Question about 1995 Chevrolet Monte Carlo

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Low coolant light,low oil and check engine light

Low coolant light comes on even though i have the proper fluid level in my radiator

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Most likely it is the sensor, it is located on the radiator near the battery, it will stay off if you unplug it, Check the fuses and relays though just to make sure, oil pressure sensor possibly but again check fuses

Posted on Jun 07, 2010

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Posted on Jan 02, 2017

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2006 jeep grand Cherokee limited if the radiator overflow jug is empty will it cause the transmission temp light to come on


I would say it is possible an overheated engine which is not coolling the transmission can trigger a lot of lights. Many transmissons are heated and coolled by a line which goes to the radiator of the engine cooling system.

Apr 28, 2016 | Jeep Cars & Trucks

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2000 Chevy impala low coolant light on needs jump start every morning and night squeeky


1. If you need to jump start the car the battery is failing and you need to replace it. Other wise you may have an excessive power drain while the car is sitting which is running down the battery sufficiently so it will not run the starter motor.

2. If you have a low coolant warning light then you need to check the coolant level in the radiator when the engine has cooled and top it up using only the correct spec coolant for the car as specified by GM. Coolant level in the radiator needs to be checked very regularly in any event as does engine oil and power steering fluid level. If the coolant is low your engine will overheat and will likely cause very expensive engine damage many times what it will cost to fix the cause of the low coolant. You will have an external leak(such as a leaking radiator or leaking hose or failed radiator cap etc etc ) or an internal coolant leak that is causing the loss of coolant. Whatever the cause, and you need to have it investigated and repaired straight away if the cooling system continues to lose coolant.

Dec 16, 2015 | Cars & Trucks

1 Answer

Cut off light comes on at 60mph oil pressure drop 38 39


If the oil pressure is otherwise normal except when you are running at higher speeds i suspect the relief valve on the oil pump is sticking in the open or partially open position at constant higher engine speeds.

You will need to have the oil pressure on the engine properly tested by a professional and the cause of the low oil pressure diagnosed. If you drive the car on low oil pressure you will cause very expensive internal engine damage many multiple times the cost of fixing the current problem.

Insufficient engine oil changes for the type of vehicle use (a practice which most owners follow because they usually do the absolute minimum thinking they will save money) causes sludge build up in the engine and these kinds of issues that you have now. Most owners are even too lazy to routinely and frequently check under bonnet fluid levels between services - engine oil level, coolant level, power steering fluid level etc.

Nov 23, 2015 | Cars & Trucks

1 Answer

2000 vw beetle 2.0 L, low level coolant light...engine mil code 1256


not the pump but air in the system or a broken wire to the coolant level sensor
that sensor at the top of the radiator tank has to be completely immersed in coolant or the circuit is broken and the light comes on
same effect id the wire to that sensor is broken in the insulation

Jun 16, 2017 | Cars & Trucks

1 Answer

LOW COOLANT LIGHT COMES ON SOMETIMES AND TEMP GUAGE SHOWS ENGINE GOING TO OVERHEAT. HEATER GETS COLD. IS IT THE THERMOSTAT?


There may be a thermostat problem, but your symtoms indicate low coolant level. When coolant is too low, it will not circulate, so you get no heat in car, and the coolant remaining in engine block overheats because no cool fluid coming in.
You need to fill the system up properly then look for leaks.
With cold engine, open radiator cap. Fill with antifreeze directly in radiator. Start engine, top up rad if level drops. Put heat control on Hot. Fan on low, heat on high. Gently rev engine and top up rad as needed. IF as engine heats up, it starts kicking fuild violently out of radiator, then the thermostat is bad. if not, then recap radiator, top up overflow bottle and you're done. Look under car for any sign of leaks. Steady dripping indicates a leak, then address that.

Feb 27, 2011 | 1998 Chevrolet Monte Carlo

2 Answers

Oil level low light comes on. When I turn


some cars with oil level warning light on, it doesn't mean that its only reading the engine oil level is low, sometime the transmission fuid too. Did you check your transmission fluid if it is ok or not? try to check and let us know, ok.

