How to remove the camshaft and Lash Adjuster on 4.3L V6 engine for Chevrolet Avalanche,Silverado,Suburban,Tahoe,GMC Sierra,Yukon,Yukon Denali and Yukon XL?

Begin with taking off the camshaft by unscrewing or unbolting the rocker arms, push rods, intake manifolds, timing chains, cam sprocket and balance shaft drive gear; in addition, you may have to do away with such things as fan radiator and condenser. Place the lash adjusters in a labeled box and disconnect the lash adjuster retainer. A special tool can be employed together with magnet or even your fingers to extract the lash adjusters from their bores. Remove the camshaft retainer plate and use three 6-inch long, 5/16-18 bolts as a handle to remove the camshaft from block. When inspecting clean lash adjuster & cam shaft using solvent checking for wear on both of them. The journals as well as cam lobes should be checked for wear. Measure. If its damaged then it must be replaced along with bearings. To lubricate bearing journals and cam lobes with assembly lube, the camshaft will finally slide into engine during installation. Fix other parts like this: install that thrust plate for a Cam Shaft; balance shaft drive gear plus also timing chain & sprockets. Lubricate lash adjusters using clean engine oil then fix them within block. The rest of installation is opposite to that of removing these components. Cooling system should be refilled at last because we are starting again after changing an engine oil filter. Finally start engine (run) and check there are no leaks.

How do you remove the camshaft and Lash Adjuster on V8 engine for Chevrolet Avalanche,Silverado,Suburban,Tahoe,GMC Sierra,Yukon,Yukon Denali,Yukon XL?

To take off the camshaft, first disconnect the cable from the negative battery terminal and release fuel system pressure. From there on, remove; radiator, auxiliary automatic transmission fluid cooler (if equipped), power steering cooler, air conditioning condenser, valve covers, intake manifold, rocker arms, pushrods, timing chain and sprockets, and cylinder heads. Before you remove the lifters arrange to store them in a labeled container. Remove lash adjusters and camshaft retainer plate using a bolt as a handle to carefully pull out camshaft. To check out the camshaft measure lobe height and base circle for lobe lift determination; compare with specifications and replace the camshaft if necessary. Check the camshaft bearing journals for wear or damage; use a micrometer to measure them. Inspect the camshafts lobes for discoloration; score marks; chipped areas; unalike wear. Clean and inspect lash adjuster bodies for damage, wear and proper roller function. Put in place by lubricating bearing journals and lobes with assembly lube before sliding it into the engine, securing it with the Cam Thrust Plate. Install timing chain and sprockets , camshaft position sensor, lash adjusters As well as this refill cooling system, change oil, new oil filter installation precede start up-run engine process.

Genuine GMC Sierra Lash Adjuster

Lash Adjuster Lifter

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GMC Sierra Lifter Assembly, Valve
Part Number: 12648846
$30.10 MSRP: $49.82
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Product Specifications
- Other Name: Lifter Assembly, Vlv; Valve Lifters
- Replaced by: 12698945
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2021 GMC Sierra | 1 TON CREW CAB, 1500 CREW CAB, 1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 2500 REGULAR CAB STANDARD BOX, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CREW CAB 1 TON, CREW CAB 1 TON 119.0, CREW CAB 1 TON 137.0, CREW CAB 1 TON CHASSIS 137.0, CREW CAB 1/2 TON, CREW CAB 2500 LONG BOX, CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1 TON, CREW CAB 6'6" BOX 1/2 TON, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 1 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 1 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 1 TON, EXTENDED CAB 8' BOX 1/2 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, EXTENDED CREW CAB 1 TON 161.5, EXTENDED CREW CAB 1 TON CHASSIS 161.5, REGULAR CAB 1 TON, REGULAR CAB 1 TON CHASSIS 137.0, REGULAR CAB 1 TON CHASSIS 161.5, REGULAR CAB 3/4 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1 TON, REGULAR CAB 8' BOX 1/2 TON, REGULAR CAB 8' BOX 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L, 8 Cyl 6.2L Flex, 8 Cyl 6.6L, 8 Cyl5.3L
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GMC Sierra Lifter,Valve
Part Number: 17122490
$36.58 MSRP: $60.54
You Save: $23.96 (40%)
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Product Specifications
- Other Name: LIFTER, Engine Valve Lifter; Valve Lifters
- Replaces: 5234670, 05234670
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2013 GMC Sierra | 1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB, CREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L
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GMC Sierra Lifter Assembly, Vlv (Afm)
Part Number: 12680871
$45.81 MSRP: $79.72
You Save: $33.91 (43%)
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Product Specifications
- Other Name: Valve Lifters
- Replaced by: 12698946
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2021 GMC Sierra | 1500 CREW CAB, 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON, CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 6 Cyl 4.3L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L, 8 Cyl5.3L
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GMC Sierra Lifter Asm,Valve
Part Number: 97325546
$40.39 MSRP: $70.30
You Save: $29.91 (43%)
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Product Specifications
- Other Name: LIFTER, Engine Valve Lifter; Valve Lifters
- Replaces: 97188458
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2016 GMC Sierra | 1 TON CREW CAB, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 2500 REGULAR CAB STANDARD BOX, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB, CREW CAB 1 TON, CREW CAB 1 TON 119.0, CREW CAB 1 TON 137.0, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, EXTENDED CREW CAB 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 8 Cyl 6.6L Diesel
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GMC Sierra Lifter,Valve
Part Number: 17120060
$37.53 MSRP: $62.12
You Save: $24.59 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: LIFTER, Engine Valve Lifter; Valve Lifters
- Replaced by: 12722012
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2007 GMC Sierra | 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB | 8 Cyl 8.1L
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GMC Sierra Lifter,Valve
Part Number: 17120090
$36.29 MSRP: $60.07
You Save: $23.78 (40%)
Ships in 1 Business Day
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Product Specifications
- Other Name: LIFTER, Engine Valve Lifter; Valve Lifters
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2004 GMC Sierra | 1500 CREW CAB LONG BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L
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GMC Sierra Adjuster, Hyd Vlv Lash
Part Number: 12663277
$2.73 MSRP: $4.31
You Save: $1.58 (37%)
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Product Specifications
- Other Name: Valve Lifters
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 GMC Sierra | CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 4 Cyl 2.7L
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Part Number: 17120735
$37.58 MSRP: $59.12
You Save: $21.54 (37%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: LIFTER, Engine Valve Lifter; Valve Lifters
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2007 GMC Sierra | 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 137.0
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GMC Sierra Lifter Assembly, Valve
Part Number: 12670435
$8.42 MSRP: $13.93
You Save: $5.51 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Lifter Assembly, Vlv; Valve Lifters
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2021 GMC Sierra | 2500 CREW CAB STANDARD BOX, 2500 REGULAR CAB, 2500 REGULAR CAB STANDARD BOX, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CREW CAB 1 TON CHASSIS 137.0, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 1 TON, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 1 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 1 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CREW CAB 1 TON CHASSIS 161.5, REGULAR CAB 1 TON CHASSIS 137.0, REGULAR CAB 1 TON CHASSIS 161.5, REGULAR CAB 8' BOX 1 TON, REGULAR CAB 8' BOX 3/4 TON | 8 Cyl 6.6L Diesel
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GMC Sierra LIFTER ASM-VLV
Part Number: 12721202
$70.16 MSRP: $174.44
You Save: $104.28 (60%)
Ships in 1-3 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2004 GMC Sierra | 1500 CREW CAB LONG BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L
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GMC Sierra Lifter Assembly, Valve
Part Number: 55569933
$2.90 MSRP: $4.81
You Save: $1.91 (40%)
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Product Specifications
- Other Name: LIFTER; Valve Lifters
- Replaces: 12855340
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2021 GMC Sierra | CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON | 6 Cyl 3.0L Diesel
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GMC Sierra LIFTER ASM-VLV
Part Number: 12721203
$114.83 MSRP: $181.49
You Save: $66.66 (37%)
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Product Specifications
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2013 GMC Sierra | 1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB, CREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L Flex

