Rough Idle During Cold Start Prius 3rd Gen Solved

Rough Idle During Cold Start Prius 3rd Gen Solved Youtube 2015 3rd gen toyota prius. 65k miles on odometer. runs fine. uses no oil between oil changes. 45 mpg cold weather 65 mpg warm weather (no a c running)no obv. The egr system design is faulty, which causes carbon buildup thru out the whole system, including the spark plugs. but the rattle knock cold start and rough idle on cold start doesn't appear until the spark plugs get carbon buildup on them causing misfired on 1 or more cylinders.

Toyota Prius Gen3 Rough Idling When Cold Start P0410 Code On Youtube This rough ice start up appears to most often follow an incomplete ice warm up cycle with an intervening cold soak of ~4 hours). ambient air temperature may also factor in; but this ice issue has occurred under a wide range of temperatures. perhaps warmer ambient temperatures require a somewhat longer cold soak to bring on this rough engine start. Chrillermiller said: ↑. my son has a 2010 gen 3. started horribly knocking, shaking a few weeks ago. 225,000 miles. was showing generic missfire codes and missfire on cylinder 1, 3, 4. check engine light on. took to local shop. they recommended plugs, coils, egr cooler and valve. $2600. Location: devon. posted january 19, 2015. there are two fixes for cold start ice rattle knock. 1. for noises occurring at temperature above 10 degrees c which involves fitting a modified intake manifold this was ultimately fixed in production late nov 2012 for prius ( incl pip & ) and late jan 2013 for auris. What an engine needs to idle smoothly. your prius’s engine needs air, fuel, and spark to achieve optimum ignition. when one or more of these variables is off, it can lead to a rough idling condition. fuel – the ideal air to fuel ratio is 14.7 parts air to one part fuel. air – the air entering your car’s engine must be metered by the maf.

Cold Rough Idle Location: devon. posted january 19, 2015. there are two fixes for cold start ice rattle knock. 1. for noises occurring at temperature above 10 degrees c which involves fitting a modified intake manifold this was ultimately fixed in production late nov 2012 for prius ( incl pip & ) and late jan 2013 for auris. What an engine needs to idle smoothly. your prius’s engine needs air, fuel, and spark to achieve optimum ignition. when one or more of these variables is off, it can lead to a rough idling condition. fuel – the ideal air to fuel ratio is 14.7 parts air to one part fuel. air – the air entering your car’s engine must be metered by the maf. 50 posts · joined 2013. #14 · feb 14, 2014. xcntrk said: i've noticed occasionally on cold start the combustion engine has a terrible vibration and knocking that occurs for the first 1 2 seconds of ignition. the lexus service bulletin about a loud engine knock or rattle noise at initial engine start after cold soak applies to 2011 13 ct200h. A damaged egr valve can hang open and cause excess flow on startup. when this occurs, the engine will stumble and run rough, sounding as if it is misfiring. a rattling or knocking noise is common.

What Causes Rough Idle At Low Rpm How To Fix Them A New Way 50 posts · joined 2013. #14 · feb 14, 2014. xcntrk said: i've noticed occasionally on cold start the combustion engine has a terrible vibration and knocking that occurs for the first 1 2 seconds of ignition. the lexus service bulletin about a loud engine knock or rattle noise at initial engine start after cold soak applies to 2011 13 ct200h. A damaged egr valve can hang open and cause excess flow on startup. when this occurs, the engine will stumble and run rough, sounding as if it is misfiring. a rattling or knocking noise is common.