Best Answer

Either the coolant level is low in the recovery tank or the sensor is defective or has a loose connection.

actually most of the time it's the floating magnet in the tank. the magnet goes up and down with the coolant level. If your coolant level is where it should be and it's not overheating then it's something to do with a sensor. but before you run out and buy a new one there a little trick you can do. loosen the tank (it's only one screw that holds it in) and give it a good shake for about 10 seconds. what happens is the floating magnet will get stuck making contact with the sensor and trick it into thinking the coolant is low. 90% of the time this is the problem!!

User Avatar

Wiki User

โˆ™ 2010-02-25 02:11:18
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why would the Low Coolant light on a 2001 Pontiac Grand Am come on even though coolant level is good for a split second when you first accelerate?
Write your answer...
Related questions

Where is the second sensor for the 'Engine Coolant Light' on a 1996 Pontiac Grand Prix?

On the side of the radiator, by the filler neck? This is the only low coolant sensor I know of. *Ditto here; There is only one for temp and another for coolant level. Each sets off a different warning light on the dash.

What to do if all of the coolant has emptied out of the radiator?

First, do not run engine. Second, determine where the coolant has leaked from. Third, consult a mechanic with your findings.

How do you bleed air from the cooling system of a Pontiac Grand Am?

It should be a bleeder screw connected to the cooling system, it might be two.If you find it,you should open one at a time.Pour coolant into the system slowly,until coolant start coming out of the bleeder screw and then close it . DO it to the second screw too.Now if you do not have the bleeder screws.Pour coolant into your system slowly and squeeze the top hose until no bubbles come out and the coolant level should go down at this time and then pour alittle more in there

Why is the Cutlass supreme low coolant light blinking?

First off, check your engine coolant tank. If it's low, then that's the problem. Put more coolant in. If it's at the correct level, then look to see if there's gunk buildup. Second, is your engine overheating? If the engine is not overheating, and there is gunk buildup in the coolant tank, then you may just need to clean the sensor. If there is no gunk in your tank, your coolant level is fine, and your engine is not overheating, then it may be a bad sensor, and you need to replace it.

What is the best way to fush out your engine?

Auto parts stores sell coolant flush kits some are just a chemical you add to water after draining the old coolant. The other uses your garden hose fitting you install to flush the system after you drain the old coolant. I personally use the second method.

Where is the coolant temperature sensor in a Honda Accord LX?

The coolant temp is located under the distributor. It has 2. One with a single red wire and the second with 2 wires green/yellow, blue/yellow

Where is the coolant sensor on a Renault kangoo?

There is one on that Rad think the second is beside the termostat housing

What are the two sensors on 99 beetle 2.0 coolant flange?

When standing in the front of the car, the first sensor is the coolant temperature sensor. The second one closer to the car bulkhead is the thermostatic auxiliairy fan switch sensor.

Is there a second place to check-fill coolant other then the reservoir on a 2003 Jetta?

Is there a cap on the top of the radiator?

What is a coolant heater on a diesel engine?

You're thinking of a block heater. It plugs in to shore power, and energizes an element attached to the engine block (some have dual elements, and the second one will go to the oil pan) to heat the coolant in the water jacket so that it doesn't freeze. In turn, once the engine is running, this heated coolant will get circulated to the rest of the system, and begin thawing out the remaining coolant.Although a block heater doesn't actually circulate the coolant when the engine is at rest, there is a type available which is essentially an electric pump which will pump coolant through a heating element and back into the cooling system... I've only ever seen it on really specialized heavy equipment.

How do you bleed the cooling system on an Audi 100?

This should be fairly easy to do. First fill the coolant to the max mark on the tank. Then see if it almost automatically loses some coolant (it might almost burp its self) if it doesn't squeeze the big top tube right next to the coolant tank this will send some air back into the tank. Second uncover the bleeder valve for the system which should be hidden under a plastic cover near the windshield at the back of the engine compartment (taking off the cover is very easy). Look on the driverside near where the coolant tubes enter the heater, there should be a screw valve on the top tube. Third with the coolant tank cap off start the car, get it running hot, but watch the coolant level to make sure it does not over flow. Once it start to get hot, unscrew the bleeder valve and wait until it has a good flow of coolant coming out of it. This should bleed the system. Watch the coolant level, and refill as needed.

Is there a diagram of the coolant system for 1994 Oldsmobile achieva?

I have a Haynes manual for the Achieva and no diagrams are supplied for the coolant system.  In general, most coolant systems in vehicles are similar.  Here are the key sections: 1.  Thermostat -- A water valve that closes when the engine cools to a certain point.  Its job is to hold coolant inside the engine block until the temperature rises to a certain level.  When the coolant is hot enough it moves out of the block. 2.  Water Pump -- Pushes coolant through the block and radiator systems 3.  Radiator -- The radiator provides a means for coolant to shed heat.  Coolant typically enter the radiator at the top, driven by the water pump and the exits at the bottom. 4.  Overflow Reservoir -- This is a container that provides storage space for coolant as it expands when the engine is hot.  As the engine cools and the coolant contracts, it is drawn back into the cooling system. 5.  Heater Core -- The heater core receives heated coolant from the system.  A fan blowing across coils transfers heat into the air where it is blown into the passenger compartment. 6.  Cooling Fan -- Generally this electric fan turns on when a sensor tells it the water temperature is too warm.  The electric fan improves fuel economy because it loads the engine only when it is running.  Older styles of fans were driven by the belt and pulley system, which means they turned all the time the engine was running. 7.  Coolant Cycle (in general) -- Thermostat holds coolant inside the block until it reaches a certain temperature.  Thermostat opens and coolant reaches the water pump which  pushes coolant into the top of the radiator, coolant flows from the bottom of the radiator into the engine block and the heater core.  Coolant flows through the block back to the water pump. Specific information can be provided based on the vehicle model, year and engine data. ======== Appendix. Cooling system contains also the information Engine Coolant Temperature Sensor with two contacts that located on the thermostat housing, Elecrtonic Control Module (ECM) in the salon, the radiator fan relay in the box on the fireboard and the safety cap on the reserve coolant tank. The second reference Engine Coolant Temperature Sensor on the housing body has one contact (the second contact is on the sensor body) and used for the temperature indicator on the panel. I myself, 8/29/09

