Question about 1998 Chevrolet Blazer

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I have a miss fire

I did a tune up to my blazer. i changed the spark plugs, wires, distributer cap, and changed the oil. it was running fine before the tuneup. now i have a miss fire and the truck runs rough. i had the spark plugs and the wires checked. what else could be the problem?

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  • Harvey N Tawatao
    Harvey N Tawatao May 11, 2010

    Recheck the Firing order. 1-6-5-4-3-2 On the distributor cap passenger side radiator to fire wall. 2-4-6-coil On the distributor cap drivers side radiator to fire wall. 3-1-5 Cylinder passenger side radiator to fire wall 2-4-6 Cylinder drivers side radiator to fire wall 1-3-5 Good luck and this should help and check to make sure the cap is on right.

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  • Master
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Make sure the plug wires are in the right place. The passenger side is cyls, 2 4 6 and the drivers side is 1 3 5. The dist cap should be marked but the pass side is, going front to back 2 4 6 , coil wire and the drivers side is 3 1 5

Posted on Nov 13, 2009

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  • Chevrolet Master
  • 3,854 Answers

Recheck the firing order; 1-6-5-4-3-2

On the distributor passenger side radiator to fire wall. 2-4-6-coil
On the distributor drivers side radiator to fire wall. 3-1-5

Cylinder passenger side radiator to fire wall. 2-4-6
Cylinder drivers side radiator to fire wall. 1-3-5

Good luck and also check the distributor cap again for proper seating.

Posted on Nov 13, 2009

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