PO308 code misfire on #8 cylinder.

5

Asked by Feb 08, 2015 at 10:11 PM about the 1999 Dodge Dakota 2 Dr SLT 4WD Extended Cab SB

Question type: Maintenance & Repair

I've read other posts and changed the plugs, wires, distributer cap and rotor. I even made sure the wires were positioned as to keep from wear and tear. I erased the code and started new . Shortly after running the truck a few miles, I checked again and there was the code once again..HELP! What am I missing?

4 Answers

90,315

Test the compression, if you have too much variance between cylinders then it might be time for a valve job, if compression is good then I would at the injector for that cylinder, it could be partially plugged in the needle or the internal screen is crudded up. When was your last good injector cleaning?

1 out of 1 people think this is helpful.
5

I just got the truck Friday so I'm still working the bugs out. What do I need do to clean the injector properly. Also, I was reading more on the forums about sparkplugs. It had Bosh Plats in it and I changed them out to Autolite Plats. Should I go with the copper plugs for my 318 5.2l magnum?

90,315

In all my years I have found that Champions work best in Chrysler products, and use at least platinum plugs. As far as injector cleaning with your problem I would suggest having it done professionally first then follow up with a good pour in the tank like seafoam or techron.

1 out of 1 people think this is helpful.
5

Thanx for the advice.

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