KBHnavi Posted August 3, 2020 Share Posted August 3, 2020 I have a 2008 Navigator, experienced sputtering around 2500 tp 3000 rpms. Engine light would come on and flash then go out. Replaced plugs and coil packs, no change. Any ideas? Quote Link to comment Share on other sites More sharing options...
akirby Posted August 3, 2020 Share Posted August 3, 2020 Was it missing on one cylinder or sputtering like it was out of fuel? Could be a bad injector, fuel filter or the fuel pump. Quote Link to comment Share on other sites More sharing options...
bbf2530 Posted August 4, 2020 Share Posted August 4, 2020 (edited) 5 hours ago, KBHnavi said: I have a 2008 Navigator, experienced sputtering around 2500 tp 3000 rpms. Engine light would come on and flash then go out. Replaced plugs and coil packs, no change. Any ideas? HI KBH. Just to add to akirby's list of possibilities: The PCM could also be shot. And...driving with a flashing CEL for long is not good. You can wind up destroying the catalytic converters and other crate other costly problems. Good luck. Edited August 4, 2020 by bbf2530 Quote Link to comment Share on other sites More sharing options...
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