88 K1500 5.7 sputtering, backfiring occasionally

[dirkhood]

Changed the plug wires tonight like suggested by JcAT and so far so good. I checked for vacuum leaks and at present, it doesn't appear to be the issue. Thanks again everyone. If it continues to run like it did tonight, we are sitting good!

[j cAT]

Originally Posted by dirkhood

Changed the plug wires tonight like suggested by JcAT and so far so good. I checked for vacuum leaks and at present, it doesn't appear to be the issue. Thanks again everyone. If it continues to run like it did tonight, we are sitting good!

the wires even out of the box new I have found defective. I check the resistance when ever new plug wires are installed or when replacing plugs.

If you have any problems or can help others post back ..

[fmx_guy]

just a suggestion but, if your using cheapo plugs the problem will be back in 3-6 months i would reccomend using a/c delco or better. i had the same type issue. the cheap ones work good for awhile but in the end your gas mileage starts to suffer and then the sputtering starts.