Close
QUESTIONS

RepairPal is your advocate for car care advice and guidance

Q: Misfire when accelerating on 2001 Buick LeSabre

Have replaced O2 sensor, plugs & wires, all 3 coils. And have cleaned the mass air sensor. Nothing has helped. Any suggestions?
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
| |
Check to see if you have any visual leaks around the fuel injectors, then check to be sure each one is firing. If these things seem to be fine you may have to remove the fuel rails to do a spray test, to check for clogged nozzle or bad injector.
Didn't find what you were looking for?