[frmg0014]

Does anyone know the factory spark plug gap on a 2001 Cadillac Catera? I've done some searches but all I could find was a range..but not a specific gap size. What gap do u guys use when u replace ur spark plugs?

 

[iraclewis]

The shop manual reads (0.035---0.043in) but depending on the spark plugs you get, most read 0.040in,
Tighten plugs @ 19 ft lbs.