Question about 2005 Ford Taurus

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Engine Code PO 300 and PO 316 came up when running diagnostic

My Car intermittently will not start on the first try but usually does on the second try. Also I here a clicking sound at the instrument panel. Once the Car starts it is fine. Autozone ran a diagnostic and came up with codes PO 300 and PO 316. Could this be a Ignition relay problem?

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  • Ford Master
  • 633 Answers

P0300 is random multiple cylinder misfire and P0316 is misfires detected on start up. This is an ignition related issue. I would check the ignition system and tune up condition and proceed from there also if you have access to a sanner with live data capability check that you have and RPM reading when cranking the engine and the times it deosnt want to start this would indicate an issue with the crank sensor

Posted on Oct 27, 2012

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Posted on Jan 02, 2017

  • 708 Answers

SOURCE: 2000 Ford Taurus Flex Fuel V6. Check engine light

your code is or the following. Fuel Pump Secondary Circuit Malfunction. This may involve removing your gas tank to fix. Go to the parts store and they can get you the parts you need and let you know for sure.

Posted on Jun 29, 2009

  • 58 Answers

SOURCE: ford mustang 1966 ignition problem.

The starter solinoid is bad.Clean and check battery cables also.

Posted on Jun 21, 2008

  • 82 Answers

SOURCE: 2005 Taurus Program Codes PO 300 and PO 316

P0300 maens random multiple cylinder misfire.
When was the last time the car was tuned.
Check plugs and plug leads are O.K
also check that fuel cap is on tight.

Posted on Oct 15, 2008

  • 11 Answers

SOURCE: Turn ignition on and only get a click sound at

starter is sticking cahange it

first make sure ur enigne turns

Posted on Jul 15, 2009

  • 4 Answers

SOURCE: Instrument panel went dead

Checked Every fuse in the fuse box (no small task).This includes #4 - Power point Instrument Panel, #14 - Day time running lamps (auto lamps doesn't work nor does auto lock), #27 - ignition switch run feed, #35 - Instrument Cluster, #41 - Instrument Cluster, #42 - Delayed Accessory, #45 - Ignition switch run/start feed, #102 - Door locks body security module, #103 - Ignition switch, #110 - Ignition switch, & #116 - Ignition switch. But I also check all other ones as well, they all register OK. AC panel & radio work. Turn signals work. Mileage does not work, trip computer does. So, basically, everything works except auto head-lights, auto locks, and the dash cluster (no MPH, RPM, mileage display, Fuel, Temp, Tran Temp, and Oil Pressure).

Posted on Sep 30, 2009

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2005 Taurus Program Codes PO 300 and PO 316


May need to clean the egr valves because if one is stuck then the other bank would be enriched to make up the difference .In order to reset the computer when your done is unhook battery and then reconnect. But realize some radios are subject to needing a code to make them work again because of a theft sensor. Here are some a few sensors and what happens when the don't work right.

ECT sensor
symptoms
Potential Symptoms

Symptoms of a P0118 could include:

* Very poor fuel economy
* A no start condition
* Vehicle may start, but run very poorly, blowing black smoke, running very rough and misfiring
* Illumination of MIL

TPS sensor

Symptoms of a P0121 trouble code could include:

* Malfunction Indicator Lamp
(MIL) illumination (Check Engine Light or Service Engine Soon light)
* Intermittent stumble on acceleration or deceleration
* Blows black smoke on acceleration
* No start

EGR valve

Usually a fault in the control circuit, will leave no noticeable symptoms other than the Malfunction Indicator Lamp (MIL) illumination. However, if the EGR control solenoid
is stuck open due to debris, etc. the code may be accompanied by misfire under acceleration, rough idle, or engine dying altogether.

po171

You will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration.
Causes

A code P0171 may mean that one or more of the following has happened:

* The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
* There could be a vacuum leak downstream of the MAF sensor.


These are the main ones
God Bless Greg

Dec 20, 2008 | 2003 Ford Expedition

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