have misfire on cylinder 3; replaced plugs, coil pack and fuel injector

Asked by remlap321 Oct 22, 2016 at 08:30 AM about the 1997 Ford Escort

Question type: Maintenance & Repair

1997 ford escort basic wagon won't pass inspection because of misfire on
cylinder 3. Replaced spark plugs, coil pack, and fuel injector

1 Answer

1,280

Have you checked compression. On that cylinder ? Low or no compression. Will cause that dead cylinder issue .it could as simple as carbon keeping the valve from sealing or as complicated as needing a engine or engine rebuild . Have you verified the injector is actually getting it's power /ground i.e. by noid light or test light? Ignition control modules can also cause issues with cylinder misfires on those models . Sorry couldn't be more help but it's going to have to be chased down . Good luck

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