My F150 2006 5.4 shakes and rattles at certain speeds the code comes up as P0304 have recently changed plugs
SOURCE: codes p1131,p1151,p0171,p0174,p0304
All are fuel related , as in running lean. I'd start by checking all vacuum lines for possible leak, then buy some spray cleaner for MAF sensor & give it a good spray or tuner spray from TV repair place or radio shack, is even better. Ford says not to (they'd rather sell new part) but it will work at least long enough to see if that's the problem before you replace a bunch of parts.
SOURCE: OBD-II CODES P0302,P0304, AND P0353 DISPLAYED ON
If your code reader doesn't have an erase function you can disconnect the battery for a few minutes and that should reset the computer.
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SOURCE: have a 1997 ford thunderbird v8...started running
Light should have stored code. Go to local autoparts chain & get free scan for codes and go from there. Saves all that guess work & money a lot of times. Write down code(s) and let us know.
SOURCE: 2001 Ford Focus w/166K miles; check engine light
Gas Filter? Then scan tool on it,to look for codes set when check light came on. Most likely a senor is old and out of range.
SOURCE: 1999 Ford Taurus 3.0L V6 24V DOHC Duratec Engine
i would check the plug wires and the coils you check the plug wires for bad spots at night start the motor up and look at the plugs if you see a spark arch out the wire and to a peace of metal then the plug wires need to be replace.
, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. 610 views
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idles at 400 rpm and nearly stalls. runs ok at 50 mph as long as i dont step on the gas. check engine light flashed but didnt stay on. the problem comes and goes about 5 times in 10 miles, then rides smooth for 5 miles.
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