Engine stumbles under load only when leaving stop ligh
Asked by GuruVBFG4 Aug 18, 2018 at 06:19 PM about the 1971 Ford Thunderbird
Question type: Maintenance & Repair
I have a vintage 1971 Thunderbird 4 Door with a stock 429 except for new
Edelbrock carb. The car runs great except once it gets warm, it stumbles and
pings very bad from a stop light under a load(engine revs fine in neutral). It has
new points, condenser and coil.
Any ideas?
5 Answers
Sorry....timing's been checked numerous times....it's just difficult to tell if it's fuel or electrical and I'd love your advice on that. Something is causing it to only have the symptom under a load and particularly when up to operating temperature. There are new plug wires but they are 7mm guage....perhaps not strong enough?....perhaps something more serious like a valve?....any other advice would be most appreciated! Thank you!
Hallo Ik heb ook een Ford Thunderbird uit 1971 en zoek een kachtel motor Hebt u die of weet u iemand die wel zo'n motor heeft? Mag ook een hele sloopauto zijn Graag reactie Bij voorbaat dank Vr vd Veen Engels Stove Engine ?
Had a 68 eldo that pinged and stuttered when accelerating. It needed a higher octane. Had a 67 Impala with the same problem. It was a cracked distributer cap. Hope that helps.
