very odd intermitent problem please help asap (excuse spelling)

89lxstang5.0 · March 25th, 2008, 12:23 AM

please take time to read this.... sry its so long just figured id make sure i explain the problem well

ok... i have 89 lx stock 302 pretty much stock, aem brute force intake, msd cap and rotot excel wires... i am having a problem that started about a week ago... i thought i ran out of gas but i wasnt all the way on e... so i put gas in it it started ran fine... i parked it that night and the next day i began having the same problem... it would run for a while and once i reach running temperature or so it would cut off and then not start just keep cranking.... so i let it sit for 5 or so minutes and it starts right up.. and runs fine... so i assume fuel filter... replcaced fuel filter thought i fixed it nope... problems keeps up... so i came to the conclusion that it could be spark. so i pulled out a plug plugged the wire on it and held against block when it wouldnt start i didnt have spark... so i put a new coil o n it.... itis still having the problem but it seems like car runs fine then just starts actin up... i also notice when its getting ready to act up and while its acting up if i tach it up my tach starts jumping around before it stalls... does anyone have any clue what this is... i was thinking distributor or module but im tired of buying parts that arent the problem... so thanx in advance i could use any advice available....

90% sure it is a spark issue

ryans88gt · March 25th, 2008, 12:27 AM

sounds like the ignition module and they are a common replacement part for these engines.

blackdragon · March 25th, 2008, 12:57 AM

sound like the ignition module or computer? might have a short some where?

neverfastenough1 · March 25th, 2008, 12:59 AM

Originally Posted by ryans88gt

sounds like the ignition module and they are a common replacement part for these engines.

+1 Try running the codes to see what you get.

March 25th, 2008, 12:23 AM	#1
89lxstang5.0 Newbie 1989 mustang lx Join Date: Sep 2007 Location: Baltimore, MD Posts: 41 iTrader: 0 reviews	very odd intermitent problem please help asap (excuse spelling) please take time to read this.... sry its so long just figured id make sure i explain the problem well ok... i have 89 lx stock 302 pretty much stock, aem brute force intake, msd cap and rotot excel wires... i am having a problem that started about a week ago... i thought i ran out of gas but i wasnt all the way on e... so i put gas in it it started ran fine... i parked it that night and the next day i began having the same problem... it would run for a while and once i reach running temperature or so it would cut off and then not start just keep cranking.... so i let it sit for 5 or so minutes and it starts right up.. and runs fine... so i assume fuel filter... replcaced fuel filter thought i fixed it nope... problems keeps up... so i came to the conclusion that it could be spark. so i pulled out a plug plugged the wire on it and held against block when it wouldnt start i didnt have spark... so i put a new coil o n it.... itis still having the problem but it seems like car runs fine then just starts actin up... i also notice when its getting ready to act up and while its acting up if i tach it up my tach starts jumping around before it stalls... does anyone have any clue what this is... i was thinking distributor or module but im tired of buying parts that arent the problem... so thanx in advance i could use any advice available.... 90% sure it is a spark issue

March 25th, 2008, 12:27 AM	#2
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 4,627 iTrader: 0 reviews	sounds like the ignition module and they are a common replacement part for these engines. __________________ 88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it

March 25th, 2008, 12:57 AM	#3
blackdragon Regular 1979 ford mustang Join Date: Nov 2006 Location: shelton Posts: 89 iTrader: 0 reviews	sound like the ignition module or computer? might have a short some where? __________________ my 1979 october 9th fox body mercury capri.i've gone through 4 engines now. my capri is for sale. contact me at: bluedragon130@hotmail.com

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