Frstgeneclipse05

I had a similar problem in my 89

89mustangfive0

what happpend what did you do

89mustangfive0

ok so my dad and i looked at the plugs im running and they arent seated correctly as mentioned...its stained around all plugs so tomorrow im gettint he autolites....also my number 4 plug wire had soem breaks in it ( like some cracks) so i rtv'd it and my number 7 wire was f'ed up...so im going to buy another set of the ford racing wires.....this should solve my popping problem hopefully

PJC Racing

Good deal, let us know how you make out.

89mustangfive0

i hope it all works out.....and i belive the driver side headers to h pipe can be tightend a weeeee more..i was afraid of snapping it

89mustangfive0

do you run those autolites in your car???

PJC Racing

Yes, same heads.

89mustangfive0

ok cool....also how wouldi know if my msd coil is no good??

PJC Racing

If the coil is not sparking at all, you can do a resistance check across the the positive and negative poles, if you have infinate resistance the coil is for sure N.G.. If the problemis intermitant you will have to see if the coil is getting a spark signal when it is not firing. If it is getting a signal and not firing (and your ground is good) the coil is N.G..

89mustangfive0

ok new plugs are in ( autolites) car runs muchhh better....no more popping...the popping was probably my motor sucking cold air in because those accel plugs weren seated properly