Bad sending unit in tank.
I have a 1994 Mercury Cougar that runs good but burns alot of fuel and after the engine starts the and gets some heat, oil pressure gauge indicates low when there is nothing wrong. I have the same problem with a 1991 Mercury Cougar 3.8, doesn't burn fuel that much but a mechanician told me that it might be a miscontact on the gauge indicator, some dirt in oil pan blocking oil pump or the oil pump is going off. First thing to do is changing oil and filter replacing it by syntec oil in it so it will stay in engine more time when heating. If after that nothing changed check oil pressure at a local garage.
If your heat gauge still isn't working after replacing the sensor and thermostat, check the wiring and connections for any damage or corrosion. You might also want to inspect the gauge itself for faults or consider testing the vehicle's computer for error codes. Additionally, ensure that the coolant level is adequate, as low coolant can affect gauge readings. If these steps don't resolve the issue, consulting a professional mechanic may be necessary.
You have a ground from the oil sender unit to the gauge. This is how you check a gauge. ground out the wire at the sender and it pegs out the gauge.
Sounds like a new pressure gauge sender is in order. That actual pressure would be virtually unattainable under normal working operation in your motor (10 psi per 1000 rpm is a good rule of thumb for proper oil pressure, a greater ratio at lower rpm is fine, the opposite, not so much), so it is definitely an improper reading of the gauge. If it is the factory dash gauge you are obtaining these readings from, it is also possible that the needle itself on the gauge cluster has simply loosened slightly, not enough to fall off, but just enough to swing into the improper location. If it is an aftermarket gauge, again, re-check the pressure sender.
On a 1997 Mercury Mountaineer : The " CHECK ENGINE " warning light is just to the left of the battery voltage gauge
On a 2002 Mercury Mountaineer : The " check gage " light comes on if the engine coolant temperature is too high , the engine oil pressure is too low , or the gas gauge is at or near empty
Did you check the -- sending unit !!
The check " gage " light on in your 1997 Mercury Mountaineer indicates that either your engine oil pressure is LOW , your engine temperature is HIGH or your gas tank is AT OR NEAR EMPTY .
Your fuel is low. Its telling you to check your gas gauge...
my gas gauge is not working what could be the problem
The check engine light is just to the left of your battery voltage gauge in your gauge cluster . When you turn your ignition key to the run position , just before starting your engine , the check engine light should come on momentarily to check the bulb
i dont really know but i think it is 700k? i d k you tell me
fuel gauge not working
This is not a job for a novice as much can be harmed when working with the printed circuit etc. Take it to a garage.
most likely the gauge
why would a speedometer stop working on a Mazda