What makes spark plug wires hard to come off chevy?

Answer by  kenny39 (232)

Usually what makes plug wires hard to remove is the corrosion that acummulates over time, simply grab the plug wire and twist and pull on it- that should break it free.

Answer by  MechaNick (146)

Most likely improper maintenance, the terminal connections have rusted to the sparkplugs. Try spraying penetrating oil inside the ignition boots and letting it sit for a couple of hours.

Answer by  SyNtEcH (108)

Well park plugs and there wires are in the heads so the will heat up and cool down as it does this it causes shrinkage. Another reason is since there is a electrical current going through them and as they get old this will cause corrosion so it makes it more difficult to unplug them.

Answer by  Doug77 (1433)

Plug wires get stuck because of the hot and cold cycles and from oil contamination that, over the years will "glue" the boots to the ceramic plug.

Answer by  neielg (311)

Turn the rubber boots a few times. Grab them real tight and pull it off the spark plug. Sometimes there tough to pull off, but they will come off.

Answer by  Amber40 (24961)

The boots are designed to be water tight. Try twisting them as you turn to break the seal. Apply some dielectric grease inside the end when putting them back on.

Answer by  Amber40 (24961)

Over time the rubber boot can harder and seal to the plugs. When re-installing them put a dab of dielectric grease in the boots.

Answer by  DesertRat (699)

Most modern engine compartments are designed so it's hard to reach anything, so you'll pay someone to do the work. If that's not the problem, then the most likely answer is that there's some corrosion holding the wires to the plugs. If that's the case, you'll want new wires, not just plugs.

Answer by  MaryL (117)

There is some special spark plug lube that you can get at any local auto part store. Makes it so much easier to remove.

Answer by  Gaur (7676)

Autotrend EFI out of Diamond Springs, California, specializes in EFI conversions, EFI system design, wire harness design, and EFI calibration.