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Mis fire in cylinder 6 check eng. light is on and running sluggish

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Pull trouble code and start from there you can go to an auto parts for a free tcd. have to know the code to help. thanks,

Posted on Sep 11, 2010


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2006 Ford Explorer P0306 code. I had all spark plugs replaced wires, water pump and radiator. small mis fire not that bad, check engine light on. what else could it be?

Run a compression test on it starting with #6 cylinder and those adjacent to it. You may have a leak in the head gasket due to the overheat.

Feb 12, 2018 | Cars & Trucks

2 Answers

We did a tune up on the 1993 Lumina 3.1 we bought 10 days ago, sine then , the tranny has been slipping and been very sluggish coming off the line, whereas before it was running well.

From your description...recheck ALL of the vacumn connections...Did your tune-up consist of plugs and wires? Also, it is common to accidently crack (white porcelin) the spark plug when re-tightening...this usually causes a mis-fire and rough idle too...Last check would be to recheck the plug wire firing order...The #1 cylinder on your 3.1 V-6 is on the front left...your parts store can help you with the correct firing order to trace...These have been very good cars and motors...Hope this helps.

Feb 21, 2011 | 1993 Chevrolet Lumina

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I have a '03 Toyota Celica GT-S with a annoying mis-fire. Started small by replacing all spark plugs - nothing. Replaced the MAF sensor - nothing. Took it to a authorized toyota shop & checked...

Replaced the MAF sensor - nothing. Took it to a authorized toyota shop & checked compression which check out good and put the computer on. Computer read mis-fire on cylinder 1, and then multiple misfire (like it would jump around). We went ahead and replaced the fuel injector on cylnder 1 - did not solve problem as when we hook the computer up, misfire seemed tp stay at idle and seem better when running high RMP, but check engine light is on as it never went away. Went ahead and replaced the coil pack to cylinder 1 - nothing. what am i missing?

Feb 06, 2011 | 2003 Toyota Celica

1 Answer

Check Engine Light on Yr2001 Ford Escape V-6 2wd. Code says: Misfire on cylinder #5. Dealer said compression is low in cylinder #5. This Escape needs to pass smog. What can we do?

If the engine has a P0305 DTC (Data Trouble Code) for a "cylinder 5 mis-fire detected", then the first thing to do is to do a compression test to determine if the mis-fire is actually being caused by a mechanical problem, or an electronic problem.

If the engine really does have low compression on the #5 cylinder then that is caused by a mechanical mis-fire and nothing electronic will repair it, and the most common causes for a mechanical mis-fire would be a burnt or bent intake or exhaust valve, a warped cylinder head or damaged head gasket, or a damaged piston. You can call around and find a repair shop that will do a "compression leak down test" if you want to know exactly what is causing the compression leak without any dis-assembly to the engine.

May 25, 2010 | 2004 Ford Freestar

1 Answer

Cylinder 1 mis fire on with 4 l

You could try an additive to go in your fueltank, in England its called Redex or STP, that may help as they are designed to brake down the carbon build up

Jan 01, 2010 | 1998 Jeep Grand Cherokee

1 Answer

2006 Envoy Denali: nunmber 6 cylinder is not firing

yes repace plug wire and recheck still has mis replace coil pack.I hope this helps you?

Oct 03, 2009 | 2006 GMC Envoy Denali

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Every time i hit brakes my 98 durango cuts off i replaced alot it says mis firing on cylinder 6 please help been working on it for months trying to find prob

At night, open your hood and start the engine. No flashlight and disconnect the eng. compsrtment light Then scrutize everything from #6 to the coil, distributor and all plug wires. Pay close attention for arcing or crossfiring. It's easy yop see if dark enough and can also be heard as a ticking or snapping depending on intensity. Worn plugs encourage croass firing or arcing.Arcing is permitted when wires cross each other and are in contact, as well as aged insulation.Wires(plug) can run parralel but sjould not cross each other. Look and listen closly for any kind of light show. Good Luck

Jul 20, 2009 | 1998 Dodge Durango

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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

Jan 13, 2009 | 1994 Nissan Maxima

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