MustangWorks.com : Ford Forums - View Single Post - Think i found problem, vibration, and knocking noise??

90dpscoupe · 10-12-2001, 01:00 AM

Well my motor has been runing rough lately, also when i was coming home from work, my motor started a knocking sound

i almost @#$# my pants!! i watched oil pressure all the way home, and made my dad listen to it, he said it didnt sound like a rod, or valvtrain noise, we listened to every part of the motor we could, i looked down and noticed my crank pulley seems to be "wobbling" that might explain the rough idle and vibration on the highway? i can also feel through my shifter.

with 179k miles, it maybe time for a new one, although my dad says he never heard a HB make a noise like that? kinda sounds like its rubbing something, im gonna pull the balancer off my friends 85 302 if it will work to see if it clears up, i find no metal shavings in oil, or no loss in performance, sorry for the long post, but thats a scary noise, any opinions?

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90 lx coupe: 5spd, energy susp trans mounts, fms hd clutch, Mac coldair fenderwell, Mac h-pipe, supercoil, ADS chip, 160 stat, aluminum D/S, Black magic fan, 3.27grs.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 98.17
Best 60': 1.9607

someday mods:4.10's, slicks.

10-12-2001, 01:00 AM	#1
90dpscoupe Registered Member Join Date: Jun 2000 Location: sanantonio, Tx, usa Posts: 1,407	Think i found problem, vibration, and knocking noise?? Well my motor has been runing rough lately, also when i was coming home from work, my motor started a knocking sound i almost @#$# my pants!! i watched oil pressure all the way home, and made my dad listen to it, he said it didnt sound like a rod, or valvtrain noise, we listened to every part of the motor we could, i looked down and noticed my crank pulley seems to be "wobbling" that might explain the rough idle and vibration on the highway? i can also feel through my shifter. with 179k miles, it maybe time for a new one, although my dad says he never heard a HB make a noise like that? kinda sounds like its rubbing something, im gonna pull the balancer off my friends 85 302 if it will work to see if it clears up, i find no metal shavings in oil, or no loss in performance, sorry for the long post, but thats a scary noise, any opinions? ------------------ 90 lx coupe: 5spd, energy susp trans mounts, fms hd clutch, Mac coldair fenderwell, Mac h-pipe, supercoil, ADS chip, 160 stat, aluminum D/S, Black magic fan, 3.27grs. Best time: 13.9116(on 225/60/15 firehawks) Best mph: 98.17 Best 60': 1.9607 someday mods:4.10's, slicks.