Active Fuel Management AFM DOD Valve Lifters & Guides For Chevy GMC GM 6.0L 5.3L
 
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Item Description
Autopartszone For Chevy GMC Active Fuel Management AFM DOD Valve Lifter 5.3L Set & Guide Trays
The hydraulic roller lifter is designed to compensate for this small tolerance, so that the valve train operates under the condition of zero clearance,
the operation is quieter, the engine life is longer, and there is no need to adjust the valve clearance regularly.
All our parts are strictly tested for quality and manufactured to improve performance. These steps are to control the quality of components that can work for a long time.
 
 
 
 
Features:
Install high-quality lubricating oil before installation, and hold oil in the hole to reduce friction and reduce tappet wear.
Do not start the engine immediately within 30 minutes after replacement.
It is normal to make a noise when the engine is just started.
 



Specifications
Condition:100% Brand New
Warranty: 90 Day
Material: Steel  
Color: Black (As picture shown ) 
 
 
 
 
Fitment
For 2008-2009 BUICK ALLURE 5.3L 5328CC 325CID V8 OHV, (16 VALVE)
For 2008-2009 BUICK LACROSSE 5.3L 5328CC 325CID V8 OHV, (16 VALVE)
For 2010-2012 CADILLAC ESCALADE 6.0L 5967CC 364CID V8 ELECTRIC/FLEX OHV, (16 VALVE)
For 2009 CADILLAC ESCALADE 6.0L 5967CC 364CID V8 ELECTRIC/GAS OHV, (16 VALVE)
For 2007-2008 CADILLAC ESCALADE 6.2L 6199CC 378CID V8 OHV, (16 VALVE)
For 2007-2012 CHEVROLET AVALANCHE 5.3L 5328CC 325CID V8 FLEX OHV, (16 VALVE)
For 2007-2009 CHEVROLET AVALANCHE 5.3L 5328CC 325CID V8 OHV, (16 VALVE)
For 2007-2009 CHEVROLET AVALANCHE 6.0L 5967CC 364CID V8 OHV, (16 VALVE)
For 2011 CHEVROLET CAPRICE 6.0L 5967CC 364CID V8 FLEX OHV, (16 VALVE)
For 2009 CHEVROLET EXPRESS 2500 4.8L 294CID V8 OHV, (16 VALVE)
For 2009 CHEVROLET EXPRESS 3500 4.8L 294CID V8 OHV, (16 VALVE)
For 2007-2009 CHEVROLET IMPALA 5.3L 5328CC 325CID V8 OHV, (16 VALVE)
For 2007 CHEVROLET MONTE CARLO 5.3L 5328CC 325CID V8 OHV, (16 VALVE)
For 2008-2012 CHEVROLET SILVERADO 1500 5.3L 5328CC 325CID V8 FLEX OHV, (16 VALVE)
For 2007-2009 CHEVROLET SILVERADO 1500 5.3L 5328CC 325CID V8 OHV, (16 VALVE)
For 2010-2012 CHEVROLET SILVERADO 1500 6.0L 5967CC 364CID V8 ELECTRIC/FLEX OHV, (16 VALVE)
For 2009 CHEVROLET SILVERADO 1500 6.0L 5967CC 364CID V8 ELECTRIC/GAS OHV, (16 VALVE)
For 2007-2009 CHEVROLET SILVERADO 1500 6.0L 5967CC 364CID V8 OHV, (16 VALVE)
For 2007-2012 CHEVROLET SUBURBAN 1500 5.3L 5328CC 325CID V8 FLEX OHV, (16 VALVE)
For 2007-2009 CHEVROLET SUBURBAN 1500 5.3L 5328CC 325CID V8 OHV, (16 VALVE)
For 2007-2009 CHEVROLET SUBURBAN 1500 6.0L 5967CC 364CID V8 OHV, (16 VALVE)
For 2007-2012 CHEVROLET TAHOE 5.3L 5328CC 325CID V8 FLEX OHV, (16 VALVE)
For 2007-2009 CHEVROLET TAHOE 5.3L 5328CC 325CID V8 OHV, (16 VALVE)
For 2010-2012 CHEVROLET TAHOE 6.0L 5967CC 364CID V8 ELECTRIC/FLEX OHV, (16 VALVE)
For 2008-2009 CHEVROLET TAHOE 6.0L 5967CC 364CID V8 ELECTRIC/GAS OHV, (16 VALVE)
For 2009 GMC SAVANA 2500 4.8L 294CID V8 OHV, (16 VALVE)
For 2009 GMC SAVANA 3500 4.8L 294CID V8 OHV, (16 VALVE)
For 2007-2012 GMC SIERRA 1500 5.3L 5328CC 325CID V8 FLEX OHV, (16 VALVE)
For 2007-2009 GMC SIERRA 1500 5.3L 5328CC 325CID V8 OHV, (16 VALVE)
For 2010-2012 GMC SIERRA 1500 6.0L 5967CC 364CID V8 ELECTRIC/FLEX OHV, (16 VALVE)
For 2009 GMC SIERRA 1500 6.0L 5967CC 364CID V8 ELECTRIC/GAS OHV, (16 VALVE)
For 2007-2009 GMC SIERRA 1500 6.0L 5967CC 364CID V8 OHV, (16 VALVE)
For 2007-2012 GMC YUKON XL 1500 5.3L 5328CC 325CID V8 FLEX OHV, (16 VALVE)
For 2007-2009 GMC YUKON XL 1500 5.3L 5328CC 325CID V8 OHV, (16 VALVE)
For 2007-2009 GMC YUKON XL 1500 6.0L 5967CC 364CID V8 OHV, (16 VALVE)
For 2007-2012 GMC YUKON 5.3L 5328CC 325CID V8 FLEX OHV, (16 VALVE)
For 2007-2009 GMC YUKON 5.3L 5328CC 325CID V8 OHV, (16 VALVE)
For 2012 GMC YUKON 6.0L 5967CC 364CID V8 ELECTRIC/FLEX OHV, (16 VALVE)
For 2008-2009 GMC YUKON 6.0L 5967CC 364CID V8 ELECTRIC/GAS OHV, (16 VALVE)
For 2007-2008 GMC YUKON 6.2L 6199CC 378CID V8 OHV, (16 VALVE)
For 2008-2009 PONTIAC G8 6.0L 5967CC 364CID V8 OHV, (16 VALVE)


