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HI TEMP / LOW OIL LIGHT 2003 EXPEDITION 4.6

Hi Temp Low Oil light comes on periodically at idle when very hot out and Oil Pressure Gauge instantly drops to zero when this happens. There are no noises coming from engine

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Posted on Jan 02, 2017

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SOURCE: feul temp oil pressure gauge not working

this problem sounds like a bad ground to your gauges first check your fuses with a test light take the end of light ground on battery with a long wire with alligator clip on end so you can reach around to test second thing take probe tip touch pos of battery to make sure tester lights then test all fuses first both sides most fuses have two little holes one on each side on top to put probe on fuses should light up on both sides some fuses wont light on both unless the ignition is turned to acce or for instant a headlight switch has to be on to test fuse if fuses check out okay you will have to get into the gauge instrument cluster possible if these gauges are pushed into a pin type or flat circuit board its possible loose scews and a good bump would make a bad contact in the cluster

Posted on Sep 11, 2008

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The dealer replaced the radiator fan controller twice- said there was a second recall.

Posted on Oct 15, 2008

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SOURCE: I have a 2005 chevy Impala temp gauge going crazy

faulty stepper motors in your cluster. and its 03-06 GM vehicles that are affected. and no there isnt a glitch in all chevy cars you smoke too much u paranoid freak. you can fix this yourself for about 40 bucks. heres how i did it. click the link

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Posted on Mar 22, 2009

co7196
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SOURCE: High temp oil light coming on and off, oil pressure gauge reading

Add the quart of oil. Oil also acts as a coolant.

Posted on Jun 20, 2009

  • 255 Answers

SOURCE: oil pressure gauge drops to zero when

This has an electric pressure gauge with a sending unit. Try this: When at idle, SLOWLY increase the engine speed. If the needle on the pressure gauge all of a sudden leaps to a pressure (like 'real quick') and acts normally with even faster engine speeds, the sending unit is bad. (It is just not reading the lower pressures.) Zero engine pressure will manifest itself in a bunch of knocky sounds and lifters that aren't pumping up and therefore "ticking" loudly. You probably don't have that since you didn't mention these problems.
Replace the sending unit after the above test and you should be fine.

Posted on Nov 24, 2009

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High temp low oil pressure light comes on after driving for a few minutes, then off when engine at driving rpm. At stop light (idle or low rpm) light comes back on. Normal driving it goes out.


You need to find out why you have low oil pressure. It is normal that as engine rpm's increase, the oil pressure will rise- the oil pump is moving oil faster. Even though your light goes out, you could still have critically low oil pressure. There should be sufficient pressure at idle to keep the light off. The light will come on when your oil pressure is almost nil- I believe for some it's as low as 8 psi. Normally, oil pressure at idle is specified anywhere from 15 to 40 psi. You would have to check specifications for your Expedition. To verify oil pressure, hook up a mechanical gauge at the oil pressure sending unit on the engine block. Check with a local shop.

The causes run from easy, simple to budget busting ruin. Low oil level, wrong grade oil, real old oil, oil leaks, internal oil leaks, worn oil pump, worn crankshaft bearings. It was pretty common on older very high mileage cars to have a fluttering oil light at stops and idle. It was time for a rebuild, or time to look for another car.

Jul 06, 2015 | 2003 Ford Expedition

1 Answer

Signs bad temp sensor


Bad oil pressure sensor, oil pump, balancer-shaft bearings..
Which grade of oil did you use? Did you try to check the pressure with an oil-pressure gauge?

Sep 14, 2017 | Saab Cars & Trucks

1 Answer

When i start2003 expidition temp gauge goes on but cuts out in 1-2 secs hot engine low oil light comes on oil level is fine and car runs fine


You do not have a timing belt- you have a chain

If the shop put in the problems, wouldn't you go back there?

Jan 31, 2013 | 2003 Ford Expedition

3 Answers

Oil pressure drop with engine getting hot


You'll want to remove the electrical oil pressure gauge and check the oil pressure with a manual gauge to verify low oil pressure. If the oil pressure tests good with a manual gauge, then you either have a faulty oil pressure sender, or gauge in the dash (I rarely see faulty gauges). If the pressure is still low, suspect worn crankshaft bearings. There is also a possiblity that the screen to the oil pump is clogged. This can be visually checked by removing the oil pan and cleaned.

Aug 14, 2012 | 1989 Ford Ranger

1 Answer

When I drive my 02 caravan for 10 minutes the oil light cuts on and the car cuts off. After letting it rest over night, I drive it again and it does the same thing. It seems like it cuts off after the...


Hi, try putting in a new oil pressure switch. If the light continues to come on, you will need a new oil pump. The oil pressure switch cuts off the fuel pump when the oil pressure is low. Please let me know if you have more questions.

Sep 15, 2011 | 2002 Dodge Caravan

1 Answer

Hi just bought i999 1.6 audi a3 and it has started to pulse when idling and oil light comes on when engine reaches nornal temp what could this be please help


If by pulsing you mean that the idle is fluctuating up and down, this is caused by oil/sludge build up in the throttle valve. To rectify this remove the intake pipe at the throttle valve. Use engine cleaner/degreaser on a rag to clean out throttle valve around throttle butterfly. Open butterfly manually to assist access. The oil pressure light coming on is usually caused by the oil pump pick up becoming blocked by carbon and sludge in the oil sump. If you have a suitable oil pressure gauge, check the oil pressure at the oil switch. Oil pressure should be 3.5- 4 bar at 2000 rpm at operating temperature. If pressure ok, Pressure switch may be faulty. If pressure low you will have to remove oil sump and clean out or replace oil pump pick up. If not done, may result in major engine damage. Sludge and carbon build up caused by oil not being changed often enough. Best to use a synthetic oil.

Jun 13, 2010 | 2007 Audi A3

1 Answer

High temp oil light coming on and off, oil pressure gauge reading


Add the quart of oil. Oil also acts as a coolant.

Jun 19, 2009 | 2000 Ford Expedition

1 Answer

Oil light blinks when I slow down


It sounds like the oil pressure is dropping at low speed. You may try to change the sending unit first sometimes that may fix it. Hot is going to be over 220 degrees.

Mar 02, 2009 | 1989 Volkswagen Cabriolet

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