The engine stumble and have a severe misfire at cold.i have 6 cyl misfire ,cmp , ckp ,and random misfire code.i change....6 spark plug,all wire,cap,rotor,coil,tps,ckp sensor,cmp sensor and still have the same probleme.i change my catalytic converter 2 times.my rpm gage go crazy and pass to 7000 rpm in second whitout engine going up in rpm.the engine does not want to start because the engine flood.i put near 2500$ in repair to fix the probleme and went to several repair location,no one find the probleme!
My 2001 Dakota now works fine, I took it to a good reliable shop after much frustration. The problem was the crank position sensor in combination with an bad oxygen sensor. This was a very unusual problem with no consistency therefore hard to diagnose. Crank sensor $190.00 cdn oxygen sensor $130.00 cdn $300.00 in troubshooting, repair and diagnostics. Repaired by Gerald at AutoPro in Corner Brook, Newfoundland. Thanks Gerald
Check your fuel filter/pump in the gas tank completely disassemble it and look for a rubber plug in side the disc in the plastic housing you will have to remove the four screws on the side and lift out the disc and you willl probably see a rubber plug halfway sucked into its orafice, reseat it or replace it and then reinstall everything the same way you dissasebled it, fill the tank with high octane gas and a bottle of stp problem solved. we hope! Tony ASE certified mechanic on vacation.
Noelonot it sounds like your plug gaps are uneven.
veilletcarli you need to be looking for a primary power wire under the bonnet thats shorting to earth,ie battery lead on starter or battery terminal or back of alternator
it at the # cylinder
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I just purchased a used Dodge Dakota 4x4, V6, 5spd manual. When I test drove it the truck was fine, I ran it through the rpm range on the highway and off road without any problems. When I picked it up it was a wet day and it had a sloght stumble on in a while. When I checked under the hood in the dark the arcing could be seen so I repalced the wires, cap, rotor, plugs. The arcing problem was solved, but I still have an intermittent mis fire at the beginning of the day when the truck is first started and then it goes away. If the truck sits for a period of time and then is started the problem is there and clears shortly. This is a real pain in the ****. The truck falls on its face at 3000 rpm due to a misfire of sorts, I'm going to try the easy fix with fuel injector cleaner first, it worked for 1 poster.
I also have this as reported by Neolonot "intermittent mis fire at the beginning of the day when the truck is first started and then it goes away. If the truck sits for a period of time and then is started the problem is there and clears shortly. The truck falls on its face at 3000 rpm due to a misfire of sorts"". I went to a reputable garage, they thought it was a tuneup issue for motor with 140k mi., never been tuned. After the T.U. they spent 3 days testing every thing possible, injector cleaning too, couldn't find the cause. I know they put serious effort into trying to find the problem (at no charge). Finally conceeded they couldn't find/fix it. Suggested I take it to a dealer since a TSB report suggested the computor might have a glitch occuring. Dealer might be able to do some sort of reboot on it.
2001Dodge Dakota missfires , have installed plugs, cap, rotor,and wires .Can it be the crank sensor.
George M.
2001 3.9 dakota has for the past 3 years, intermitently will lose power, completley. If I floor the gas it will start to back fire and then go but as soon as i back off of the gas it will lose power again and start to backfire. The check engine light will come on also. It lasts for as little as a minute to 3 to 4 minutes then it will clear up. Hot, cold, wet, dry. No pattern. Scanned comes up with misfires on different cylndrs. No pattern. Tune ups don't help. I was thinking a bout the catalytic converter but not sure where to go next. Gas milage suffers from this malfunction.
misfires , ignition ciol #6 doesn't get no spark, engine noise that wont go awayh
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