Question about 2001 Chevrolet Silverado

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5.3l making an tappining noise on passenger side of engine. Took valve cover off an the middle push rod is not moving when engine is running. tried trans fluid in motor oil an drove it a min drained o

I have drove truck about 60 miles nothing changed still same tapping noise. Has good oil pressure any ideas?

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  • Expert
  • 351 Answers

You may have a collapsed lifter

Posted on Jan 11, 2015

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6ya6ya
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Posted on Jan 02, 2017

  • 2920 Answers

SOURCE: when shifted to any 4wd position it will not engage

you may have a bad transfer case

Posted on Jan 12, 2009

  • 62 Answers

SOURCE: my engine oil looks like chocolate milke shake

In some cases I have seen blown intake manifold gaskets cause a milkshake in the crankcase inspect the lower intake gaskets coolant passages at the end of the cylinder heads for damage. I would suggest a compression test and a cylinder leak down test befor further tear down.

Posted on Jul 02, 2009

joecoolvette
  • 5660 Answers

SOURCE: Grinding noise front end.

I say it's the CV joints. You have to jack up under the lower A-Arm, to take the spring pressure off of it, to check them.

(Use jack stands, and wheel chocks behind the rear tires. Emergency brake On. Work on a hard level surface. Be SAFE! Trucks can be replaced, YOU cannot!)

Posted on Jul 26, 2009

  • 2 Answers

SOURCE: 2008 Chevy Silverado 5.3 Motor Knocking Sound

Its is a common problem for these engines. There is a problem with the design of the piston where carbon causes a knocking sound, very noticeable when its colder and has been sitting. It should go away after it warms up. If it does not, then it is probably something else all together.

The only way to fix the problem if it is only knocking when its cold is to pull of the heads and soak the cylinders and piston heads in solvent.

I have a 2001 Silverado 5.3 that has been doing it since I got it, I contacted GM about it and they assured me it does NOT do any damage to the engine.

Posted on Oct 09, 2009

ftw1952
  • 10319 Answers

SOURCE: not sure i am locating the oil drain plug or the

Transmissions are drained by removing the pan itself. A new filter is to be installed upon draining. That is why there is no drain pan plug. The Chevy Powerglides were the last American made car with a drain plug in the 1965

Posted on Apr 24, 2010

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Kia sorento 2012 produce sound look like power steering problem and it gets louder when ever I acceleration gear, so I took belt out and start the engin with no belt I found that sound was in engin!!


If its a knocking sound:

A KNOCKING SOUND IN THE ENGINE IS MOST LIKELY CAUSED BY ONE OF THE FOLLOWING
1. PISTON SLAP: Makes a sharp metallic noise. Idle engine and short out each cylinder plug. The noise will disappear when plug with bad piston is shorted. Noise will also disappear at acceleration. This can be caused by worn or out of round cylinder, or broken piston ring. Correct problem by re-boring cylinder and/or replacing piston.
2. VALVE NOISE: Makes clicking or rattle noise. Caused by excessive wear on valve stem or lifter, out of adjustment, or stuck valve. Correct by adjusting valve clearance, replace worn valve or lifter, regrind cam, replace valve guide and /or valve. A stuck valve can sometimes be loosened by passing oil through the carburetor while engine is running.

3. ROD BEARING KNOCK: Makes sharp metallic noise similar to a piston slap. Detection is opposite of piston slap. Rod knock is not heard at idle. Knock becomes louder as engine speed is increased. Caused by excessive rod bearing clearance. Correct by adjusting rod bearing clearance to .0015 inches by removing shims. May require re-pouring rod bearing.
4. REAR MAIN BEARING KNOCK: Makes dull knocking or thud noise. Detected at speeds between 20 and 50 MPH. Knock will normally decrease or disappear while pulling or decelerating. Noise will be detected the loudest at normal driving speed, when not pulling or decelerating. Correct by adjusting bearing clearance to .001 to .0015 inches. If knock is excessive, crank should be checked for out of roundness. May need to re-pour all main bearings to correct.
5. TIMING GEAR KNOCK: usually the most difficult to diagnose. If gear is loose or badly worn it will knock in all ranges. Run engine slightly above idle speed. Slowly open and close throttle. Knock will continue to be present, but just as engine slows down knock will become a slight rattle. Remove timing pin and reinsert into timing hole on timing gear cover. Press timing pin tightly against timing gear and accelerate slightly above idle. Knock will significantly be reduced or disappear. Correct by replacing both timing gear and crank gear as a matched set. The two gears should have a backlash clearance of .003 to .004. If more than .009 inch backlash, an oversize (.005) timing gear should be installed.
6. WRIST PIN SLAP: This can not be detected by shorting out the cylinder plugs. Rapidly accelerate and decelerate the engine speed. The engine will pass through a certain speed range when the wrist pin will rattle at about the same pitch as a valve tappet noise. This can be corrected by installing a new wrist pin bushing in the rod or new wrist pin f badly worn. Wrist pin should fit the piston and connecting rod with a tight metal to metal fit. The pin can be pushed into the piston and rod with a slight pressure of the hand. Pin to rod clearance is .0003 to .0005 inches.

