Question about 1999 Chevrolet Express

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Where is the oil pressure sensor? i have a radiator leak and i filled it before driving and now the oil pressure is low. can you help?

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  • pmichael54 May 11, 2010

    has it got oil in it?

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  • Master
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It is located by the distributor, did you check oil level? how many miles could also be worn pump if very high miles or worn bearings

Posted on Jul 16, 2009

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Posted on Jan 02, 2017

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1 Answer

ENGINE SMEELS HOT AFTER DRIVING ANY DISTANCE.


Hi Dianne, sorry, but I have to ask: after the oil change, are you sure the oil was re-filled? Maybe some got spilled on the exhaust manifold and needs to burn off (any smoke?) Is there coolant visible in the overflow tank? If the coolant is low, perhaps there is a leak in a hose to and from the radiator. "Hot smell" can also be rubber burning, i.e. drive belts, clutch pressure plate. Hard for me to tell w/o being there-hope this helps!

Jan 29, 2014 | 2008 Subaru Legacy

1 Answer

Coling light is on after being filled


The light sensor is in the radiator tank. When cool remove the radiator cap and fill radiator to top. It is possible that the radiator cap is faulty and not allowing water to be drawn back from the reservoir. .Check for leaks by having a cooling system pressure test done

Mar 28, 2013 | Buick Cars & Trucks

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MY IMPALA 2007 LT IS LEAKING OIL GASKET WAS REPLACED TWO MONTHS BACK IT HAD BEEN FINE BUT JUST YESTERDAY OIL PRESSURE LOW SENSOR CAME ON & NOW I NOTICE IT'S HAVING A SLOW WATER DRIP PROBLEM AS


Yes or a small bypass hose. You may be able to get a loan of a tester at autozone, oreilys, or advance autoparts. You want a radiator pressure tester. Do not exceed the cap rated pressure. When the engine is warm, you can add pressure and look for water seepage.

There are also chemicals to add to detect leaks if the first method is unsuccessful.

Mar 29, 2012 | 2007 Chevrolet Impala LS Sedan New Cars

2 Answers

Looking for the fill plug on a 200 dodge darango 4 wheel drive front punkin all i see is a vent pipe


COOLANT-ADDING ADDITIONAL
Do not remove radiator cap to add coolant to system. When adding coolant to maintain correct level, do so at coolant reserve/overflow tank. Use a 50/50 mixture of ethylene glycol antifreeze containing Alugard 340-2 y and low mineral content water.
Remove radiator cap only for testing or when refilling system after service. Removing cap unnecessarily can cause loss of coolant and allow air to enter system, which produces corrosion.

COOLANT LEVEL CHECK
The cooling system is closed and designed to maintain coolant level to top of radiator.
WARNING: DO NOT OPEN RADIATOR DRAINCOCK WITH ENGINE RUNNING OR WHILE ENGINE IS HOT AND COOLING SYSTEM IS UNDER PRESSURE.
Remove radiator cap. The coolant level should be to top of radiator. If not, and if coolant level in coolant recovery bottle is at ADD mark, check for:
  • An air leak in coolant reserve/overflow tank or its hose
  • An air leak in radiator filler neck
  • Leak in pressure cap seal to radiator filler neck
TRANSMISSION and OIL LEVEL CHECK TUBES
pctech1_27.jpg

Mar 04, 2011 | 2000 Dodge Durango

1 Answer

Just bought my 2008 Chevy Impala and I love it except when I use the remote start or just start normal, it does not heat up unless I am driving down the road. It blows cold air until i drive. Is this...


You may be low on coolant - or have an air bubble in the heater core! Make sure you have the right antifreeze and mix 50/50 with water. Start car, turn heater on max heat full blast and fill reservoir with coolant. If you have access to the radiator cap I would fill from there. This is a pressurized system, so it may blow some coolant out at you. Squeeze upper radiator hose to ensure it is full, cap radiator and now recheck the reservoir. If this doesn't help, you'll need to raise the front of the vehicle so the radiator cap is above the heater core hoses. Remove cap, start engine with heater and blower on high and fill radiator. Cap radiator before you lower the car and you should be good. Keep an eye on the coolant reservoir as you may have a leak which would cause the low coolant symptom. You also have a sensor to tell you is you are low on coolant. If you are and it is not lighting up, you may want to have it ( the sensor) tested and replaced.
Good luck!!

Nov 17, 2010 | 2008 Chevrolet Impala

2 Answers

Massive oil leak above starter chevy corsica 1996 can u help me


the oil pressure swicht collapse and pressure line leak out from the sensor .cheap to replace ,fill up the oil level after .

