P0300 chrysler

Yet Another P thread. Yes, random misfire. I know. Only I didn't know it.

Thread Tools. Turned key to restart car and it restarted right away. Check engine light constant on for a couple of minutes, then flashing for a couple of minutes, then alternating between constant on and flashing every couple of minutes. Did not stall again. Checked codes, and P is found. Changed spark plugs NGK properly gapped , coils, crank position sensor genuine MOPAR , fuel pump module including fuel filter, checked all wires and hoses everything looks good.

P0300 chrysler

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Finally took vehicle to dealer to have engine scanned. Long list of possible problems, bad plugs, ignition harness, possible bent valve or push rod, etc. Expensive and no real solution. Had previously had heads off to replace leaking head gasket, resurfaced valves and checked push rods and valves, so knew they were good. Replaced MAP, no change. Replaced plugs and wiring harness, no change, checked fuel pressure, good. Finally after much scratching of both ends, bit bullet and decided to change MDS solenoids. Not to bad of a job, have to remove intake manifold, then solenoids are easily accessible. Strike each solenoid several times with a rubber mallet to break O-rings loose. Three of four came out easily, fourth broke and left part of lower plunger in manifold. Had to fish it out with a piece of stiff wire with the end bent to hook it.

Had previously had heads off to replace leaking head gasket, resurfaced valves and checked push rods and valves, so knew they were good, p0300 chrysler.

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P is often accompanied by cylinder-specific misfire codes PX, where the X indicates the cylinder number that is misfiring. If you have P and a cylinder-specific misfire, the cylinder indicated by the specific codes would be where to start looking for your problem. Worn spark plugs, coil packs, or plug wires are the most common cause of P Random, Multiple Cylinder Misfire Detected. P is a random misfire code, which means that it is not going to tell you which cylinder is causing the misfire. Since something is causing cylinders to misfire randomly, figuring out the cause is less cut and dry than a cylinder-specific misfire code.

P0300 chrysler

P is a serious engine fault that means random multiple misfires have been detected. Find out how to fix this code today. Advertiser Disclosure.

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Running low or out of gas will cause low pressure hence the code. Fingers crossed. Strange I run out of gas with 40 DTE. Recommended Communities. I've run it down to 0 DTE before. Stop guessing and get some data. Three of four came out easily, fourth broke and left part of lower plunger in manifold. Might be something loose after you changed the plugs. Just the P I'll throw in some fuel drier soon, too. Related Topics. What is the next thing to check to solve the P code problem? It could be that the times I was trying to start it without any gas in it, and the rough start as it finally did get gas, was enough to trip the CEL and P code. Or what would you do? Car runs smooth as butter so i havent gotten the other 3 oems replaced.

Home » OBD Codes. There could be many different things causing the car engine to misfire, and in this article, you will find everything you need to know about this code. The code P indicates there are repetitive misfires on one or more cylinders in your car.

Should I do something what? Log in. Every time this happens it is when she is city driving. Explore Our Forums. Random Misfire, P may occur when fuel pressure is low or erratic. It would also cause a misfire if the gas was diluted. Turned key to restart car and it restarted right away. I got the flashing CEL, so I turned off the engine immediately although it seemed to be running fine. Pull the negative battery cable for 5 minutes to reset the computer and see if the CEL comes back on? No codes. Check the basics, fuel, spark, air. I opine I had one or more failing intermittently and causing the rough running, stumbling at idle and occasional dying. Quote message in reply? Compounding the problem, filling the tank from a gas can in the dark, I'd left the gas cap off.