How to replace the timing chain and sprockets on GMC Jimmy?

To change the Timing Chain and sprockets, first you will need to remove the engine front cover as well as the Crankshaft position sensor reluctor ring. Cover the end of the Crankshaft with a 7/16-20 l-inch bolt for rotation of your machine engine except do not use the Crankshaft balancer bolt or over 1 inch bolt as it may damage the bolt threads and the Crankshaft threaded hole. Rotate the engine until the timing marks are fully aligned on both camshaft sprockets, then ensure that the roller set is in the Top Dead Center (TDC) position for the squeeze play. Next, take off the Timing Chain and sprockets, clean, and check them. Install the Timing Chain and sprockets back; remove the bolt used to rotate the engine; the final operation is to install the front cover of the engine.

OEM GMC Jimmy Timing Chain

Engine Timing Chain

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4 Timing Chains found

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GMC Jimmy Timing Chain Part Number: 14087014
$55.75 MSRP: $94.91
You Save: $39.16 (42%)
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Product Specifications
- Other Name: Chain, Engine Timing
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 GMC Jimmy | Base, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
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GMC Jimmy 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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2001 GMC Jimmy | Diamond Edition, Envoy, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
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GMC Jimmy Timing Chain Part Number: 14022647
$87.49 MSRP: $148.95
You Save: $61.46 (42%)
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Product Specifications
- Other Name: Chain, Engine Timing
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1991 GMC Jimmy | Base, High Sierra, Sierra Classic | 8 Cyl 6.2 L DIESEL
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GMC Jimmy Timing Chain Part Number: 10128485
$43.02 MSRP: $64.53
You Save: $21.51 (34%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Chain, Engine Timing
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1998 GMC Jimmy | Base, Envoy, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS

GMC Jimmy Timing Chain

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The Timing Chain in GMC Jimmy is a very operational part that helps to co-ordinate the movement of the camshaft and crankshaft which is necessary for the valve timing and thus, for the efficient functioning of the vehicle's engine. This metal chain is situated at the front side of an engine, need frequent greasing, and is standard on large displacement engines. Metal timing chains have been adopted from the late 1990s to replace rubber timing belt because metal timing chains are very durable and only require replacement very rarely. Despite having relatively low mileage drive train warranties can suffer from lubrication problems or difficulties with the tensioner and chain guides; the potential for this is signified by a rattling sound originating from the front of the engine. Pushrod engines allow a short chain drive to be used since such drive is quieter and wears out faster than gears would be a better idea for GMC Jimmy models.

GMC Jimmy Timing Chain Parts Questions & Experts Answers

Timing Chain
12458911
Q: How to replace the timing chain and sprockets on GMC Jimmy?
A:
To change the Timing Chain and sprockets, first you will need to remove the engine front cover as well as the Crankshaft position sensor reluctor ring. Cover the end of the Crankshaft with a 7/16-20 l-inch bolt for rotation of your machine engine except do not use the Crankshaft balancer bolt or over 1 inch bolt as it may damage the bolt threads and the Crankshaft threaded hole. Rotate the engine until the timing marks are fully aligned on both camshaft sprockets, then ensure that the roller set is in the Top Dead Center (TDC) position for the squeeze play. Next, take off the Timing Chain and sprockets, clean, and check them. Install the Timing Chain and sprockets back; remove the bolt used to rotate the engine; the final operation is to install the front cover of the engine.