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Misfire on number 6 and number 3 cylinders on a 2008 caravan 3.3

Changed coil pack checked compresion changed injectors .changed cam sensor .changed computer !! im loosing my mind can someone help me . I have never changed this many things and not seen results..

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  • tony varano Dec 30, 2012

    I also changed the plug wires for good measure .I lifted up fuel rail and cranked engine all 6 injectors are working any advice out there?I was thinking maybe the cam gear came apart and its not picking it up properly?

  • tony varano Dec 30, 2012

    I have found a vacuum leak i keep u posted after i find where it is ..

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I HAVE A 96 DODGE CARAVAN WITH A 3.8L ENGINE..I HAD SIMILAR PROBLEM AND IT WAS THE UPPER INTAKE PLENUM GASKET HAD PIECE MISSING OUT OF IT..MISSING ON #5 CYLINDER AS WELL..GASKET WAS ONLY ABOUT 10 BUCKS AND I REPLACED IT IN ABOUT 30 MINUTES..TOOK ALL BOLTS OUT OF MANIFOLD AND JUST LIFTED IT UP HIGH ENOUGH TO GET OLD GASKET OUT..MIND YOU..I'M AN EXPERIENCED CHRYSLER TECH AND DO A LOT OF ENGINE WORK..SQUIRT SOME BRAKE CLEANER AROUND UPPER INTAKE AND SEE IF ENGINE SMOOTHES OUT..LET ME KNOW WHAT HAPPENS

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Posted on Dec 19, 2009

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SOURCE: misfire on number 6 cylinder have replaced

If you changed and the injector and the coil and does not work change the spark that cylinder and see if comes to that coil voltage (positive and negative) and is less negative than if the PCM does not work that coil. Thanks good luck and opinions please

Posted on Jan 29, 2010

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1 Answer

Have a misfire in cylinder 6 changed all coil packs all spark plugs stills says cylinder 6 misfire


A misfire could be caused by almost anything, spark--fuel--compression. Did you check for spark at number 6? All electrical components have voltage and ground, if problem on wiring circuit, replacing the component won't fix it.
Also, check for fuel injector pulse--proper fuel pressure and cylinder compression.
I don't know year--make--model, it didn't post for some reason?

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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?

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My 2008 saturn astra has a misfire on cill number 2


Mine was misfiring on #4. Had to replace entire coil pack. It was an expensive fix.... part alone is almost 400.00. easy to replace though.

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2001 dodge grand caravan sport 3 code 3.3 liter flex fuel random cylinder misfire along with 1 2 5 6 cylinder misfires. scan tools are unable to communicate with computer but check engine light will come...


Dirty fuel injectors. Computer will show misfire on the cylinders that are malfunctioning. If injector cleaner in tank won't clean them, pull them all out and have a professional take them apart and cleaned. Each injector has a screen in it that can get plugged up. Think about Bro, all other stuff has been renewed.

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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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I have a 2002 TrailBlazer with the straight 6,diognostic check said #3 cylinder was dead or misfiring, also map sensor showed up. #3 cylinder was misfiring, so to test the coil pack I swapped #3 coil pack...


did you replace only one spark plug? that can cause issues because of differences in resistances between cylinders. also, did the map code stay off after replacing
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1 Answer

I have 1996 Dodge Gran Caravan, and it gives me these codes: 27 and 43, what do they mean??


CODE 27 - Injector Control Circuit, output driver does not respond properly to the control signal

Code 27 MIL light options: OBDII
P0201 - Injector #1 Control Circuit
P0202 - Injector #2 Control Circuit
P0203 - Injector #3 Control Circuit
P0204 - Injector #4 Control Circuit
P0205 - Injector #5 Control Circuit
P0206 - Injector #6 Control Circuit

CODE 43 - Cylinder Misfire, or Ignition Primary Circuit

CODE $# MIL options: OBDII
P0300 - Multiple Cylinder Misfire
P0301 - Cylinder #1 Misfire
P0302 - Cylinder #2 Misfire
P0303 - Cylinder #3 Misfire
P0304 - Cylinder #4 Misfire
P0305 - Cylinder #5 Misfire
P0306 - Cylinder #6 Misfire
P0351 - Ignition Coil #1 Primary Circuit
P0352 - Ignition Coil #2 Primary Circuit
P0353 - Ignition Coil #3 Primary Circuit

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1 Answer

Engine not hitting on two cylinders after replacing cam sensor


If you have a coil pack with 6 cyl. 3 coils in one One coil for 2 cylinders One of the coils in the pack has gone bad. To verify this check which cyliders are missing and see if they match any pair on the coil pack. If so the coil should be replaced. Hope this helped. Moe

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95 maxima rough idle


The injector could definitely trigger a misfire code, but you also mentioned that you had a mass airflow sensor code , that code code be responsible for te sluggish moment of the vehicle and rpm going up and down. However if you have a misfire onCyl#6 and the coil and the plug is good the ONLY other thing to cause a mis-fire would be the injector. To check the injector get a NOID light, you can get one at almost any auto-parts place. To use unplug injector plug from the bad injector and connect it to NOID light the light should have a steady PULSE/ligt flickering. If light flickers fine then injector is bad and will need to be replaced. If light doesn't flicker or flickers intermittently then you may have a bad wiring to that injector. Check if wiring is good, then you may have a bad cam sensor or sensor gear. Good Luck and contact if you need more help. Thanks for using FIX YA

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