You have no oil pressure and hydraulic lifters, they are gonna be noisy. Remove the oil pan and replace the oil pump pick up tube o-ring. They usually start to go bad around the 150k-200k. To verify you can add extra oil, 3-4 quarts and jack the rear of the truck up to put the oil to the front of the pan, and above the o-ring, start it up and see if your pressure is better.

When you have lifter noise in these motors,, check your oil pressure. If its around 30lbs, you have to put a new o-ring on the oil pickup tube into the oil pump and clean the debris clogging the pickup screen.When done, your oil pressure should go back up to 45 lbs.Dont forget to flush the gunk out using transmission fluid, kerosene, or whatever brand you use.

Like the guys are saying here. I have fixed two by simply replacing the $8 pick up tube “O” ring. They flatten and crack. It’s like sucking through a straw with a hole in it. The “O” ring and gasket from dealer very inexpensive. Go after that before thinking you have bearing or pump issues. I removed valve cover before and after and immediately saw the oil in the front. Before the ring change the oil never made it to the top end of 1 and 3. Good luck.

My first thought was that the noise was coming from excessive valve lash, but then I thought all GM V/8's had hydraulic lifters, so then I concluded that with that oil pressure being that low the engine has some severe oil bleeding somewhere. I would not drive that truck with oil pressure that low. This assessment is coming from arm chair mechanic!

mine was doing same....changed the o ring on pickup tube to oil pump connection and all is better now.

Low oil pressure and looks like no oil is coming up the pushrods, I'm surprised it doesn't sound worse.

This is one hell of a fantasy custom truck

It happens in Impala sedans, too! Experience taught me that.

Back in my day we used to use temporary "clips" that install on the pushrod side of the rocker arm to contain the oil that got sprayed while you were troubleshooting. I was surprised to see no oil at all when you were running the engine.

The filter behind oil sending unit could be clogged after tacking it out complet if you dont have pressure its the pump no cost and can be done with two swivels without pulling intake. Still doing it pull heads and the lifter trays inspect each lifter and look for pits and flat spots also make ahure cam is not hurt it super as 2 hour job bottom to top front diff if it4wd22mm, dont nees to pull axel, pan bolts all 10mm including harness grommet and trans line grommet then both plastic inspecrion plates also 10mm, two 15 mm bolts on bellhouseing to pan its gonna fall out. One 10mm on thw oring side of pickup rube and 3 13mm. Harmonic balance24mm and puller. Water pump 6 10mm bolts. Timing cover and oil pump 10mm. Intakecover is 8mm then 10mm cover bracket.move harness or has a 10mm on it also unplug knock vacume booster, fuel line tool os the yellow one 8mm to remove intake.note before pulling heads remove coolant censor 19mm cause they break very ez dipstick toob 15mm coils and heater hose bracket all 10mm valve cover 8mm rockers 8mm exhaust os either 13mm or 10mm gm iaed both heads all 15mm lifter trays 10mm pull lifters them move bad words ise feeler gage to install oil pump and just a lil tip of you have a basic obd2 scanner when your done unplug the main harness to the coils roll it over several times to peime rhw pump then erase the misfire xodea 2 hours later you ahouls have a very noise free engine with 45-60 lbs I do several a month ask mw anything and I'll be a great help to you

I had an lifter tic in my 08 GMC 5.3. I used Lucus synthetic oil stabilizer along with 5/30 synthetic mobile1 oil, and so far so good.

To prevent lifter & oil pressure problems in LS engines , add 1/4 of a qt of automatic transmission fluid to the crankcase 100 miles before you change the oil & filter....do this on every oil change 3 to 5000 miles, this is the easiest fix for any pushrod engine..!

