Question about 2001 Dodge Ram 1500 Truck 2WD

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2001 ram 1500:3.9l v6 2wd. I have trouble codes p0300:p0303:p0304 coming up how do I fix them and would they cause my truck to bog down around 50 mph? It runs good and strong under 50 but slow to pickup after 50. Thanks.

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Code 300 random cylinder misfire, code 303 cylinder 3 misfire detected code 304 cylinder 4 misfire detected. check the spark plug wires 3 and 4 inline tester for constant fire. also check the spark plugs , clean and reset the gap if necessary. if all is good check the coil terminals for corrosion. if this is all correct then check the coil with a ohm meter for primary resistance by attaching the leads to the positive and negative terminals. then check the secondary resistance by hooking one of the ohmmeter leads to the center terminal and the other lead to one of the outer terminals the resistance for primary test should be 0.95 to 1.20 ohms and the resistance on the secondary side should be 11,300 to13,300 ohms. hope this will help!!!

Posted on Apr 28, 2010

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The P1399 random misfire along with one or more of these codes: P0301, P0302, P0303, P0304 -- indicates a problem with the valves. The B20 engines in the 1997-2001 CR-Vs are known to have problems with valves tightening and then 'burning'.

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