Installation Precautions

Before installation 
1 Check whether the oil is clean and whether the recommended grade of oil is used; Note: The grade of oil used in winter and summer is different! If winter is 10W30, summer is 15W40.
2 Check that the engine cylinder head bore is not out of tolerance and that the maximum matching gap is not allowed to exceed 0.10 mm. note: it must be ensured that the standard size of the hydraulic tappet cannot be fitted into the large cylinder head bore!
3. Before mounting, place the hydraulic tappets in groups in an oil bath for at least 4 hours, then test the centre plunger repeatedly with your finger in the oil until it feels firm.

When installing
1 Try not to rotate the camshaft during installation, if this is unavoidable, it should be minimised as much as possible;.
2 Continuous rotation of the camshaft is less harmful than stopping of the camshaft;.
3 If continuous time rotation and stopping is unavoidable, the camshafts should also be kept in different directions.
4 Do not tilt or invert the engine during hydraulic tappet installation to prevent oil spillage into the hydraulic tappet chamber; 1.2.5 Do the refuelling procedure before starting the engine, as this reduces the chance of air entering the hydraulic tappets;

After installation (testing)
1 In some cases (repeated starting/cold starting/overhaul of the engine), the valve train produces an abnormal sound;
2 If the abnormal sound occurs during the first engine run (after overhaul), the engine must be run at a constant speed of 2500 RPM for approximately 4 minutes; 3 Then, allow the engine to idle for approximately 4 minutes.
3 Then, allow the engine to idle for approximately 30 seconds.
4 At this point, the abnormal sound disappears, indicating that the hydraulic tappet is fully vented. If the noise persists, repeat the above cycle.
5 This abnormal noise can be reduced by up to 90% after the first cycle.
6 In some cases, the above cycle can be repeated 5-6 times; 1.3.7 If the abnormal sound can be heard after repeating the cycle 5-6 times, the hydraulic tappet should be replaced.



 
 
Package Included
8 Pcs Valve Tappets 17122490
8 Pcs Valve Lifters 12645725
4 Pcs Plastic Guide Trays 12595365 
 (As picture shown )

 
 

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I purchased by mistake, how do I cancel the order?
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I received your item but it does not fit or is defective
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