Question about 2003 Ford Explorer

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4.0 2003 explorer codes p0300 ,p0301 ,p0302 ,p0303

Running on 3 cylenders

Posted by Anonymous on

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  • 2 Answers

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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

  • 432 Answers

SOURCE: Codes p0300,p0302 and p0303 are coming up.Is it

Good Evening, I am sorry to hear you are having problems. Your codes in order are a random cylinder misfire, a clyinder 2 misfire and a cylinder 3 misfire. Which engine do you have in it? I would consider checking the plugs and wires if you have never had them changed. I have seen a lot of places sell a car and not change them or check them since it is running good at the time, and it seems in colder weather that plugs that arent quite up to par just wear out to the point of missing. Check those first and let me know how it goes.

Thanks

Posted on Feb 08, 2011

Testimonial: "Thank you. I will replace the plugs first and if necessary, the plug wires. "

  • 22 Answers

SOURCE: enigine light is on, I have replaced the spark

try replacing the DPFE, go to the ford dealer and take them your VIN and ask them for a DPFE, your egr valve is sticking open due to the failure of the DPFE and causing multiple misfires in your engine

Posted on Oct 27, 2011

SOURCE: I have a 2003 Ford Explorer that is misfiring with a code of p0300, p0303 and p0316

The 300 is random misfires & the 316 is misfires on the first
1000 revolutions,such as when the motor is first started

Your only working on cylinder #3 the PO303

If you have individual cop coils,replace that one

If you have a motor with a module for several cyclinders,
then you may be best to have a shop diagnose,so as
not to waste money on the wrong parts

Posted on Nov 18, 2012

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


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Codes:p1346/p1349/p1354/p0446/p0300/p0301/p0303/p0305/p0307/ p0430/car runs rough when idling/lexus gs 400 1998


P0301 Cylinder No. 1 Misfire Detected
P0302 Cylinder No. 2 Misfire Detected
P0303 Cylinder No. 3 Misfire Detected
P0304 Cylinder No. 4 Misfire Detected
P0305 Cylinder No. 5 Misfire Detected
P0306 Cylinder No. 6 Misfire Detected
P1346 Variable Valve Timing (VVT) Circuit Range/Performance Fault
P1349 Variable Valve Timing (VVT) System Malfunction
P0330 Knock Sensor
P0446 EVAP Vent Control Fault
P0430 Catalyst System

Stop driving immediately.....

You defiantly skipped on your timing........

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