Question about 2004 Ford Mustang

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I have a 2004 ford mustang v6 3.9 L with codes p0174 p0316 and p0305 service engine soon light on . When car warms up to normal temp it starts shaking and sounds horrible.... PLEASE HELP !!! What should I do? I have replaced so many things..

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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tunde007
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SOURCE: Service engine soon light on

Hi, 1151 is an 02 sensor code, 1131 is also 02 sensor code,
0174 lean condition bank 2, and 0171 is lean bank 1. Either this is in need of a whosale of repairs or you have computer issues, From looking at the codes i would first do a complete tune up, Including wires, And inspect for a vacume leak before replacing any 02 sensors..
Take care

Posted on Aug 07, 2010

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  • 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

  • 4 Answers

SOURCE: reset service engine soon light 2004 ford mustang

It is not recomended to disconnect the battery and turn the light switch or horn or anything else on in order to clear codes stored in memory because any settings stored in the computer may be lost too.Go to autozone and rent the scanner to do it yourself.It is very easy,just connect the scanner to the connector located below the dashboard, turn the ignition on but not the engine and follow the prompts then when it says: clear codes?hit yes or enter and that is it.This is the safest way to do it.

Posted on May 26, 2009

  • 1 Answer

SOURCE: Ford Mustang service engine soon and check fuel cap lights are on

just went through this myself. first be sure there are no leaks incap as suggested. second, since computer system pressurizes fuel system as part of emissions, any possible leak, like in filler neck to tank, will trip the check engine. that fixed it for me - last summer. now, new problem showed up again. this time 2 different trouble codes: EGR valve and a pressure sensor. fixed the problem. a week ago, light back on. this time a no $ fix-loose vacumn hose. best advice like the other guys said is to get it scanned and start there.

Posted on Oct 27, 2009

  • 117 Answers

SOURCE: 2003 Ford Ranger 4x4 extended cab- diagnostics

P0171------ system too lean bank#1
Po174------ system too lean bank#2
For these 2 codes, try cleaning the maf sensor (mass air flow), that is mounted in the big black hose that goes from the air filter housing to the throttle plate, if it is dirty, that will cause those 02 sensors to send a signal to the computor to lean the air fuel mixture. If cleaning it doesn't work, the sensors will probably need changing.
P0300---- Random/multiple cylinder misfire
P0316---- Cylinder misfire at start up---- first 100 revolutions.
On those 2 codes, you have to do some testing to find out why there is a misfire.
Possible causes:
dirty/malfunctioning injectors
weak coil pack
fowling spark plugs/wires
Low fuel pressure

Posted on May 12, 2010

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My check engine light is on and the codes po305 and po174 what exactly should I do?


Definition of Diagnostic Trouble Code P0305 Category: Powertrain Definition: Cylinder 5 Misfire DetectedNote: This definition of P0305 is applied to all manufacturers

Definition of Diagnostic Trouble Code P0174 Category: Powertrain Definition: System Too Lean Bank 2Note: This definition of P0174 is applied to all manufacturers

Jul 05, 2015 | 2007 Ford Freestar Limited Minivan

1 Answer

I got a diagnostic test on my car cause my check engine light is on and it is shaking real bad when driving it and when i stop at a red light it seems like it wants to stall out


P0305 is a # 5 cylinder misfire , do you know what that is ? Check engine light flashing indicates a severe misfire that can damage the catalytic converter . Don't drive this vehicle ,take it immediately to a qualified repair shop or the dealer .
A Ford P0171 is a LEAN code for cylinder bank 1, and P0174 is a LEAN code for cylinder bank 2. These codes commonly occur on many Ford vehicles, and are set when the powertrain control module (PCM) sees the air/fuel mixture is running too lean (too much air, not enough fuel).

