Plug misfire every 3000-5000 miles

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Posted to Technical Discussion Forum on 6/26/2012 16 Replies

I did a tune up about 12,000 miles ago on this chevy with 132,000 miles. It got plugs, wires, cap and rotor.

It came back about four months later with the CEL on and misfire codes. I replaced #5 and #7 plug and the misfire went away. I also smoked the intake... Login to read more.

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Vehicle Data

1999 Chevrolet K1500 Suburban 5.7L

Engine	5.7 L
Trans	4-speed Automatic (Electronic)

Vehicle Data

1999 Chevrolet K1500 Suburban 5.7L

Engine	5.7 L
Trans	4-speed Automatic (Electronic)

16 Replies Received (View Replies)

16 Replies Received (Hide Replies)

Vehicle Data

1999 Chevrolet K1500 Suburban 5.7L

Vehicle Data

1999 Chevrolet K1500 Suburban 5.7L