2007-08-06 10:33:29 · 5 answers · asked by Bobbie L 1 in Cars & Transportation ➔ Car Makes ➔ GMC
If the housing has never been replaced please do so.The housing has been upgraded sence the car came out.Also a good time to replace the spark plugs.
2007-08-06 13:47:55 · answer #1 · answered by HyperGforce 7 · 0⤊ 0⤋
If you find that the coil pack or packs are no good by either checking the resistance or by finding poor output, then no you should not have to change the housing. If you suspect that the spark is jumping through the housing into ground then you should replace the housing and use the old coils. The only reasons to replace the housing is physical damage or a pinhole that allows spark to jump. I have only replaced one housing due to a pinhole. Good luck.
2007-08-07 14:22:55 · answer #2 · answered by Deano 7 · 0⤊ 1⤋
If you have your Haynes manual at the ready you can check the resistance of the coil pack (ohms) to see if your suspect problem is bad or if it is something else.
Primary resistance is between 0.2 and 2.0 ohms and secondary 4,000 to 7,000 phms. Your car model manual will be more specific.
The housing has the ignition module in it and is a separate potential problem that may or may not have to be replaced.
They may be able to plug into it at your auto parts store to run a diagnostic on it.
Good Luck!
2007-08-06 17:51:27 · answer #3 · answered by CactiJoe 7 · 0⤊ 1⤋
it may not be anything but the housing. the crack and sometimes you can't even see it. pull the housing off and see if it looks burned. if it does just change it. get to plug boots while you're there and the plugs wouldn't be a bad idea either. good luck
2007-08-06 18:33:04 · answer #4 · answered by barb_wyre2003 2 · 0⤊ 1⤋
replace the housing and that should take care of it
2007-08-06 22:36:38 · answer #5 · answered by tott1 5 · 0⤊ 1⤋