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What is the gap on spark plugs for GMC Vandura 3500 1993?

The recommended spark plug gap for a 1993 GMC Vandura 3500 depends on the engine it has. The Vandura 3500 came with several engine options (e.g., different V8s and possibly a V6). You must identify your engine's displacement (e.g., 5.7L, 7.4L) to know the correct gap.

You should consult your owner's manual for the precise specification. If you don't have the manual, you can try:

* Looking at the existing spark plugs: Sometimes the gap is stamped on the plug itself, or you can compare the existing gap with a spark plug gapping tool. *Caution:* Don't rely solely on this; the previous gap might not be correct.

* Checking a repair manual: A Haynes or Chilton repair manual specific to your year and engine will have the correct specification.

* Checking online resources: Search online for "[Your engine displacement] spark plug gap" along with "1993 GMC Vandura". However, always double-check this information against a reliable source like a repair manual.

Incorrect spark plug gap can lead to misfires and damage to your engine. It's crucial to get this right.