My 2001 chevy silverado is running rough .I have no power and it pings when i give it gas and it will not move out of its way.I changed the plugs and fuel filter and air cleaner .I put in 94 octane gas and STP injecter cleaner . NO power? thanks Brian DE.
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Robert, have vehicle scanned for diagnostic codes. Check for vacuum leaks and if you have not done recently give vehicle a complete tune up cap,rottor,wires,plugs,filter's,etc, including injector/throttle body cleaning. Check the attached links,instruction and guides, Good luck
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Have you changed plugs and plug wires lately. Sounds like misfire, possible ! Should also check fuel pressure , plugged fuel filter or weak fuel pump ! Mass air flow sensor dirty, or map sensor .What engine do you have and does yours have How to replace the spider injector on Cheyv motor 4 3 or 5 7 liter
This is a random misfire of all the engine cylinders, the causes are many and each must be diagnosed to fix the problem. If you click this LINK you will go to the best info I know of for diagnosing the problem.
it should but recheck ur wires and plugs first a bad plug or wire can cause a knock ping problem and set off sensor also check the knock sensor connections at rear of engine----- the knock sensors for the 8 cyl are located under the intake manifold so its labor intensive to replace the sensor
from the description you give, this sounds like the engine is "pinging". the way to solve this is to use a higher octane gas, or change to a hotter spark plug.
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