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94 T-BIRD LX 4.6 V8 I KEEP LOSING SPARK ON CYLINDERS 2 AND 5 AND KEEP BLOWING THE IGNITION FUSE.. I FRIED ONE COIL PUT A NEW ONE IN AND IT RUNS FINE FOR ABOUT 10 MIN. THEN I LOSE CYLINDERS 2 AND 5 …

my 01 jeep grand cherokee laredo is misfiring.  My mechanic replaced the ignition coil and said it was fixed.  Next day, happened again.  Brought it back, he replaced something else, said it was fixed, next day, happened again.  Brought it to another mechanic, and it’s been there a  month and he cant figure out what’s wrong with it.  Any suggestions, or anyone had similiar problems and was and how was it fixed?  HEEEELP

IVE BROUGHT NEW SPARK PLUGS COIL PACK AND LEADS ALSO CHANGED MY AIR FLOW METER  AND ITS STILL MISS FIREING WHEN I REV IT  ITS LIKE BRAKEING GLASS IN THE EXHAUST AND A RUBBER SMELL

having trouble figuring what coil goes were if they got there own spots. troubleshooting misfire and need ignition coils order?

The other day I started my car and noticed a lot of exhaust was coming out of the muffler, so when I starte to drive the car wouldn’t go faster then 40k and the revs went up and the engine light started flashing !
We plugge in the code reader and said misfire cyl 3
We changed all the spark plugs and two were soaked with oil
Changed the coil pack an still does the same !
I just want to know what the problem is

2007 Endeavor LS AWD – 82k Miles

I recently had both check engine and tcl lights come on solid a day after a 65 mile trip through rain ice, and bad weather. Accompanying these lights on is a rough idle at low idling rpm’s and vehicle shaking at higher ones when I tried to drive it. There is 1/2 tank of 91 gas and the gas cap is locked tight. I checked the oil and it was fine, I added fuel injector cleaner along with dry gas and ran the vehicle about 15 miles. None of this seemed to help. I took the vehicle to Autozone and had them read the error code for me which was P0300. The autozone person further said it was a Cyl #4 misfire. I took the vehicle to a repair shop and they ran a diagnostic. They confirmed a cyl #4 misfire (P0304  I believe). They proceeded to change out the coil on cyl #4 and a new error code showed up identifying a misfire in cyl. #6. They checked all the plugs and wires and found no problems. There was no evidence of a manifold gasket leak either. The timing belt on the vehicle has not yet been changed. After this they stopped and said I should take it to a dealer who has better diagnostics to identify the problem since they didn’t have the ability to further investigate the computer diagnostics. They said it would require Mitsubishi to do so. They did not charge me. The vehicle is running considerably worse after their attempt. It barely idles, engine shakes, and seems like it is running on 2 cylinders – hardly any power.  I am concerned about what could be wrong. I have read a lot and seems like most of the usual suspects have been eliminated as the cause of the issue. Any help before I take this to a dealer would be greatly appreciated.

Recently fixed cylinder1 misfire. Still showing P0171 & P0174 codes.How do I fix this?

check engine light is on…the obdII says #5 cylinder misfire…i’ve done evrything….smoke test….changed the jet…new gasket on #5…new coil pack….even the ford dealership can’t figure out whats wrong. It skips for the first couple of minutes and then runs smooth. they could only get the check engine light off long enough to pass inspection….then right back on….what else could it be?

hello im getting a misfire on #4 it has gas spark compression new plugs good cam no airleaks what am i missing?

Just got a 99 Merc. C-280 it came with no manual, changed the spark plugs, to give it a tune up, it is still sluggish, got it checked, coil pack #2 bad, if I am looking down at the engine where would coil pack #2 be located, also could it be possible that if the codes were not properly cleared out, can the computer cause the same problem, and or if  the CEU is bad can it effect one or more coil packs, or would a DIO identify that the computer is bad.

Thanks to all who can help with this….