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View Full Version : weak spark...

Goinsleeper
05-31-2005, 03:37 PM
my friend checked my plugs last night while i tried to turn the motor over and he said that one was popping harder than the others. well after a few mins i started losing spark. i know if the ignitor is bad than i would have no spark. is it the same for the coil packs? if i was getting weak spark could it also be a ground?
thanks
Goinsleeper
05-31-2005, 07:06 PM
can anyone help? i searched but didnt find anything on the subject...
Goinsleeper
05-31-2005, 08:58 PM
ohh cmon, no one has any idea what could be causing this?!
TheSnail
05-31-2005, 09:00 PM
It could be a bad ground, or a bad coilpack(s), or bad sparkplugs.
Goinsleeper
06-01-2005, 01:27 AM
We put Iridium plugs in that my friend had but not sure what they were gapped at. we just wanted to try it. i put a couple extra ground on the motor (one on valve cover and one on itake manifold) to make sure they were grounded properly. are there any other grounds i should check? also, is there a way to test coil packs instead of just replacing them? would attempting to push start it be a bad idea? probably just to eager to get it running that im not thinking very well but i figured maybe it just needs a little extra umph before it wants to go.
carterdriftscrazy
06-18-2011, 12:19 PM
I have the same thing going on and i have tried vacuum lines, new rotor and cap, i am getting fuel and air, good compression... i just don't understand why it just stopped running. Went two blocks down to get gas, get two gallons and pull out.. then 2000 rpm 0.. wtf??
Vernal
06-18-2011, 10:59 PM
We put Iridium plugs in that my friend had but not sure what they were gapped at. we just wanted to try it. i put a couple extra ground on the motor (one on valve cover and one on itake manifold) to make sure they were grounded properly. are there any other grounds i should check? also, is there a way to test coil packs instead of just replacing them? would attempting to push start it be a bad idea? probably just to eager to get it running that im not thinking very well but i figured maybe it just needs a little extra umph before it wants to go.

Download an fsm and check resistances on the coil packs, diagnostic charts and might as well make sure the gap is correct.