I have a Ford Expedition 1998 5.4 engine ... when starting the engine oil pressure light goes to a minimum ... I changed the oil pressure sensor, but obviously this is just for the lamp, where the second sensor is for pressure, if someone can be a send me a picture or point to another problem? thank in advance
Sorry, I only saw one oil pressure sensor for your vehicle and it screws into the oil filter adapter.
I did look at oil pressure, it said 20--45 psi@1500 rpms. Any specs you see on the internet you would probably be wise to double check. All databases are not created equal.
You might be able to use analog gage in place of oil pressure sending unit to double check oil pressure.
SOURCE: 98 ford Exped. oil and engine light come on but go off on restart
did you check the transmission heat sensor or the intake air sensor these can be incorporated with temp guage on some vehicles
but theres also the problem of alternator is getting ready to give only
take an electro meter and hook up to cigarette lighter with a 2 post power maker and watch the voltage as your driving try to recreate the conditions that brought this about if the reading changes dramatically this will tell your alternator will need to be replaced at some point also dead cells in battery creates this little bump in electrical
SOURCE: oil light, noisy engine
What type of noise does it make. check if it has "blowby" . Blowby is when there is air coming through to the fuel system. It means that the rings , bearings , and other critical components are bad.The engine needs a complete overhaul or a new engine block. Maybe even the heads. if's it's a ticking, clicking kind of noise it is the valve lifters or rocker arm problem.such as the valves.
SOURCE: reset change engine oil soon light 2008 ford Expedition XLT
If you have the optional message center it is on page 144 of your owners manual.
Press and release the SETUP
control to display “OIL LIFE =
XXX% then HOLD RESET = NEW”.
If you have the standard message center this begins on page 126 of your owners manual.
SOURCE: 98 expedition starts then after 15-20 seconds engine dies..
Replace the idle air control valve. Mine just did it today the 15th of August. I replace the Idle air control valve and problem solve. I have a 2000 Expedition 5.4 liter.
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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