Chevy 5.3 Liter Lifter Noise And Motor Flush Solution How To




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ronnie bock: Brian.  Thanks for the the video.  I have that EXACT sound, but..... mine seems intermittent and is accompanied by a hard start/rough idle.  Any ideas on that one.  I have a theory, but I'll save it to avoid looking like a jerk..haha.

zack mobley: I have a 2004 chevy Silverado 1500 5.3L and it is making the same noise. I noticed to noise one day going to work. I been to a cupple shops and they cant seem to figure out what it is. would I use the motor cleaner or could I use trans fluid and do the same thing??

Fernando Cabrera: Did you use new valve cover gaskets?

alfred delsole: Sorry,I am a tech at a Chevy dealer and have run in to this problem half a dozen times, it is an issue with the cam,and apparently the lobes on the can loose their hardening or flourine coating from having untrained people changing your oil and putting the wrong waite oil in it causes the cam to get mauled and the bottom of the lifter becomes concaved,it only happens to the rear 2 cylander cam lobes,basically what your seeing in this video is misleading and not a part of any kind of auto technician training,sorry to say its some guy just making a video to hear himself talk,this video will actually cost you more money than nessessary in the long run because iff you take the MDI scan tool that gm uses you will see a misfire on the rear cylanders on the scope,after stressing each coil and doing manual compression with a gauge you will see which cylander has the misfire hense the annoying valve tap,spend the extra money and bring your vehicle to a gm technician so you don't pay for a partial disassembly,oil change,and flush,when all this motor needs is to be disassembled with heads cam and lifters removed,and reassemble with 2 new lifters head gaskets and cam.iff you notice even after this guy reassembles the motor,the problem can still be heard.sorry for the people that waisted money on what they saw and heard in this video.

frank whitney: Check to see if you have s tech heads they're bad

huronhockey8: A video review on sea foam would be pretty cool. What are your opinions on the use of this stuff? It sounds pretty heavenly and a solution to a lot of man hours and problems.

treluvsjay1: Hey Brian thanks for providing us the public with great Repair Videos! Anyway had a question for ya, I have a 95 Honda Accord V6 well every time I first start the Car for the day I can hear the Hydraulic Lifters tapping very loudly. Honda switched from a solid valve train to hydraulic lifters for these V6 models in 95 thru 97 so they can't be Adjusted. Well when the car warms up the tapping completely stops and I don't hear it again until after the car has sat for about 4 or 5 hours. I've tried seafoam in the Crank case numerous times and also a product called justice brothers engine tune that suppose to quiet noisy lifters and have had NO luck. What do I do!!??

Chris Henson: motor flushes are bad you will break sludge loose that wont dissolve all the way and and you will end up killing your oil pump at the very least

wafrederick: If you see orange goo inside the valve cover after pulling the valve cover,heads are junk.Crack around the middle headbolt hole allowing coolant in.

The Philosophating Phrog: I work on 5.3 and 6 liter gm motors all the time and we replace the oil pump because they go bad all the time. I would replace the oil pressure sending unit as well since they go bad all the time as well. The tick will go away I will guarantee you that. 

dharleyguy: I was going to try this method on a 2002 Silverado I just bought. So I removed the drivers side rockers. I found one rocker on the front cylinder, with a lot more wear at the push rod side of the rocker than all the rest. Replaced the rocker and push rod..and bobs your uncle. So inspect all your parts before you put your engine back together because cleaning your lifters will not fix a worn out part...

knightfive: my question is when you go to retighten the valves, do you have to adjust or just tighten them up? What about torque?

Servando Leal: Also not many miles only 99,600 ish 

Servando Leal: Hi I have a 2006 izuzu ascender I was told it has the same engine described here it has the same noise but I was told it was losing compression on cylinder four which to my understanding is on the left but the noise seems to be on the right same side as this video can anyone help me as to what I can do. Should I try this?

Joe Johnson: I never liked motor flushes because it can create oil leaks and do damage. You are doing unnecessary work. Change the oil and add a pint of Marvels Mystery oil and change the oil in 500 miles again. In less than 500 miles the noise will go away unless the lifter or cam is worn. Changing the oil and substituting one quart of ATF works also.

David Shields: Just had the exact same problem about 2 weeks ago, same engine. I poured a bottle of sea foam in the engine and before I made it home from the auto parts store(about 5 miles) the noise completely went away and she was running normal again. I flushed the oil twice a couple days after. 

Robert Smith: Have you ever heard of cracked heads with certain GM 5.3 heads. I have an 05 that appears to have coolant in the oil.

HEAVYGUNZ05: After doing this should I go with a heavier weight oil

Rick Nelson: I followed these instructions and found about 8 of the tube clogged up so I think my truck would fit in under this repair umbrella. Hope to figure out why I have no pressure upon reinstall. Only thing I can think of would be the O-ring replacement but I had eyes on the tube and plate when tightening it down. All looked good, no O-ring pinched and hanging out. Lots of gunk in the pan.

Rick Nelson: Just did the Gunk flush, push rod clean up along with the valve covers. Pan off, new O-ring for the pick up tube etc. Buttoned it all up and fired the truck up. No pressure. Had good pressure prior to flush. What could it be and how do I troubleshoot?
2000 Chevy 5.3 with lots of miles. Everything else looked good.
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Chevy 5.3 liter lifter noise and motor flush solution How to