Where is the coolant temperature sending unit on a 1991 Chevy 4.3l?

There is two coolant temp sensors. One for the temp gauge that has one wire to it located on the drivers side head between two of the three spark plugs. The second second temp sensor sends information to the ECM and has two wires to it and is located next to the thermostat housing.

What are the Possible reasons for cooling system malfunctioning in a 2003 Toyota Camry 4d lexlese 4 cil?

If the coolant level is correct there are at least two reasons. First one is the thermostat and second one is the temperature sensor. You have to check basically the coolant level, the thermostat and the temperature sensor.

After replacing the thermostat on a 2001 Galant how do get the coolant back in the car?

fill up radiator with coolant within one inch of top, crank car turn heater to max .then watch antfreeze in filler neck to go down ,slowly add and wait oonce thermostat opens level will drop down lower,add more coolant to the top and put radiator cap back on. remember to keep your body parts away from moving engine and that the coolant gets really HOT if you decide to sneek a second peek after you put on radiator cap. DON'T DO IT !

Where is Coolant temp sensor on a 1984 gm 305?

On the engine block between the first and second spark plugs on the drivers side of the engine.

1998 Jeep Grand Cherokee Limited - replaced coolant sensor but still beeps and flashes coolant sensor bad - Do I need to reset and if so how?

Not sure if this helps, but the book I have on my 1996 Jeep Grand Cherokee says that their are 2 of these sensors, I have not had the time to look for the second one. I have the same problem.

Where can you get a cheap coolant system pressure tester?

eBay is probably the best place. You can get second hand ones there or you can buy cheap ones made in China.

In newton's second law force causes a mass to what?

... to accelerate.... to accelerate.... to accelerate.... to accelerate.

How do you flush out the coolant in a 2004 Saturn Ion?

The drain petcock is on the bottom left hand of the radiator(left if your looking directly in the engine compartment, right if your seating in the drivers seat). Its right above the bracket that holds the radiator in the bottom mount. Undo the petcock and then take off the reservoir cap. Once it's flushed, refill the reservoir with water (after you closed the petcock) run the engine for about 10 mins and then flushed again. Once flushed for the second time, refill with dexcool coolant and then your good. If someone can also point out to me where is the exact location of the reserve coolant so I can fully drain the coolant in the engine. Thanks!

Coolant temperature sensor location 92 Honda accord lx?

There are 2 coolant temperature sensors. The first one is located near the therostat housing at the upper rad hose. The second one is located on the back of the block near the EGR valve and ignition coil

In Newtons second law of motion a force causes a mass to?

... accelerate.... accelerate.... accelerate.... accelerate.

Where is coolant temp control sensor on a 98 olds aurora AC will not work and engine will over heat Computer says coolant temp sensor malfunction HELP Any pics online showing exactly where this is?

There are 2 Coolant Temp. Sensors, one is in the bottom of the coolant expansion tank(that where you refill the anti-freeze), You need to remove the expansion tank to get to it.Not To Worry, its a Very Easy Task.2minute job. The Second Coolant Temp. Sensor location ill try to describe. if u are standing on the drivers side with your head under the hood it is attached to the motors head,looking at the motor from this perspective it is on the right side underneath of the throttle assembly about 8-inches down, it is kinda difficult to see.Also it has an electrical plug attached to it. the sensor screws into the head parallel to the ground.

Why is my low coolant light flashing in my 1994 cutlass supreme s?

It could be low on coolant. It could have air in the cooling system and needs to be burped. It could be a fault low coolant switch or the associated wiring. There are 2 coolant locations. 1) there is an expansion tank (white plastic) connected to the radiator filler neck via a hose. 2) There is the radiator itself. Check the radiator by opening the radiator cap when the engine is cold. (no pressure in cooling system. ) Visually examine level or coolant -- should be at or near radiator cap neck. 3) on a '96 the coolant sensor is located on the left side of the radiator about 6 inches down from the top. A stop leak additive or debris in cooling system will fake out the sensor causing the light to flash. Solid on, coolant may actually be low in the radiator and the cooling system will need to be bled of trapped air. On the '96 there are 2 locations to bled with brass plug/screw. One in the pipe sending coolant across the front part of the engine. The second is a plug in the intake manifold on the right, topside. If the hose between the coolant recovery tank and the radiator leaks, then air will get into the system. Also if water pump seal fails, same problem.

Where is the radiator fan fuse on a Skoda felicia?

The radiator coolant fan fuse can be found in the fuse box. The radiator fan fuse will be in the second column, fourth from the top.

Study guides

Create a Study Guide