Code po300 chevy silverado




Code po300 chevy silverado

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  • Chevy Silverado P OBDII Code Diagnosis | Drivetrain Resource
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  • So this engine code article applies to Chevrolet, Ford, Nissan, Toyota, Dodge, Honda, GMC, etc. silverado 4x4 l engine codes p p

    P is one of the most common OBDII codes that occurs in the Chevy Silverado vehicles. It stands for: P Random Multiple Misfire.

    Repair Information for P Chevrolet code. Chevrolet Silverado, Suburban, Tahoe Chevrolet Factory Service Bulletin OBDII Code P

    Code po300 chevy silverado

    Code po300 chevy silverado

    If these engine codes are present as well the you should diagnose those first as they are probably causing this trouble code. I don't see that as happening, though, mainly because the amount of vacuum loss needed to affect the regulator would have to be substantial, which affect how the entire engine would be running. GM has issued a service bulletin PIPA to address a situation where you have a check engine light and retrieve trouble codes relating to a misfire. Ask a Car Question.

    Code po300 chevy silverado

    Code po300 chevy silverado

    Code po300 chevy silverado

    Code po300 chevy silverado

    Code po300 chevy silverado

    P – Meaning, Causes, Symptoms, & Fixes – FIXD Automotive

    By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Yesterday on the way to work my Chevrolet Silverado 4WD with the 4. I had experienced a slightly rough idle previously nothing serious and had been unable to track it down. I replaced the PCV valve as a course of standard maintenance and it seemed to help get the idle back down, but still slightly rough. I also replaced the spark plugs and plug wires, and replaced the alternator on warranty for an unrelated issue.

    After I got the check engine light, I started doing some more diagnosis with a bluetooth-OBDII reader which is when I found that I had misfires only on cylinders 2, 5, 6, and 8. Since it was on separate banks, I could find no commonality of items to replace, so I tried the following things. So I guess I'm stuck and about ready to give up on this one and take it to my mechanic, but I was wondering if there was something else I should try or if anyone has any thoughts.

    Code po300 chevy silverado

    First, double check the entire intake tract for vacuum leaks. Anyplace you could have unmetered air air entering after the MAF. You'll also want to pull the intake tube and ensure there aren't any cracks in it as well. Make sure all of your clamps are in good working order and are sealing things. Second, and a lot tougher to diagnose, you need to check the ground situation of the engine. Make sure all of your ground straps are in good working order and well connected.

    There are plenty of ground straps, so search your engine bay over and see what's going on. You'll also need to ohm out the grounds going to the injectors and coil packs. Check to ensure all of the grounds are good.

    Code po300 chevy silverado

    Third, it seems to me the crankshaft position sensor or the cam position sensor may be having issues. I'm unsure how to test these to see if they are the issue, so don't go jumping on these first. I know a stealership could scan these for you, but don't get caught up in the R-n-R game Remove and Replace it gets expensive fast. I found out that the distributors on the vortecs wear out and cause these problems, some say only , miles.

    Mine is ,, but a new one fixed it. The OEM are plastic and the shaft starts to wobble as they wear and age and produce misfires.. I first had changed everything from sensors to filters and injectors, but it was the distributor. To set the new one on a vortec you have to use a scan tool, you are really setting the cam sensor since the engine is self timing. Check the spider injection assembly I had multiple cracked fuel lines.

    I had the same problem on my 99 found out my wife had been putting E10 in the tank had to replace my fuel filter and intake gasket along with coil gasket.

    Code po300 chevy silverado

    Turns out my 99 don't like that fake fuel E Thank you for your interest in this question. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site the association bonus does not count.

    Would you like to answer one of these unanswered questions instead? Home Questions Tags Users Unanswered. StephenH StephenH 1 5 Did intake gasket fix your problem. Im having the same issues with my 05 Chevy with 4. I have done vac check comp.

    01 chevy silverado P0300 problemas de combustion sin encontrar evidencias de la causa parte 1



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