I had the same problem on my 06 crew cab Z71. I tried all the motor flushes that I seen on previous KZfaq channels. It’s seem to go away just a little bit but would come back it got louder and louder. After doing tons of research and learning about the GM piston slap. It is due to the cast iron block and the oversize skirts on the Pistons that will tap until the truck is heated up. This was not the case in my truck. I ended up calling and putting new LS seven a listers new lift her tray and new pushrods. I have drove it now for over 40,000 miles and zero sound. I also noticed before I done the work on it my all pressure would hardly get up to 40 pounds only if I was deep into the gas pedal. Now since the works been done I can barely tap it in my old gauge will get up over 40 every time I’m dealing with a front differential problem now after the truck being lifted. Also the slapping under the dash is the intermediate steering shaft had to change that as well. That should have been covered under GM as well. Seems they are only building for looks now not durability and sound lol

Oil pump pick up tube o-ring need to be replace if you have low oil pressure

I have a 06 3500 with the 6.0 with 335,000 miles , Its been ticking for the last 150k Miles. Sometimes it does it sometimes it don’t. I’m going to drive it till it quits and put a new engine in it.i have great oil pressure though

My 5.3 blew cylinder 7 which was about 20,000 mi after engine rebuild from Chevy for excessive oil consumption recall. I sent it to a speed shop and replaced lifters, valvesprings pushrods along with new cam, headers, full exhaust, DOD delete and custom tune. Oh man could she breathe after that

Changed out my oil pump and started running 15w40 on mine and runs good at 283000 miles still running strong

After u replace oil pump and still have noise, use a long steel pipe ,put one end to ur ear and the other on each rocker . One t a time of course, u should be able to tell which one is loose. Turn a 1/4 at a time till it stops. At least that was how it use to be.

I have seen a lot of these engines tapping with good oil pressure, but they had the wrong w oil, changed oil to recommended fixed like magic.

Always check oil pressure manually first If none pull pan check pickup screen. If clear replace pump. 30+ yrs

I got a 06 6.0 with 275k miles and the tick just happens when I start it up,after a while It goes away and I make sure to check my oil pressure and it’s always good

My 2008 started doing that at low mileage so I got rid of it and got a 2013 f150 xlt 5.0 and haven’t had one problem. About to hit 90k miles.

If you are a owner of any chevy truck or tahoe years 2001-2014 use full synthetic oil like Royal Purple or Mobile 1 then get one bottle of Rislone and add to every oil change do this 2 times at 2,500 miles only for the first two oil changes and after u can go your normal oil changes but it will take away the lifter ticking or lifter knocking I had the same problem when I first bought my 2005 chevy tahoe LT with 149,000 miles and did this process and it took it away completely it took me driving maybe 50 miles and it stop.. And now I have 189,000 and never ever made any sound since trust me Rislone works with oil changes on the chevy 4.8 and 5.3 engines its been around for 50+ years look it up

I bought a f250 6.7 for this very reason. Lack of power in comparison to dodge and ford and the famous lifter tick. Glad I did. Life long Chevy guy before this.

I just rid my '05 1500 5.3 of the tapping noise. What I notice is whenever someone removes the valve cover, there is a copper or dark film. Makes me thinks there is "sticktion" going on. I solved by running Marvel prior to oil change (oil went from clean looking to black). Then used Marvel in the fuel. Went on several 100+ mile drives, and all gone. Mine has 120,000 and bought it for "when you need a truck" and it sits for a few weeks without being started. I will be running it at least once a week now.

Have a 2016 Suburban with the 5.3. $8900.00 later, we have new LIFTERS and a camshaft installed. Cylinder deactivation lifter failed. Old school lifters don't fail. Oh and it's had Mobile ONE synthetic oil its entire life.

If no oil pressure, ck oil level, pull oil pan strainer not stopped up replace the pump if that don't fix,pull engine may have bad cam bearings.

My LM7 swapped 68 C10 made the same noise but it was to late. The push rod is now in the shape of the letter S. live and learn.

It's a well known fact that 99' gmc sierra's have a problem with lifter and valve ticking. Why has there not been a recall on this problem? GMC needs to step up and recall these vehicles back and fix these problems and do the right thing. It's obvious that there is a design flaw and should have been fixed before they even put these vehicles out to sell. They don't mind taking our money but they won't stand behind their product that they sell.