Mar 14, 2010 | 1999 Buick Century

4 Answers

Im not getting any heat and my truck is overheating


It is overheating because not enough coolant circulating through engine water jacket. There are 3 things to cause this problem:
1- Bad Thermostat is not opening at pre-determine temperature. 2- Bad water pump not turning as the belt driving. 3- Bad radiator is clogging up causing coolant stagnant even good thermostat and good water pump
Since you don't have heater, there maybe a serious problem of no coolant in the loop due to a blown head gasket. What happens is that due to the blown head gasket, coolant gets through the oil path from water jacket, so the coolant level is low not at the coolant hose level for heater core to receive the coolant. There is no coolant flowing through the heater core or heater matrix, hence there is no heater.
Check oil level, if it is high then water already gotten in the engine causing coolant is at low level from radiator. If you don't have this problem then you can be happy about that. Now go back to check on the 3 things that I mentioned earlier. Good luck.

Dec 14, 2009 | 2000 Land Rover Range Rover

3 Answers

Coolant level low light comes on and coolant level is not low in reserve tank or radiator.


There is a TSB for this problem. Here it is.


Bulletin No.: 04-06-02-007

Date: August 11, 2004

TECHNICAL

Subject:
Low Engine Coolant Level Indicator Always On (Diagnose Low Coolant Level System Operation/Check Sensor for Oil Contamination)

Models:
2000-2002 Buick Century, Regal
2000-2001 Chevrolet Lumina
2000-2002 Chevrolet Impala, Monte Carlo
2000-2002 Pontiac Grand Prix
2000-2002 Oldsmobile Intrigue


Condition

Some customers may comment that the low engine coolant level indicator is always illuminated.


Cause

The cause of this condition may be due to engine oil contaminating the coolant. Possible sources of oil contamination are internal engine leaks, improper service procedures, or the addition of some types of anti-leak additives to the cooling system. Once in the coolant, the oil leaves deposits on the level sensor creating an insulating film. This film results in a false activation of the coolant level indicator.


Correction

Diagnose low coolant level system operation and check the sensor for oil contamination using the procedure listed below.


Important: No coolant supplements should be used in GM cooling systems, other than what is approved and recommended by GM. The use of "aftermarket" over-the-counter sealing and cooling supplements may affect the operation of the low coolant level sensor. Discoloration of the coolant recovery bottle is normal and does not necessarily indicate that coolant contamination is present. Flush cooling system only when instructed by this bulletin.

1. Verify that the coolant is at proper level in the radiator and the coolant recovery bottle. If the coolant is low, add proper amount of 50/50 water and DEX-COOL(R) mixture. If the low coolant light operates properly, diagnose the cooling system for loss of coolant as outlined in SI. DO NOT proceed further with this bulletin.

2. Remove the low coolant level sensor. Refer to Coolant Level Module Replacement in the Engine Cooling sub-section.

3. With the key on, the engine off and the coolant level sensor disconnected from the vehicle wiring harness, observe the low coolant light:


^ Light is on - Chassis wiring or instrument cluster concern. Follow the appropriate diagnostic information in SI.

^ Light is out - Proceed to Step 4.



4. With the key off, connect the coolant level sensor into the vehicle's wiring harness. Connect a ground wire (1) to the battery negative terminal. Using a sharp probe (3) attached to the ground wire, ground the coolant sensor probe (2) as shown in the illustration. Make sure a good contact is made. With the key on and the engine off, observe the low coolant light for at least 15 seconds.


^ Light is on - Replace the low coolant sensor and re-check system operation.

^ Light is out - Proceed to Step 5.


5. Using a small wire brush or emery cloth, polish the low coolant level sensor probe to remove any film or oxidation. The probe should be a bright brass color when finished. Use Brake Parts Cleaner to flush removed deposits from the low coolant sensor probe. Re-install the low coolant sensor into the vehicle and proceed to Step 6.

6. Flush the cooling system and install new DEX-COOL(R) mixture as outlined in the SI. Check the vehicle's warranty history to determine if any engine gasket had recently been changed. If there has not been a recent gasket replacement, locate and repair the source of the engine oil contamination.


Oct 31, 2009 | 2002 Chevrolet Monte Carlo

2 Answers

I don't know what the symbol means on my 1999 Pontiac Sunfire


does it look like a radiator? Low coolant sensor, may be in the overflow tank. Check your coolant levels when cold.

Jul 19, 2009 | 1999 Pontiac Sunfire

2 Answers

My husband and I have a 1995 Oldsmobile Aurora. We just changed the oil about 2 weeks ago. He checked the fluids earlier and the oil was low and the car is running hot. What could be causing this?


If you changed the oil filter at the same time check that it hasnt come loose and leaked some oil though there would be signs of that where the car site. If it is overheating check your water as well.

Also check the oil for water and the water for oil as you will want to make sure that you havent done any head damage or blown the gasket.

Jun 28, 2009 | 1995 Oldsmobile Aurora

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