Oct 22, 2010 | 1995 Chevrolet Corsica

1 Answer

Tapping noise


sounds to me it going under the car as your driving .i would look at the oil pressure switch or sensor to see if it is leaking .you wouldnt notice a drip because it wont leak unless it is running , kinda a common problem for dodge
also see if you have a oil cooler either seperate or builtin to the radiator and look in the radiator for oil.

Jan 10, 2009 | 2006 Dodge Magnum

4 Answers

Oil pressure light at low RPM


Before you have major repair done on your car because of the "oil pressure light", review the list and see if any of these might be the source.  Some of the things on this list are things you can do yourself, some only done by a mechanic (inexpensively), and others require the aid of a mechanic.
1.  Check to see if you have a leak.  Low oil levels can make the oil sensor light come one.  Check your oil level following the manufacturers recommended procedure or use the information listed here http://autorepair.about.com/od/regularmaintenance/a/checkoil.htm.  If you do not have a low oil level, but still suspect a leak, place a drip pan under the oil plug overnight.  If you have a leak, you'll see signs of it there.  Then take the vehicle to a trustworthy mechanic and let them trace the leak.  It is possible for your engine to only leak when it is hot, so make sure you get the engine nice and warm before you put the car away for the evening and place the drip pan under your vehicle.  Other signs of an oil leak are listed below as well as an "oily" exhaust that leaves it mark on your bumper or "blue smoke" as you drive/idle.
2.  Check the coolant levels. If the coolant is low, the oil will heat up faster and cause a viscosity breakdown.  When the oil viscosity is low (= thin oil), the oil sensor light can come on.  If the coolant is low, add more.  Keep in mind that an engine running hot will heat the engine oil to the point that it thins out and burns off in the cylinders.  If the coolant level is fine, have the coolant (water) pump checked.  If the coolant is not circulating well through the engine, you'll probably have coolant boiling over, too.
3.  If you can afford to do it, change your oil to a higher or lower viscosity.  Refer to your maintenance manual and your trusted mechanic. I say this because, if your oil is thinning out too much because the viscosity is too low, your "check oil" light will come on.  If your engine oil is too thick, you engine will need added internal pressure to get it to circulate.  At lower RPM (just like thin oil), your engine oil light will come one.
4.  Have the oil pressure checked by other than an electronic means.  Your trusted mechanic can place an oil gage between your oil filter and the rest of the engine or on the oil fill cap of the engine.  If you are having an oil pressure problem that is seal-related, that should narrow it down.  If you can't afford to do that, when you get your next oil change, replace: the oil fill cap, PCV valve, and air filter.  All these contribute to the measurement of engine oil pressure by that picky little oil pressure sensor.
5.  Have the oil pressure sensor checked.  You may need some weird add-on to make it behave.  Do a search for the following part and read and you should have a better understanding: "part # 05017800AA a terminal/wire/vent to the oil pressure switch connector".  Never forget that sensor are usually engineered to report a problem well before a catastrophic failure can occur.
6.  If you're driving a high-milege car, make sure you are up to date on all of the engine-specific services.  For some vehicles, it is recommended that the head gaskets are replaced.  If you have internal engine leaks because of it, this will solve most of those issues.  Signs of this include: coolant visible in the crankshaft area (you can see this with the oil cap off), oil fouling your coolant (you can see this in the coolant reservoir), or smokey exhaust.  Expect your trusted mechanic to recommend that you change your spark plugs, timing belt, and cam shaft gasket at the same time.
7.  See if the oil pump needs to be replaced.  A faulty oil pump can contribute to low oil pressure as it fails (but hasn't failed, yet).  
8.  Do all of the above BEFORE you take to recommendation to have your engine replaced.
I have a 1998 Chrysler Cirrus (I know it's not a minivan, but hear me out).  I've been the single owner and have learned more about how engineering oversights or over-cautiousness can send you to the mechanic for just about everything.
Hope this helps!

Jan 10, 2009 | 1999 Dodge Caravan

1 Answer

Low oil compression


if the needle is on or around the letter N then thats normal. you can also change the oil sending unit. as far as the engine light once you change the EGR valve and the EPT sensor the engine light should go off

Jan 01, 2009 | 1994 Ford Explorer Limited

2 Answers

Low coolant light


Have the car put on a rack and look for a white powder, this will be the residue left by the coolant leak, if you find nothing then pressure test the system and look for a pressure drop after a few minutes, if you have a loss of pressure then the system is leaking, if there is no sign of the leak then it is going inside one of the cylinders.

Oct 11, 2008 | 2002 Chevrolet Avalanche

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