Car Questions
RepairPal is your advocate for car care advice and guidance

Blows muffler off!

(1992 Cadillac DeVille)
in Mansfield, MO on June 22, 2010
Set timing according to chiltons book,10 degrees BTDC, computer advances up to 46 degrees according to OTC scan tool, altenator tested good at parts store. New plugs, wires, cap and rotor. Port fuel injection. Intermittent backfire and it blows the muffler off. 4.9L, runs good except for the backfire.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
OK, so I bought my car about 5-6 months ago. Within 1 day had a problem with the transmission - felt like it was slip...
Didn't find what you were looking for?