I just changed my oil after noticing that it was time and that i was very low on oil. prior to this my oil pressure gauge came on and i thought it was do to my low oil issue but when i changed the oil it didn't fix the pressure gauge so now I don't know what to do. the ticking noise hasn't stopped but has rapidly decrease since the oil change. I don't see any oil leak and my car isn't getting hot so i'm lost
The ticking noise is can be a sign of low oil pressure or worn out oil/wrong oil grade. Since you just changed your oil I would say that it is not the oil. The decrease in ticking comes from the new thicker oil. If you have an oil pressure gage, locate the oil pressure switch or any other oil passage to the engine and connect the gage to the passage and check the oil pressure and compare that to the mfg specs.. The oil pressure will most likely be something between 30-60 when the engine revs up a little but do check the mfg specs from a manual or call the dealer for the info.. If it has very little or no oil pressure it could cause extensive engine damage or complete engine failure. It is best to check the pressure or have it checked before you continue to drive the vehicle.
SOURCE: Engine ticking noise on cold starts
Sounds like a stuck valve lifter. I'd use some oil additive for unsticking lifters.
SOURCE: Oil pressure gauge
Low oil pressure is generally caused by internal engine bearing wear, not a "bad" oil pump... Pumps become "bad" when debris from a failed component gets into it, causing damage. (exception being pressure regulator spring/plunger assembly becoming clogged with gunk in engines that do not get proper maintenance; likely not your case)
Were there any tapping noises coming from engine when pressure was low? If not, The most common problem is the pressure sending unit, sending bad info to the warning light. If passage going to it or internal passage is gunked up, this problem usually disappears when oil is changed. sometimes the sender just goes bad, in which case, change it.
To get a proper diagnosis on your problem, have someone put a mechanical oil pressure gauge on it. This will read the actual oil pressure and will tell you a lot about the condition of your engine!
I have never seen a valve job that corrected any oil pressure problem. I mistrust anyone who would even think that!!!
Mlinimum low pressure at idle is 15 psi Max is about 60psi running (higher can explode an oil filter) A reading of 15psi indicates the beginning of a problem. although considered "safe" it is not good.
SOURCE: ticking or clicking noise in the engine while at idle speed
The "lifters" are valve lifter, not oil lifters. They are best described as hydraulic cushions. They use the engine oil pressure to expand and take up the slack between components. As the engine wears, clearances increase and the oil pressure decreases at idle. The ticking goes away with an increase RPM because the oil pressure increases. Using an additive like STP to thicken the oil some might stop it. It isn't uncommon or serious. I had a car once that had lifter noise unless I used Rislone detergent additive to keep varnish from building up around the lifter making it stick. The symtom of coolant in the oil is milkey foam. Some synthetic oils go in clear then turn red or purple. Relax and enjoy the next 100,000 miles. Keep the oil and air filter changed and watch for a leaking water pump. Overheating because the water pump seal or thermostat failed is the death of an older engine. If you want to be proactive, have these and the radiator hoses changed. Avoid a made in China water pump if possible.
SOURCE: 2007 Ford expedition won't start
ur oil pump may be failin-there r sensors everywhere on new cars-keepin u from starting as safety measure-computer systems r complex n things dont always show on 1 scan-they kinda hav the mindset of a pc
Testimonial: "Thank you. I have spoken with 2 other mechanics who said the same thing regarding the oil pump. It's being looked at. So I'll post more once I know"
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