Question about 2005 Ford Explorer

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Car turned off, & now wont start

Car was diagnosed codes po174, p0300, p0301, p0302, p0305, p0306, p0316; replaced plugs, wires, hoses, cleaned egr valve; it started running good, still had a exhaust leak that we couldn't find; while driving it just turned off, and now won't even turn over. could it be the timing belt? help!!!

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1 Answer

You can't have ANY Exhaust leaks BEFORE the
Converter or you won't get rid of the PO174 or have control
of injector pulse or fuel trim
You have a timing chain -no belt
Better use 5W-20 Full Syn Oil if want the
VVT Cam Actuators to last
All those codes are ignition cylinder misfires
All you have done so far is preventative maintenance,
what some call a tune-up which by the way ended some
25 years ago or more.
You have done nothing to diagnose the codes apparently
& find the cause of the fault codes
You have misfire on both banks no matter a V6 or V8
Easy to figure out,need a repair shop or study those
codes on the internet.
Check for vacuum hose leaks EGR etc
Forget the PO300 & 316 they are of no use to you
Do not use it until resolved as you don't know if you
have a Class A or B misfire that could damage the
converter
O2 Sensors ( front ones) get replaced at 100,000 miles
You need a good battery- the motorcraft are okey & made
by johnson controls, but only last about 4 or 5 years.

Posted on Jul 12, 2013

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6ya6ya
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Posted on Jan 02, 2017

  • 116 Answers

SOURCE: 98 E-250 Rough Idle; codes p0156,p1131,p1151,p0301,p0171,p0174+

po301 thru po306 all misfire codes cylinder 1-6 remove plugs and replace them..... set the plug gap first
i suggest u replace the wires also if they never been replaced all these misfire codes can set the others and one is for the oxygen sensor ( 02s or HO2S) CIRCUT MALFUNCTION do u know how to check wireing systems
do the tune up plugs (set gap) .052-.056 change the fuel filter also. clear the codes hows it run
this info is for 98 E-250 4.2Litre
what engine do u have 4.2L or 4.6L i know it is a v-6 by the codes

Posted on Dec 15, 2008

  • 7353 Answers

SOURCE: I have a 2005 ford ranger 3.0L with repetitive engine codes

these engines did have some exh valve issues, service bulletin 05-26-3. one other thing to verify is that the cam synronizer (CMP) is correctly installed. if its not right on, its way off.

Posted on Oct 14, 2009

rogrrabbit
  • 986 Answers

SOURCE: car runs good for about 15 minutes then it starts

its bad fuel injectors. I would do all of them at once its better and cheaper in the long run.

Posted on May 30, 2010

  • 1915 Answers

SOURCE: Missing, running very rough at

the P0011 and P0022 are the camshaft sensors (both sides) are over advanced--common problem on Fords, and is usually a defective VCT solenoid (variable cam timing solenoid)-it will cause your other codes (P0300 random misfire), P0305 (#5 cylinder), P0307 (#7), P0316 (misfire at startup)-P0171 is a lean condition on side 1, where #1 plug is located (look for a vacuum leak, but a faulty VCT could also cause this)-is there any chance the last oil change set this off? The proper viscosity is very important and may have caused these codes.

The P2198 is O2 sensor signal stuck rich bank 2 sensor 1. Has the engine or sensors recently gotten a bath in oil (seafoam?)-this code indicates something of possibly an over zealous maintenance procedure could have damaged maybe the MAP sensor, or more.... Unfortunately, you have a lot of company. At least you didn't crack a piston or hydrolock the engine. Seafoam is pale oil, naptha, and alcohol. With more detail there should be a reason for all those somewhat related codes-post more information.

Posted on Jan 27, 2011

  • 135 Answers

SOURCE: i have a 2007 ford

check spark plug wires and coil packs

Posted on Aug 21, 2011

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2003 jeep liberty 3.7 code po300, po302 what does this mean


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The P0316 DTC code is a generic code that applies to all vehicles. This code means the powertrain control module (PCM) has detected a misfire shortly after startup, specifically within the first 1,000 revolutions. This code may also be triggered with another of the other misfire codes which are P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, P0309, P0310, P0311, P0312. If you have another misfire trouble code also, you should diagnose and repair that code(s) first. Symptoms Symptoms of a P0316 DTC may include: MIL (Malfunction indicator lamp) illumination Rough engine start or idle Potential Causes Potential causes of this misfire code may include: Damaged or defective Crankshaft Position Sensor (CKP) CKP sensor wiring or connector fault Poor fuel quality Ran out of fuel Ignition system malfunction Fuel system malfunction: injector or fuel pump Mechanical engine problem Damaged PCM Possible Solutions First off, you'll want to repair any other misfire DTC codes if present prior to diagnosing this code. If you own a Ford vehicle and you have a P0316 along with one of the other misfire codes, you should check for appropriate TSBs (technical service bulletins), as there are some TSBs that in part involve reprogramming the PCM. Doing that requires specialized equipment. Some Ford vehicles even needed a new cylinder head as a result of the valve. Regardless, if you have a Ford with multiple misfire codes including this one, check for TSBs. If the P0316 is the only code, then it's time to do a bit more diagnosing of the crankshaft and camshaft position sensors, and their associated connectors and wiring. A tip we've found is "Since this code indicates a start up misfire, pay attention to items which may expand or contract when cold (if the code sets when the engine is cold), or hot (if the code sets on a hot restart)." Realistically, the freeze frame data from the PCM will be helpful in tracking down the problem. As will a good DVOM (digital volt-ohm meter), so you can perform tests on the wiring and the sensors.

Read more at: http://www.obd-codes.com/p0316
Copyright OBD-Codes.com

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Please get back to us if you have further query or else please accept the solution.

Thanks for contacting fixya.com



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