Question about Chrysler 300C
How long have you owned this vehicle? How many miles are on this vehicle? The clicking sound you hear is a normal characteristic of the Hemi engine. Your actually hearing the camshaft/valve train assembly, due to the high lift. No worry's here. As for the oil pressure on start up, 48-52 psi is ok on this vehicle as well as other vehicles, the oil is cold and will create higher pressure. 20-26 psi after wards is normal, this is due to the oil heating up and is not as thick when the engine is first started. There is nothing wrong with your oil pressure.
Posted on Sep 11, 2010
WELL YOUR FRIENDS HAS 3.5 OR 2.7 V6 ENGINES OIL PRESSURE IS 45 - 105 PSI @ 3000 RPM THE 5.7 ENGINE OIL PRESSURE 25 - 110 PSI @3000. YOUR ENGINE IDLE HIGHER IN THE MORNING GET OPERATING TEMPERATURE FASTER THEN IDLES DOWN OIL PRESSURE DROP TO 25 - 30 PSI THAT NORMAL.YOUR FRIENDS HAS V6 ENGINE WHY OIL PRESSURE HIGHER THAN YOURS.
Posted on Sep 10, 2010
Check this previous comments:
I notice the oil pressure when fully warmed up and sitting at an idle reads between 16 to 20lbs. Is that normal presure for the car at idle?
When at highway speed the oil pressure goes up to 45 to 50lbs.
Also the temp. gauge reads 210 degrees at normal highway speeds
Then, 210 is normal with stock thermostat. Few test get 52 psi oil pressure at 70 mph. Not sure about oil pressure at idle as I haven't specifically looked at it, but 16-20 psi sounds normal as well.
All reported numbers are nominal. 200-225 is a normal coolant range. 10-60 is a normal oil pressure range.
All vehicles are subtly different, as well as operated differently under differing conditions. So the numbers var significantly.
Finally, your oil pressure is completely normal too; you only need 6 or 7 psi at idle to keep everything lubricated. As the engine RPM increases, so does the oil pump RPM - so you get more pressure when the engine is running faster, which is when you need it.
Posted on Sep 09, 2010
Do not worry about it as long as its higher than around 15lbs ,it could be a sender unit reading wrong ,if your worried then put a manual gauge on and check it but the main cause could be just a worn engine and by the time you buy a new oil pump and have the crank reground then it might be cheaper to buy a new motor .Best advice i can give if oil pressure is low is to not to over rev the engine by racing a jag or a porsche ,change the oil every 6000 miles with a oil filter every third oil change ,and stick a tin of STP or wynns in as well ,now on some engines in the oil pump or the filter housing is a oil pressure relief valve and sometimes the spring goes weak ,but i cannot help you here because i have never seen this vehicle here in spain so i have no product knowledge of it .But i think that if you change the oil regular then you will not have a problem ,When i worked in fords many moons ago when the new engines reached the test bed for a quick run they could read anything within the spec and this spec was well ----- so long as the oil light didnt come on it was good enough
Posted on Sep 09, 2010
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Posted on Jan 02, 2017
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1. Start and run the engine. Verify normal fuel system pressure of 339
kPa +/- 34 kPa (49.2 psi +/- 5 psi).
2. Stop the engine. Verify that the fuel system pressure does not fall below
207 kPa (30 psi) in less than five (5) minutes.
3. If the fuel pressure does not fall below 207 kPa (30 psi) in less than five (5)
minutes, then the long crank time may not be due to the fuel system. Further
diagnosis must be made to the entire engine system.
Hope this helps you, because lack of fuel can cause a missfire and by what you said this is were i would start before spending any more money. If i can help just re post.
Thanks dodge tec
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