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2005impala has steady misfire, changed plugs wires and injecters. Still misfires

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How about coils,module.tune up.

Posted on Apr 24, 2013


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1991 tracker with a 1.6. has a miss when running. when up to speed and holding at a steady speed miss gets worse. drove for about an hour and started cutting out very bad lost speed,power. converter red...

Do a compression test of the engine. See if your valves are seating properly is what you'd be looking for in checking for low compression. It could be causing the miss. When you changed plugs, did any one plug stand out as being different in color or texture at its base? The constant miss might put black sooty deposits on the spark plug. Course you'd have to remember which cylinder that plug came from to help you locate the miss. I'm assuming you have throttle body injection?

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2002 grand prix 3.1 code says number 6 cylinder misfire detetected. I changed the coil pack spark plug and wire and alSo changed the board tat the coil sets on. Computer stillsays #6 misfire detected. The...

It's a possibility the injector is the problem. It may not have the psi it needs, therefore the cylinder could be misfiring, or the injector could be letting too much fuel in. Before I change the injector, I would try to have someone to clean the injection system to see how it works. The cleaning around in South Carolina is $99-$149 depending on where you go.

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My S-10 keeps giving a P0300 dtc. Can't figure out what is setting this code. Usually misfires at idle. Any suggestions?

if u change plug wires ,coils ,plugs and still having problems check the injecter with a pulse light the one that dont pulse the pcm is bad are broke wire if all of them are pulseing then change the injecter.had the same problem on a 2000 s10 2.2

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2002 mercury sable. misfiring. taken it to get looked at. cant find why its misfiring. check engine light is on.

first take it to have the codes extracted then post them and I may have an idea as to what may be wrong with it. I know autozone will extract the code for free some other shops may as well.

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Engine light on

They are still looking for a cause because it isnt misfiring right now or because they cant find the cause of the stored misfire codes ?
If it is misfiring right now and they cant figure it out then perhaps you should find new mechanics !
I have seen a lot of bad coils on the PT.
Misfire is usually caused by spark plug wires first, spark plugs 2nd, and coil third.
If it isnt misfiring now, spray down the wires with water. If it misfires after that replace the spark plug wires and spark plugs and try again.
If it still misfires then the problem will likely be the coil.

Oct 03, 2009 | 2005 Chrysler PT Cruiser

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Misfire on cyclinder

I would check the fuel injector on number 2 cylinder. If the injecter is dirty or not functioning properly it may give you the symptom of an ignition misfire.

Aug 13, 2009 | 2000 GMC New Sierra 1500

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Do a compression test to see if the PSI hold steady. If fluxuating the valves can be bad or a host of other things internally

May 26, 2009 | 1998 Chevrolet Camaro

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