Dec 15, 2013 | Kia Sorento Cars & Trucks

1 Answer

Either a load tapping or a clicking sound wen the engine is running some said it was the main bearing so i need to replace the motor but i think it might be a bent push rod my car run fine but only with...


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.

Jul 03, 2011 | Pontiac Grand Am Cars & Trucks

1 Answer

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

1 Answer

How do i adjust the valves on 81 chevy 350


First, remove the valve covers. turn the engine over by hand until #1 comes up on Top Dead Center. #1-3-5-7 is the driver's side front to back and 2-4-6-8 is passenger side front to back. As the timing mark on the bottom pulley nears the 0 mark on the timing tab the valves on #1 should nor be moving. This is #1. If they are moving then you are coming up on #6 and the engine should be rotated one complete turn to reach #1.
With the engine on #1 you can adjust #1-3-4-8 on the exhaust and #1-2-5-7 on the intake. Back off the adjusting nut until lash is felt at the push rod and then turn the nut back in until the play is just removed. Then give the nut 1 full turn in.
Rotate the engine 1 complete turn again to bring it up to the #6 position.Make sure the timing mark is lined up with the 0. You can now adjust #2-5-6-7 on exhaust and #3-4-6-8 on the intake.
Hope this helps.

Mar 12, 2011 | Chevrolet Chevy Cars & Trucks

2 Answers

1983 ford ranger 2.2 engine-no heat,full of anti-freeze,replaced thermostat 195 degrees,found a bunch of gunk in heater control valve box?under carb ,heater core doesnt seem to be blocked,took most of dash...


im not sure how to remedy the heat problem, make sure the heater core is actually hooked up as many people simply run a bypass. I do know that you need to return the vacuum items because if there is a cable that means it is not vacuum actuated. the gunk may well be radiator or headgasket sealant which unfortunatly causes blockages and buildup in heater cores. i would suggest giving closer inspection to the heater core because everything else you have done is spot on. good luck

Dec 28, 2010 | 1983 Ford Ranger

1 Answer

Engine not failed oil pressure good engine ticking think it is rod bearings how do you replace on 1997 chev Blazer


hold up rod bearings were did you get that?lets take it from the top.camshaft lobs move lifters on rotation,which lifters move push rods,push rods push valves up and down,which other side of valves push up and down valve stems,which open and close exhaust and intake stems.ok now were clear on that to see your push rods.take off your valve covers on side with tick.1.check for valve loosness.need a feeler gauge for this and specs for you truck to do this.because ticking is mostly associated with valve loosness or to tight.2.if rod is bad loosin valves but not off and inspect the rods for bends.on a flat surface.replace if bend.also make sure they to go back in same place.and repeat step 1.finally noise continues need to take in and checked possible internal damage.

Aug 17, 2010 | 1997 Chevrolet Blazer

1 Answer

Oil leak on top front of 2002 f350 super duty diesel engine


if it's a diesiel the it's coming from your oil line to your turbo. if it is gas then it could be a leak coming from a leaking valve cover gasket.

Aug 22, 2009 | 2002 Ford F350 Super Duty DRW Reg. Cab

4 Answers

3.1L engine ticking noise


This a piston slap. GM recognised this problem years ago but instead of repairing 100,000 motors they call it "normal". If it goes away after warm up you should be ok to keep driving it.

Apr 19, 2009 | 2000 Pontiac Grand Prix

1 Answer

94 chevy z 71


Old gas turns to varnish which can cause the valves to seize in the valve guide,bend push rods or even bend the valves themselves.NEVER put old gas in an internal combustion engine.

Mar 14, 2009 | 1994 Chevrolet K1500

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