Spark Plug Gap help

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Jan 25, 2007 | 03:06 PM

Rob_1990_Bronco

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Spark Plug Gap help

I'm gonna do a tune up on my 1994 F150 6cyl .... what is the gap needed for the spark plugs? I'm using NGK.
Thanks.

Jan 25, 2007 | 03:43 PM

Rob_1990_Bronco

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anyone please??

Jan 25, 2007 | 03:54 PM

jroehl

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From: Lafayette, IN

The I6 is the one I don't know. All the others are 0.042-0.046". There should be an emissions label or engine tuning label under the hood somewhere with the proper gap on it. I always set mine to the low end of the range--that way, as they wear, they open up and stay in range longer.

Jason

Jan 25, 2007 | 04:39 PM

andym

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From: Bonita Springs FL

It's the same range for the 300. .042 to .046. I'd skip the NGK's, if it were my truck, and go with autolites.

Jan 25, 2007 | 04:48 PM

Rob_1990_Bronco

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They didn't have Motorcraft at the dealer, then they didnt have autolites at the parts store, so I went with ngk which were even more expensive then the autolites.... if it starts running crappy I'll put in autolites. Thanks guys.