oil to free up the spring, since you had the engine apart. Dirt may be the problem. Good luck.

Apr 06, 2009 | 2001 Chrysler 300M

1 Answer

64 Chevy pickup, rebuild engine, tapping noise in


Remove the valve cover and rotate the engine and check to see if all the valves are opening the same amount. If not, you have either a bad lifter, bent pushrod, or cam going flat. Check your valve lash with the valves closed. You should be at 0 lash at all of the rocker arms.

Mar 01, 2009 | Chevrolet S 10 Cars & Trucks

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2001 Chevy Metro


Check Utube for lifter tap, valve tap, and rod bearing noise. If you pull each spark plug one at a time, plugging it back in after each one, the tapping will go away if it's a rod bearing. At any rate, on your next oil change add some valve-medic or similar additive for valve noise. Make sure you follow direction or you will get massive lifter tap if you pour it into a cold engine.

Oct 29, 2008 | 2001 Chevrolet Metro

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