Flashing check engine light CarMD

Oct 24, 2017 | 1998 Ford Mustang

1 Answer

I have a 2004 3.9L Mustang with the "check engine soon" light on. I read the codes and 0300, 0301, 0305 and 0316 were up, while the car was still driving fine. Soon, it started to lose strenght, I bar


Best to read the codes first---code p0300 refers to random multiple cyl-- misfire detected causes-- spark plugs---HT leads--ignition coils--wiring.
code p0301 refers tocylinder 1-- misfire detected causes ---engine mechanical fault---wiring---ignition /fuel system ---injector---ECT/Maf sensor(Mass air flow) ECM.
code p0305 refers to cylinder 5 misfire detected causes ---same as 0301
code p0316 refers to misfire detected during start up -first 1000 rpms---causes--- engine mechanical fault---wiring----ignition/fuel system---injector. I would run a fuel system pressure pressure test as the common causes here is the fuel/injectors

PLEASE RATE THIS REPLY FOR ACCURACY

Mar 24, 2013 | 2004 Ford Mustang

1 Answer

I have ford crown victoria 2004, engine is missing ,code is P316. Any solution?


P0316 FORD - Misfire Detected On Startup First 1000 Revolutions Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Engine fails to start
- Engine runs rough Possible causes - Crankshaft Position (CKP) sensor harness is open or shorted
- Crankshaft Position (CKP) sensor circuit poor electrical connection
- Faulty Crankshaft Position (CKP)
- Ignition System
- Fuel Injectors
- Running out of fuel
- Fuel Quality

Feb 16, 2012 | 2002 Ford F150 Regular Cab

1 Answer

Ford 2003 escape codes readed


Cauases or fault codes are not cut and dry, but here are the possible causes of codes P0316 and P0306 which are related codes.
P0316 - Engine Misfire Detected on Startup
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Engine fails to start
- Engine runs rough Possible causes - Crankshaft Position (CKP) sensor harness is open or shorted
- Crankshaft Position (CKP) sensor circuit poor electrical connection
- Faulty Crankshaft Position (CKP)
- Ignition System
- Fuel Injectors
- Running out of fuel
- Fuel Quality
- Faulty Engine Control Module (ECM) P0306 - Cylinder 6 Misfire Detected Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Lack/loss of power
- Hard start
- Engine hesitation
Possible causes - Faulty spark plug 6
- Faulty ignition coil 6
- Ignition coil 6 harness is open or shorted
- Ignition coil 6 poor electrical connection
- Clogged or faulty fuel injector 6
- Injector 6 harness is open or shorted
- Injector 6 poor electrical connection
- Improper spark plug 6
- Insufficient cylinder 6 compression
- Incorrect fuel pressure
- Intake air leak

Jan 17, 2012 | Cars & Trucks

1 Answer

My 2004 mustang gt service engine soon light started flashing for about a minute and went off also my car started


If your check engine light starts to flash that is telling you to shut it down so that you do not do any significant damage to the engine. I would recommend that you go to your local parts store or call a mobile tech out to read what codes are possibly stored in your cars computer and find out what is going on.

Jun 26, 2011 | 2004 Ford Mustang

1 Answer

When I start my 94 mustang gt the service engine soon light flashes twice. The car rev higher than normal as well (around 1500 rpm) and idles rough to start. After I drive it for a bit in runs better. ...


sounds like you have a code in the computer that needs to be checked out which will send you in the direction to diagnoise the problem.you could have a couple problems.it could be a tps sensor,vacume leak,injector problem,etc.

May 19, 2011 | 1994 Ford Mustang

1 Answer

Have misfire, code P0316, any ideals? 86,000 miles on


2004 Marauder and 2003-2004 Mustang vehicles built before 12/19/2004 equipped with 4.6L 4V/5.4 4V engine may exhibit a runs rough, lacks power, and engine misfire, prompted by a MIL light and DTC codes P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, and P0316.
ACTION
Diagnose engine for engine misfire concern. If diagnostics determine an engine misfire which is characterized by leakage through exhaust valve(s), only replace the affected cylinder head(s).
SERVICE PROCEDURE FOR VEHICLES WITH RUNS ROUGH/MISFIRE CONDITION:
1. Perform relative compression check on all cylinders. If abnormal, check cylinder leakage and actual compression for "low" cylinders refer to Workshop Manual (WSM), Section 303-00.
2. If leakage/compression check indicates a valve train concern, per valve train diagnostics in WSM, Section 303-00, replace cylinder head and cam assembly, pipe plugs and timing chain tensioner, per procedure outlined in WSM, Section 303-01.
3. If cylinder leakage and compression tests are inconclusive, perform misfire diagnostic, per TSB 05-22-8.

So

Feb 26, 2011 | 2004 Ford Freestar

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