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Jack the front off the van up, properly support the van with jack stands. remove left wheel then remove the splash covers in the wheel well, should expose the manifold. Use a ratchet an extension and a universal plus a spark plug socket remove the plugs. and reinstall you must use the universal (wobble) due to the working angles on install of the new plugs... or the will crack the ceramic on the plug

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14y ago
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Q: How do you change the spark plugs on a 2003 gmc safari?
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