jjjkkeg Posted November 22, 2010 Report Share Posted November 22, 2010 97 deville 4.6l i replaced the knock sensor it, ran finefor a day.the check engine light was on an it said low pressure knock sensor. had trouble with i think was the battery, every moring had to get a jump after work. got a new battery,it seems to be starting fine with the new battery in. an every since then the car will bolg down. i checked vacum hoses,fuel pressure,air filter,no warning lights on? it only bolgs down when im going 15 to 20mph an i never pushed it to see what would happed if i hit the gas. its idling fine an when its in park an i push on the gas its fine.missed work to fix it so if anyone could help it wold mean alot. thanks Link to comment Share on other sites More sharing options...
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