Posted on Apr 03, 2009

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Put a checker on it and got a p03000 random multiple cyl misfire

Put a code reader on and it shows P0300 code witch is randon multiple cylider misfire what is that.and can I fix it without high priced mechanics, their was a time when I could fix any of them. Before the "Check Engine" light came on I was having issues... Today (02APR09), when I was returning home from work it lit up. The "issue" I discovered before-hand became even worse when it did actually light up...
After I got home, I used our "newly-acquired" CEN-TECH: CAN OBDII Code Reader #98568.
To me it felt like, when I used to drive a Manual Transmission vehicle, I was attempting to start off in second gear as opposed to starting in first.
Anyways, I had already assumed it was a transmission problem. This afternoon when I had plugged the code reader in it read:
"P03000 $10 1/1
Random/Multiple
Cylinder Misfire
Determined"
The users manual could only tell me less than I already knew. P=Powertrain, "PO"=Code type generic (SAE) 3=Ignition System or Engine Misfire, 00="Identifying specific malfunctioning section of the systems". "00" and the "$10"/"1/1" are where I'm left hanging... I have no clue as to where to go from here and I hope to find some suggestions so I can fix the truck.

1 Answer

Joe Lamb

Master 463 Answers
Posted on Apr 03, 2009

Joe Lamb

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Joined: Mar 27, 2009

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Whens the last time you gave it a tune up???Check the distributor.It may have water or moisture in it or the rotor may have a hole burn't in it..Check all wires..If all that stuff is good look around for a vacuum leak.Maybe a hose came of the air cleaner or one off the duck work going to the intake..If that stuff is good then try giving it a fuel pressure test.That should help you with the problem..Have a great night..

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Anonymous

674 Answers
Posted on Oct 27, 2008

SOURCE: put a checker on it and got a p03000 random multiple cyl misfire

you are getting a misfire and 99% of the time you need a tune up
plugs and wires and clean your throttlebody

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Hi there:A P0300 diagnostic code indicates a random or multiple misfire. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. A P0302 code, for example, would tell you cylinder number two is misfiring. Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why.

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About your possible solutions, if there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

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