GMC Sierra Lash Adjuster Parts Questions & Experts Answers

Lifter Assembly, Valve
12648846
Q: How to remove the camshaft and Lash Adjuster on 4.3L V6 engine for Chevrolet Avalanche,Silverado,Suburban,Tahoe,GMC Sierra,Yukon,Yukon Denali and Yukon XL?
A: Begin with taking off the camshaft by unscrewing or unbolting the Rocker Arms, push rods, Intake Manifolds, Timing Chains, cam sprocket and balance shaft drive gear; in addition, you may have to do away with such things as fan radiator and condenser. Place the lash adjusters in a labeled box and disconnect the lash adjuster retainer. A special tool can be employed together with magnet or even your fingers to extract the lash adjusters from their bores. Remove the camshaft retainer plate and use three 6-inch long, 5/16-18 bolts as a handle to remove the camshaft from block. When inspecting clean lash adjuster & cam shaft using solvent checking for wear on both of them. The journals as well as cam lobes should be checked for wear. Measure. If its damaged then it must be replaced along with bearings. To lubricate bearing journals and cam lobes with assembly lube, the camshaft will finally slide into engine during installation. Fix other parts like this: install that thrust plate for a Cam Shaft; balance shaft drive gear plus also timing chain & sprockets. Lubricate lash adjusters using clean engine oil then fix them within block. The rest of installation is opposite to that of removing these components. Cooling system should be refilled at last because we are starting again after changing an engine oil filter. Finally start engine (run) and check there are no leaks.
Lifter,Valve
17122490
Q: How do you remove the camshaft and Lash Adjuster on V8 engine for Chevrolet Avalanche,Silverado,Suburban,Tahoe,GMC Sierra,Yukon,Yukon Denali,Yukon XL?
A: To take off the camshaft, first disconnect the cable from the negative battery terminal and release fuel system pressure. From there on, remove; radiator, auxiliary automatic transmission fluid cooler (if equipped), power steering cooler, air conditioning condenser, valve covers, Intake Manifold, Rocker Arms, Pushrods, Timing Chain and sprockets, and Cylinder Heads. Before you remove the lifters arrange to store them in a labeled container. Remove lash adjusters and camshaft retainer plate using a bolt as a handle to carefully pull out camshaft. To check out the camshaft measure lobe height and base circle for lobe lift determination; compare with specifications and replace the camshaft if necessary. Check the camshaft bearing journals for wear or damage; use a micrometer to measure them. Inspect the camshafts lobes for discoloration; score marks; chipped areas; unalike wear. Clean and inspect lash adjuster bodies for damage, wear and proper roller function. Put in place by lubricating bearing journals and lobes with assembly lube before sliding it into the engine, securing it with the Cam Thrust Plate. Install timing chain and sprockets , camshaft position sensor, lash adjusters As well as this refill cooling system, change oil, new oil filter installation precede start up-run engine process.