I had same problem with mine a 2001 GMC 2500 6.0 everything was fine nothing out of place but took off oilpan found some needle bearings thought they were from rocker arms wrong they are smaller well it turns out a lifter turned and the small wheel was almost worn out to the center after engine dissembly lifter turned and I guess while driving for several 1000 miled I think the cam got so hot from friction all cam bearing surfaces the babbit was gone bearings worn down to the copper part and one spun in the bore--bye bye biock. Hope you have better luck.

Is the rear bearing in the muffler

oil pick up tube the o-ring is bad .

There is no oil pressure at all since those little hole up from the lifter there should be spraying it with oil constantly if not means you fucked the block is dirty and those oil cannals are not letting to flow any oil

O-ring on the oil pickup tube in the oil pan is bad

Wouldn't let you work on my truck running it that long with no oil coming out of the pushrods..

Notice no oil on the rockers 😳🧐👍🏿

Looks like oil pressure is the problem.

This is from a GM Mechanic, there’s not enough oil pressure. Need a bigger pump, maybe an external stand alone pump.

I actually changed my oil pressure sensor which restored my oil pressure dramatically. Still got the ticking noise though. Getting real pissed as I just purchased this truck!!

That low oil pressure would be THE FIRST thing I would be fixing

Change your oil pump

No oil up top red flag

The fact that you were squirting oil everywhere is a good sign

It's the o ring on the oil pick up tube that hooks to the oil pump have to drop the oil pan you might as well replace the oil pump and timing chain and sprocket well you at it 😅

Here is my new video showing a camshaft and lifter replacement for anyone who is interested in replacing them this will give you an idea of what's involved. kzfaq.info?o=U&video_id=jt9SLgeufZA

Holy shit. Freaked me out with the missing beard

Looks like no or extremely low oil pressure I didn’t see any oil flowing out pushrods

My 4.2 Ford F150 does the same thing only when it’s in drive though

My 5.3 with 186k does this with 40 pounds of oil pressure at idle and 70 any other time like warm up or on the throttle.. noticed some slight metal in the oil

They make oil clips to use running with valve cover off...

Oil pick tube o ring. That fix my 2000 gmc

A little sea foam in the crank case pumps up my lifters after each oil change

You should far more oil flowing out of the lifters than that ! When I was diagnosing the lifter noise in my LS1 engine oil was squirting out of the lifters everywhere, I tested the oil pressure when warm which was 30 PSI at idle,40 @ 2000 RPMs & 60 @ 4000 RPM's so that was all good. In your case, it could be a bad oil pump or engine bearings,in my engine,the lifters got a bit mushroomed & stuck in the lifter bores. So,I'm going to replace all of the lifters. I know in my dads car he fitted a used Buick L36 V6 engine which they had taken the oil pump off. All of the lifters rattled on startup & no oil made it up to the top of the engine so we hooked up an oil pressure gauge to test it at the oil pressure switch port. There must've been an air pocket in the oil galleries because the oil pressure shot up to 60 PSI @ idle speed as they have a high volume oil pump fitted standard.

*Question! I have 40lbs Of pressure of oil but I’m having a tapping noise like the video, what can be wrong?*

The o ring was the issue with my 6.0

My old 5.0 f150 used to sound like that and it had around 200k miles... sold it to a friend and he drove it as is for another year or so before it got taken away from him....

Had this issue before an was gm that actually caused the dammage an didnt stand behind warranty. Long story short took heads off replaced headgaskets an when they saw felpro head gaskets no alarms went off for them so they put their oem gaskets on an never trued the heads. Ok if you see other gaskets wouldn't you think ok these were off before better true the heads. Nope just slapped back together an their on i was dilling coolant reservoir every two weeks. I knew what was happening an around a 1000 miles i would get that knocking like tou had an knew where my coolant was going straight into oil an fought with them they knew i was right but still threw b.s my way corporate was usless. Never again with a chevy dealer. This was their top mechanic on my truck. This guy is a joke an i had my words with him also.

you dont have enough oil psi you need to check that first 15.20 psi at idle hot 40 -60 cold

Question, how can I get this 4 minutes added back onto my life?

