Having problems with your 2003 Chevrolet Avalanche ?

Where are the spark plugs??? - 2003 Chevrolet Avalanche

Posted / edited by AnonymousUser on : 13-11-2017

Answers :

Look in your engine compartment. Find where you fill the engine with oil, and look on the surface of the engine that it attaches to; you'll see the 4 coil packs for that side of the engine. You'll notice that each one has a large wire leading down to the side of the engine. Where this ends, is where the wire hooks up to the spark plug. The other 4 are on the opposite of the engine, exactly in the same place.
Repair Help & Product Troubleshooting for 2003 Chevrolet Avalanche

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