Oil light comes on after engine is hot when slowing down
After driving about ten or fifteen minutes, my oil indicator light will illuminate whenever I slow down or stop. It will usually go off once the RPMs increase, but there have been a couple of times that it hasn't. When it does clear, it isn't always at the same RPM. The oil level checks OK when the engine is cold and I haven't noticed any oil spots under the car. What might cause this issue?
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It is impossible to provide a proposed answer to your question without knowing the YEAR and MODEL of your vehicle.
That being said, your OIL light indicates either a deficiency of oil in the crankcase or an oil condition or delivery issue.
Sounds like a bad rod bearing. Doing an oil change with halfway decent oil will "disguise" the sound but is still there. Check oil pressure when car is warm, if u are getting a low reading it's definately rod bearing (s). Car must be completely warm. Drive around for ten fifteen minutes, then check.
Since you do not state whether you checked the oil and what the condition and level it was, that is important to know for advise to be given.
But unfortunantly, what you describe is some of the indications of a blown head gasket. Did you have white smoke coming out of the exhaust? Is there any indication of water on your dipstick? Is there a oily slim on the top of your antifreeze in the radiator overflow?
If it is top left of the control panel and has a little thermometer in the middle of it, then its the transmission oil temperature light.
"In some markets, this bulb will temporarily illuminate to indicate the bulb is working when the ignition key is moved to position 2".
Generally, if its on for less than a couple of seconds - all is fine. If it stays on whilst driving then your transmission oil is too hot (hot weather, handbrake left on, punishing the engine etc ....).
If it comes on, check the oil temperature guage, and slow down. If it remains on, stop the vehicle and do not continue until it has extinguished.
Always try to get to the root cause of this fault, as it may be something more serious, such as loss of coolant (leading to engine seizure). Never check the coolant level on a hot engine - serious risk of burns injury.
Oil Change Reminder Lamp: Service and Repair
Engine Oil Replacement Reminder Light
This light acts as a reminder to replace the engine oil.
This light will come on when the ignition key is turned to "ON" and will go off after about a few seconds.
When you drive for about 7200 km (4500 miles) after the engine oil replacement, this light illuminates for about 3 seconds and then flashes for about
12 seconds with the ignition key turned to the "ON" position. If you continue driving without replacing the engine oil, and if the distance driven
exceeds 8000 km(5000 miles), the light will come on. The light will remain on thereafter.
If the light is flashing, we recommend that you replace the engine oil at an early opportunity depending on the driving and road conditions. If the light
comes on, replace it as soon as possible.
Resetting the system
The system must be reset after the engine oil replacement. Reset the system by the following procedure:
1. Turn the ignition key to the "OFF" position with the odometer reading shown.
2. Turn the ignition key to the "ON" position while holding down the "TRIP METER" reset button.
Hold down the knob for atleast 5 seconds. The odometer indicates "000000" and the light goes off.
If the system fails to reset, the light will continue flashing.
When the engine stalls, the amp & oil light always come on. That is not a probelem. It's supposed to do that.
Check these things:
Ignition switch recall completion. Call any Ford delaer with your 17 digit VIN number to see if this recall has been done. If not, they will do it for free. 95S28 - Safety Recall - Ignition Switch Replacement.
TFI ignition module on distributor could be going bad when hot.
Fuel pump could be going. Check for 35-40 PSI at idle.
Don't have too much oil in engine as it will splash and foam and engine will fail.
when you press the brake pedal the brake master cylinder vacuum booster takes vacuum away from the engine and that slows the idle speed just enough to trigger the low pressure oil light. Pull the oil pressure sending unit out and hook up an oil pressure test gage, if the pressure is above 15 PSI hot engine idle in drive replace the oil pressure sending unit.