Mine ended up being the screen under the oil pressure switch , I removed the screen an now no more noise

My 86 s15 is ticking like this too. Just had engine rebuilt and transmission but when trans went it it kinda added this ticking. The oil pressure gauge is all the way up and check gauge light is on what can it be? Been less than a month with rebuilt engine

Looks real clean under the rocker cover, or did you clean it up?

Also can lifter noise mean a valve could drop into the cylinder? I heard these rumors. Thanks.

Block under the valve cover they're hitting the cover if you look

what causes that sound and what is the cost to fix it with a mechanic my car is Chevrolet Silverado 2011

The rocker arms seemed ok, have you removed the intake manifold and actually looked at the lifters?

Why does your cluster not tell you about low oil pressure? Mine sounds similar to yours on winter cold starts, gonna end up getting high volume oil pump and o ring replaced.

So I watched the second vid but couldn't understand if the o ring fixed the tick and the oil pressure also?

was there any codes for a miss and how did the engine seem to run performance wise? low power or pretty normal? thanks!

I have a 2005 Chevy 2500HD with a 6.0 liter. It has, I think one, making noise from about 5 minutes after starting until about 10 minutes and then goes away until the engine has sat and cooled. It has been going on for a few months. I have added Marvel Mystery oil to it for a few oil changes and the first couple of times the lifter sticking noise went away but back now.

while you have the valve cover off and the engine idling you can push down on the end of the rocker thats over the top of the valve spring and find out which spot is making the noise

Bruh the oil did not come out whyy!!! The oil should come out from the small hole in the rocker😟

My Silverado has the same noise and some mechanic told me it’s the timing chain ?

Good video it's so helpful, but I would like to know if I can change a lifter with out removing the head?

I HAVE A PROBLEM WITH MY TRUCK OS MAKING A RATTLING NOISE THAT SEEMS THAT IT COMES FROM THE BOTTOM OF THE MOTOR BUT IT MIGHT BE A LIFTER IDK :( I have a video to show you if you can help me out please

mine just started making the same sound but it's a lot louder

stuck oil pressure valve in oil pump

hello because there is no lubrication I have the same problem with the same noise?

Mine has a little ticking sound especially now that its getting cold. its more of an on and off thing. the noise comes and goes.

It doesn't seem like a collapsed lifter they're all moving good

It’s the oil pump

i have the same problem in my truck but i changed the lifter and spring when i did the cam swap what could it be

I got a 2012 chevy silverado 4.8 and it's also making that noise. So would it be the lifters? Or?

What was the problem after all i have a 09 gmc sierra 1500 with same issue any tips on what i need to do to fix that tick

I just had a oil change tho

O ring on sump tube

Never said how many miles on those motors

The rocker arms are too dry - no oil fix it immediately or next will be rod knock.

Go Aftermarket like Comp Cams or Crane ( if they are still in business). Better Quality than OEM junk

What is the whining noise my truck is doing that

What happens if you don't fix it? What ends up failing?

Can a bad oil pressure switch and screen cause ticking ?

I have a 2008 silverado 5.3, and now i have a loud knocking noise(sounds like metal on metal) coming from the engine, that when driving gives a little stall and kick to go along with every knock, very concerning, ever heard of anything like that.?

I have lifter tick but my truck has good oil pressure. Never that low. probably dry starts

My Chevy 2010 has a lifter noise on left side cold starting then fades away, my oil pressure reads 40 good pressure? Anyone have some info, it has 80,ooo miles

I'm having the same sound to my truck any clue its knock n make a bad sound n oil pressure low too

I have an 06 Sierra with a 5.3 and I have the in famous lifter tick it sounds just like that but it goes away so I'm going to have to replace the lifter I have oil pressure

Does anyone kno if I can remove the lifters the same way the cam comes out? Bottom of my lifter broke and can’t remove true the top, plz help! Thanks!

I have lifter tapping now coming from the left side of my 6.0 2001 lt chevy suburban. My oil pressure is at 40 while idling and goes up about 60 when driving. Also it gets weird sometimes when idling (gets a little rough.) What must I do? Thanks.

i have high oil pressure and my 04 5.3 silverado has lifter tick can you please help out!