It idles rough but has for years, lately while driving it randomly cuts out, dies. I have to put it into neutral and restart it then back into drive. Sometimes it will do it again sometimes not. Seems electrical or maybe fuel. But it idles fine. When I first start it in the am it idels good for 10 or so seconds then stalls, I restart it sometimes it'll do it a second time then its fine. It also idles rough but never stalled/cut out while driving before this week. It is a 302 5.0 L EFI. I put a can of throttle body cleaner in the dual butterflys, then put a can of seafoam in gas tank to see if that was it. Then I replaced the fuel filterafter doing that it ran just fine around the neighborhood. Later that day it started stalling/cutting out again. So I replaced the cap, rotor, plugs and wires. This did not solve the problem. The low pressure pump in the tank has been replaced last year. Could it be the high pressure fuel pump, fuel pressure regulator on the rail, or some other fuel component. Im not sure about it being a fuel problem because while idling in the driveway I can hit the acclerator and it rev's just fine no cutting out but it backfires when you suddenly let off the gas peddle.
have the same problem?
Sunday, September 25th, 2011 AT 2:39 PM