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#4580109 - 11/20/17 01:44 PM Chevy valve tick
1_high_bald_guy Offline


Registered: 09/03/08
Posts: 44
Loc: CA USA
I have an 05 Tahoe with 155k miles. OC done at about 4-5k miles tops. I started getting the valve tick intermittently but now I get it when sitting idle for a few minutes (fully warmed up). The oil pressure is good. I tried Rislone recently and that didnt help much at all. Any suggestions? Maybe some type of engine flush? Thanks in advance.

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#4580114 - 11/20/17 01:48 PM Re: Chevy valve tick [Re: 1_high_bald_guy]
555 Offline


Registered: 06/08/09
Posts: 372
Loc: New England
What brand and weight oil did you put in there?
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#4580124 - 11/20/17 01:56 PM Re: Chevy valve tick [Re: 555]
1_high_bald_guy Offline


Registered: 09/03/08
Posts: 44
Loc: CA USA
Originally Posted By: 555
What brand and weight oil did you put in there?


Valvoline Full syn Maxlife 5w30

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#4580142 - 11/20/17 02:35 PM Re: Chevy valve tick [Re: 1_high_bald_guy]
oldhp Offline


Registered: 06/28/12
Posts: 1629
Loc: USA
Maybe try isolating which side the tick is on. Pop the valve cover off and take a look at the rocker arms. Any loose??? Springs ok??? With the engine warmed up and running I used to hold a rag folded over on the push rod side of the rocker arm while pushing on it. If tick goes away, you've found which one. Maybe a bad lifter, a worn rocker arm........ Good Luck!!!
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#4580160 - 11/20/17 03:00 PM Re: Chevy valve tick [Re: oldhp]
1_high_bald_guy Offline


Registered: 09/03/08
Posts: 44
Loc: CA USA
Originally Posted By: oldhp
Maybe try isolating which side the tick is on. Pop the valve cover off and take a look at the rocker arms. Any loose??? Springs ok??? With the engine warmed up and running I used to hold a rag folded over on the push rod side of the rocker arm while pushing on it. If tick goes away, you've found which one. Maybe a bad lifter, a worn rocker arm........ Good Luck!!!


Itís defintely coming from the drivers side, sounds like itís coming more towards the front.

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#4580162 - 11/20/17 03:02 PM Re: Chevy valve tick [Re: 1_high_bald_guy]
E150GT Offline


Registered: 03/11/12
Posts: 1106
Loc: San Antonio, TX
one of my coworkers has a chevy and it ticked. Required an Oring on the oil pump.
_________________________
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#4580236 - 11/20/17 04:34 PM Re: Chevy valve tick [Re: 1_high_bald_guy]
oldhp Offline


Registered: 06/28/12
Posts: 1629
Loc: USA
Ya know........check the exhaust manifold bolts. Chevy had problems with the bolt heads breaking off, and the little exhaust leak will sound like a "tick". shrug
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#4580323 - 11/20/17 06:14 PM Re: Chevy valve tick [Re: 1_high_bald_guy]
eyeofthetiger Offline


Registered: 11/18/17
Posts: 683
Loc: South Carolina
Front driver's side, and oil pressure is good? I am going along with the bad lifter. Of course, you have to pull the cylinder head off to get to it, and if the lifter is chewed up you might need a camshaft, too. It just happens sometimes.

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#4580388 - 11/20/17 07:04 PM Re: Chevy valve tick [Re: 1_high_bald_guy]
WyrTwister Offline


Registered: 01/13/13
Posts: 1531
Loc: Texas
V-6 ? V-8 ?

Sounds like you put good oil in it .

If it were mine , I might pull the valve cover ( as has been suggested ) & see what I learned . Then go from there .

Back in the day , a valve tick , on start up was not uncommon . If it went away after it warmed up , it was often ignored .

Best of luck to you , :-)
_________________________
Wyr
God bless

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#4580415 - 11/20/17 07:19 PM Re: Chevy valve tick [Re: 1_high_bald_guy]
1_high_bald_guy Offline


Registered: 09/03/08
Posts: 44
Loc: CA USA
Itís a V8 4.8L.

As far as the exhaust manifold bolts I replaced them with ARP bolts when I replaced the header gaskets.

Iím hoping it isnít a bad lift. I havenít had the time to pull off the valve covers just yet. The tick does go away shortyly after I give it a little gas. It doesnít tick constantlyz

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#4580427 - 11/20/17 07:34 PM Re: Chevy valve tick [Re: 1_high_bald_guy]
WyrTwister Offline


Registered: 01/13/13
Posts: 1531
Loc: Texas
I think the company truck I drive has the 4.8l V-8 .

2008 model Silverado with 160,000 + miles & it purrs like a kitten .

Does it tick more or less , after the engine warms up ?

Best of luck to you , :-)
_________________________
Wyr
God bless

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#4580449 - 11/20/17 07:57 PM Re: Chevy valve tick [Re: WyrTwister]
1_high_bald_guy Offline


Registered: 09/03/08
Posts: 44
Loc: CA USA
Originally Posted By: WyrTwister
I think the company truck I drive has the 4.8l V-8 .

2008 model Silverado with 160,000 + miles & it purrs like a kitten .

Does it tick more or less , after the engine warms up ?

Best of luck to you , :-)


Itís hit or miss. Sometimes when itís a cold start it doesnít tick at all until itís warmed up. It usually starts to tick sometimes while sitting at a stop light for an extended amount of time, then goes away once I get going.

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#4580460 - 11/20/17 08:12 PM Re: Chevy valve tick [Re: 1_high_bald_guy]
WyrTwister Offline


Registered: 01/13/13
Posts: 1531
Loc: Texas
I might go up one " step " in viscosity ...........


Best of luck to you , :-)
_________________________
Wyr
God bless

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#4580468 - 11/20/17 08:19 PM Re: Chevy valve tick [Re: WyrTwister]
1_high_bald_guy Offline


Registered: 09/03/08
Posts: 44
Loc: CA USA
Originally Posted By: WyrTwister
I might go up one " step " in viscosity ...........


Best of luck to you , :-)


I was thinking about doing that this next OC. Thanks

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#4580480 - 11/20/17 08:29 PM Re: Chevy valve tick [Re: 1_high_bald_guy]
WyrTwister Offline


Registered: 01/13/13
Posts: 1531
Loc: Texas
My understanding is the 4.8l Chevy V-8 is an " LS " engine , one of the latest in the Chevy small block engine family . With many " improvements " from the older 283 , 305 , 307 , 327 , 350 , 400 .

You might do some google searching for this problem ? Or , also , do some searching on YouTube . I watched some videos by a guy call " MyVintageIron " on YouTube , about LS engines . Can not remember much about the oil pump / system . Might be able to leave some questions in the comment section of one of his LS videos ?

Hopefully , the " thicker " oil will do the trick .

Best of luck to you , :-)
_________________________
Wyr
God bless

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