How to replace the timing chain and sprockets on 2004 Chevrolet Blazer?

In order to change the timing chain and the sprockets, pull the engine front cover and the crankshaft position sensor reluctor ring. Turn the crankshaft until timing marks are in line and the number four cylinder is at TDC. Take off the timing chain, sprocket and camshaft sprocket bolts. Install without problems, make sure that components are in place.

OEM 2004 Chevrolet Blazer Timing Chain

Engine Timing Chain

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2004 Chevrolet Blazer Timing Chain Part Number: 12458911
$56.00 MSRP: $87.74
You Save: $31.74 (37%)
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Product Specifications
- Other Name: Chain Kit, Engine Timing; Timing Gear Set; Timing Drive Package
- Item Weight: 1.60 Pounds
- Item Dimensions: 7.2 x 6.3 x 4.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12458911
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2004 Chevrolet Blazer Submodels:
- Base, LS, LT, Trailblazer, Xtreme, ZR2 | 6 Cyl 4.3 L GAS

2004 Chevrolet Blazer Timing Chain

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2004 Chevrolet Blazer Timing Chain Parts and Q&A

Q: How to replace the timing chain and sprockets on 2004 Chevrolet Blazer?
A: In order to change the timing chain and the sprockets, pull the engine front cover and the crankshaft position sensor reluctor ring. Turn the crankshaft until timing marks are in line and the number four cylinder is at TDC. Take off the timing chain, sprocket and camshaft sprocket bolts. Install without problems, make sure that components are in place.