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Misfires Runs fine until engine reaches 3,000 revs then misfires. New cylinder lined engine fitted in 2002 and mileage on new engine is 42,000

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  • mrjoehauser Jan 07, 2009

    I have been t-shooting the same issue. Now it is broke hard with cyl 1,3,5 misfires and catalytec failures. Used to run up to 3K rpm, then fall down. plugs changed just prior to breaking hard. Upper IMT function check good. Any ideas?

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I had the same problem on two cars and found the leads would break down under load changed the leads no more problem.

Posted on May 15, 2008

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Engine miss when cold, engine light on, new gas, air filter. fuel pump in tank. hot engine loght goes on off, when off at stop stalls out engine light off.


Diagnose Engine Misfire - Auto Diagnosis Repair Help

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Dec 16, 2015 | Cars & Trucks

1 Answer

What causes engine misfires to stay after new plugs and coil packs?


Try swapping the coil packs around - like swap #1 with #2, and swap #6 with #5, see if the misfires MOVE with the coil packs swapped to the new cylinders or if they stay with the cylinders. If they move with the coil packs, the new coil packs are bad. If they stay with the cylinders, there's a problem with those cylinders. You DID replace that camshaft sensor, right?

Have you checked your #1 and #6 injectors?

Aug 07, 2014 | BMW 528i Cars & Trucks

2 Answers

Cylinder 3 misfires


I would move no3 injector to another cylinder and see if the fault moved . If not the problem is in the injector wires or ECM plug If it moved I would consider a new injector .

Dec 29, 2013 | 2002 Ford Mustang

2 Answers

Engine missing


Then you went to a shop that doesn't have the
skills necessary to resolve much,cylinder misfires
in your case

You never need a MIL Lamp, to check for codes,cylinder
misfires & other data

Sep 01, 2013 | 2003 Ford Explorer

1 Answer

Po302 po303 po316 code


The Codes 302 & 303 are cylinder misfire codes,google them

Spark Plugs have nothing to do with misfires,it would be rare in
a life time if one ever failed to fire

Forget the 316 just misfires on start up

A repair shop would be your best choice without knowledge,
reference material & test equip

Ignition coil or vacuum leak problem

Feb 05, 2013 | 2002 Mercury Sable

1 Answer

RE: Johnny brown- 2003 Sebring multiple cylinder misfire 3.0 New distributor new crankshaft sensor new plugs new wires good compression injectors good... Installed new EGR started with cold engine and


ENGINE MISFIRE

There are few possibilities that can cause engine misfire issues. It can be issue with spark plugs or faulty spark plugs. Also get the compression test done for cylinders. If any of cylinder shows low compression then required, then that particular cylinder will cause misfire.

Also get obd codes scanned, the error code will let you know which cylinder is misfiring or all cylinders are misfiring.

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For your trouble shooting I suggest you to refer the help oinks below. It has step by step details for many engine misfire issues.

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Click the link below:-----


Ford Explorer Cylinder Misfire?

http://whoisbyme.blogspot.in/2012/06/ford-explorer-cylinder-misfire.html

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Engine Misfire codes on Chevrolet Malibu?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

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Cylinder 6 Misfire?

http://howtobyme.blogspot.com/2011/12/cylinder-6-misfire.html

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Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

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While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

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Ford Explorer 5.0L: Engine Miss?

http://whoisbyme.blogspot.in/2012/06/ford-explorer-50l-engine-miss.html

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Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

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Can cylinder misfire Damage the Catalytic converter?

http://schematicsdiagram.blogspot.in/2012/02/can-cylinder-misfire-damage-catalytic.html

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Car misfires and error code P0306 and P0303 is shown?

http://technoanswers.blogspot.com/2012/01/car-misfires-and-error-code-p0306-and.html

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Chevrolet K1500 No spark, random misfire

http://repairhelpcenter.blogspot.com/2012/11/chevrolet-k1500-no-sparkrandom-misfire.html

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2004 Ford F150: Engine Misfire and Lean Code?

http://whatisbyme.blogspot.in/2012/05/2004-ford-f150-engine-misfire-and-lean.html

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1995 Toyota LS: Misfire at idle or low RPM

http://whatisbyme.blogspot.in/2012/04/1995-toyota-ls-misfire-at-idle-or-low.html

--------------

Toyota Corolla: Random Misfire?

http://technoanswers.blogspot.in/2012/04/toyota-corolla-random-misfire.html

----------

2006 Ford Freestar: Misfire on Cylinder Number 2?

http://whatisbyme.blogspot.in/2012/06/2006-ford-freestar-misfire-on-cylinder.html

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This will help.

Thanks.

Dec 09, 2012 | Cars & Trucks

1 Answer

P38 misfires and pops when hot


it is possible that you have access carbon buildup around your valves or on top of the Pistons that gets hot and on cruise causes the engine to misfire.It is also possible that you have some water in the mix that is forced through under normal conditions that under cruise conditions is causing problems also.

Feb 19, 2012 | 1996 Land Rover Range Rover

1 Answer

Multiple misfires. cylinder 3,6 appear first idles fine. won't rev past 3200 rpms. plugs fine. wires fine. changed 1 coil 3 and 6.


Try shaking the ICM connector see if it effects engine operation if it does inspect for looseness and poor terminal contact,these have a know connection problem especially 1,3,6 connections these are known as (COP) coil on plug

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You have low fuel pressure, check fuel filter and fuel pump.

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well spend some change and have a simple tune-up.  Plugs and filters and readjust the idle.

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