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My 1997 camry v6 misfires badly ,intermittently, shows code reading cyl 1 3 5 misfiring ,installed new plugs ,wires and 1 new coil pack alternated in all 3 places.

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Posted on Jan 02, 2017

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SOURCE: 1997 dodge ram 1500 v6,i have a misfire,ive changed plugs,wires,distributor cap,rotor cap,fuel pump,rollover valve,coil,still has a miss

you can try changing the ignition coil, I own a 97 Dodge 1500 and mine did the same and thats what i had to do.

Posted on Oct 08, 2008

  • 36 Answers

SOURCE: Random Misfire on 2 & 3

I had a problem with a chevy with random misffires on all cylinders. It was the computer. Fords have very few problems with there computers. Does the check engine come on? Maybe have it scanned. 

Posted on Dec 12, 2008

  • 1 Answer

SOURCE: 1997 ford f150 cyliner 7 misfire

sme problem had to have it put on computer and codes reset

Posted on Feb 05, 2009

chuck943
  • 783 Answers

SOURCE: engine code p0307 cylinder #7 misfire

It could be carbon deposits on valve seats keeping valves from totally closing. You can try getting you a can of motorcraft PM3 top end engine cleaner and get engine up to operating temp then remove one of the small vacuum lines from the intake and draw the contents of the can slowly into the engine.After you have drawn in the contents shut engine off and let it soak for about 45 minutes then crank it back up and let it run until it clears. Now it will smoke like a forrest fire while you are doing this so don't be alarmed,just tell the neighbors you are spraying for mosqitos.This may cure the problem. If not you may be looking at a valve job.
This can be verified with a compression test if this is what is causing it.

Posted on Feb 05, 2009

  • 8 Answers

SOURCE: Intermittent Misfire on cyl #4 1997 Buick Lesabre

How's your coolant level? The intake manifolds on the 3.8L engines are prone to breakage at various locations causing coolant leaks into the crankcase and vacuum leaks on intake ports.Removal of the upper intake manifold will be necessary for inspection. Also, check for vacuum leaks at various locations on the outside of the intake manifold using WD-40 or brakeclean/carburetor cleaner sprayed hoses, non-electrical components, at the base of the manifold etc. As for a faulty injector, not likely but if you suspect one you can always swap the suspect injector with another on the engine and see if the misfire follows the injector. Just be sure to relieve the fuel pressure before servicing. Hope this helps.

Posted on Feb 10, 2009

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1 Answer

Both coils do not fire on 1 and 4. Will start but only running on 2 cylinders. Could both coils be bad or should I look elsewhere?


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Jan 31, 2016 | Cars & Trucks

1 Answer

2004 Sorento began with code P0305, cyl #5 misfire. Inspected and replaced plugs, wires, and coil pack on cyl #2. Repair shop told me cyl #5 injector bad so they replaced. Still has misfire.I suggeste


If you had code P0305, I don't know why they would have done anything to the #2 cylinder but if they have already replaced the plugs, wires and injector; here are a few more items to check:
1) Check connections from ECM. Look for any corrosions or bent/broken pins.
2) Check the fuel line pressure
3) Check the engine compression
4) And if the above are good, then you will probably have a defective ECM

Nov 28, 2014 | Cars & Trucks

1 Answer

Number five plug not firing


I'm assuming this is a DIS(distibutorless ignition system).If it is,the most common cause is a defective coil pack.Each coil will fire a pair of cylinders together on 4 and 6 cylinder engines(one "waste" spark,one to ignite the mixture).Try swapping the wires at the coil pack to see if the misfire follows the coil tower,or the same cylinder misfires(keep in mind that a check engine light means you will have to clear the code to get the computer to feed that cylinder fuel before you start it up again).If the other cyl on the pack now misfires(i believe 1+5 are on the same pack on a Ford engine),then the coil is bad(spark is "leaking"to ground).If the same cyl still misfires,try swapping a wire+plug from another cylinder.

Mar 14, 2012 | 1996 Mercury Cougar XR7

1 Answer

Code po300


Code 300 is a "random misfire"
It could be caused by a bad spark plug, plug wires or coil pack (there are 3 pack on the V6)
On a V6, there is usually there is another code like 301, 302, 303. These tell you which coil pack may be causing the problem.
J

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Mar 03, 2011 | 1997 Toyota Camry

1 Answer

2002 toyota tacoma v6 4x4. I had a multipel misfire code and a misfire code on cyl 3&6. I changed the plugs and ignition coil for cyl 3&6. cleared the codes but still having problems with...


I was having the same problem changed plugs, plug wires, coil packs, cat converter and had injectors flushed....cost quite a bit and nothing fixed the problem. Over 1000.00 spent before changing the injectors and this fixed the problem perfect. My truck now runs like new and I hope to get another 185,000 miles out of it......have the injectors checked and use "seafoam"....good luck

Feb 11, 2011 | 2002 Toyota Tacoma

2 Answers

Hello I have a1997 xk8 runs great but my check eng. light came on and the code that it read was a misfire code were do I start troubleshooting.


If it was a specific misfire code go to that cylinder and check the following: plug, wire, and coil, if it is a random misfire code, start by checking your spark plugs(including the gap), plug wires, and coil packs.

Sep 24, 2010 | 1997 Jaguar XK8

2 Answers

Why is my 1997 expedition showing a misfire on number 2 cylinder OBD code PO302. Also I am getting code readings PO174 andPO171 system to lean on Bank 1and 2


PO302 is being a misfire, could mean the plug is bad or the coil is bad for that cylinder. Which can give you the misfire reading and the system to lean codes. Check the #2 coil for firing.

Jan 28, 2010 | 1997 Ford Expedition

1 Answer

I have a 1997 ford taurus 6 cylinder that has a ''misfire'' diagnostics reading. It says cylinder six. I have changed all the spark plugs and wires and reset the code, the check engine light came back on....


Vacuum lines will not cause a specific cyl misfire. You may have a bad coil pack, or bad injector. You will need to make sure you have spark at the specific cyl listed for the misfire, and can test to see if you have injector pulse using a noid lite. Also, and good scan tool can show you live data, and allow you to watch the components operation, and give you a good starting point to determine the miss.

Nov 16, 2009 | 1997 Ford Taurus

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