2007-07-17 07:57:40 · 3 answers · asked by timothy j 1 in Cars & Transportation ➔ Car Makes ➔ GMC
If you are replacing the same coil pack every time, check the spark plug wires. This is usually an indication that the coil is working too hard and building up heat. That is caused by a resistance problem which is usually open or high resistance wires. Also be sure the module and area back to the battery ground paths are good. Sand as required to make sure the ground side has no resistance. I would also check the plugs. Good luck.
2007-07-18 07:19:38 · answer #1 · answered by Deano 7 · 0⤊ 0⤋
could also have a bad injector driver in the computer or high resistance in a ground would cause a voltage spike and fry it. Also make sure to put some dielectric grease on the underside of the coil pack that helps disipate heat on these without it it will also short out early.
2007-07-18 15:41:05 · answer #2 · answered by chriz_64 2 · 0⤊ 0⤋
bad grounds may be to blame.
2007-07-17 14:09:29 · answer #3 · answered by littleheuey 2 · 0⤊ 0⤋