Question about 2005 Chrysler 300
2005 chrysler 300, engine top knocking sound
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Posted on Jan 02, 2017
The Chrslyer engines are prone to carbon build up in the engine when they are not driven hard. When the misfire occurs the engine runs rough, the car shakes a bit, and the check engine light comes on. The good news is that this is a recognized issue at Chrslyer. There is a Technical Service Bulletin (TSB) out for this. Synchronicity in the Universe being what it is, my car is in the shop at this moment being serviced for this very same thing. It is a 2002 300M Special Edition with 57,000 miles on it. I haven't been driving it as much because I started taking a commuter train to work and when I do run it, I do not let the engine get up to operating temperature nor do I run it at highway speeds - thus the carbon build up. You may simply need to have the carbon blown out of the engine. Talk to a Chrysler Tech about a TSB for carbon build up leading to intermittent engine misfires and see if this might be at the bottom of the problem.
Posted on Sep 24, 2009
In your Model :-
The automotive thermostat is a temperature controlled on and off valve. When the temperature rises to a predetermined temperature, the thermostat opens up to allow the engine coolant to flow through the cylinder block and the radiator. This flow is crucial to maintain optimum operating temperature for fuel efficiency, enhanced driveability, and engine protection. The coolant flow is reduced when the engine is cold, and the flow is increased when the engine is hot. Contrary to popular opinion, operating the vehicle without the thermostat doesn't make the engine run cooler. It will actually run hotter because there isn't a thermostat to slow the coolant flow. This means the coolant doesn't stay in the radiator long enough to dissipate its heat.
TO TEST THERMOSTAT
There are several ways to test the opening temperature of a thermostat.
One method does not require that the thermostat be removed from the engine.
Positioning a thermostat into an engine.
TO REPLACE THERMOSTAT
If the radiator is filled to the top with coolant and the engine is run without the radiator cap in place, the coolant will expand and spill over as the engine warms up.
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Posted on Oct 07, 2009
if the light only flashed and went out, you have no reconizable issue. happy motoring. the system will sometimes catch little glitches and no electrical system is flawless. it will catch it and flash. if there was a serious issue the would stay illuminated and codes could then be retrieved. if it gives you piece of mind by all means go see your dealer. just keep an eye on things and always be aware of how your vehicle performs. i wouldnt waste the money until the light is illuminated constantly.
Posted on Nov 04, 2009
Testimonial: "Thank you very much. I like how you went into more detail which really made sense. I haven't had the issue since so I will take your advice. Thanks"
I have a 2006 with a 3.5 (41,000 miles). No oil consumption but had the knock. Started as a slight knock and continued to get louder. My buddy works at the dealer and hooked me up. Chrysler knows about this problem, it's the rocker arm assembly coming apart. They have a new revised part to fix the problem. THEY NEED TO RECAL THIS.
Posted on Jan 15, 2010
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