My car runs hot all the time ever since I bought it??

I have a 2002 Acura rsx type s and I noticed that ever since I bought it the temperature needle stays above the middle line and is near the H symbol,it's never over heated before and I've driven it long distance before, lately it's been sucking coolent and I even noticed a coolent puddle on the floor so I replaced the radiator and got some brand new hoses,cap, and coolent lines, a new thermostat,as well as the proper coolent from the factory. I noticed that there was coolent as far as where the belt is and there was some coolent on the water pump and all over the ac compressor,My t
Experienced mechanics share their insights in answering this question :
Hello. An engine that runs hot can be caused by many things. A few common causes are air in the system, a stuck thermostat, or a bad water pump. The first thing I would do is double check and make sure that all the air is properly bled from the system, including the heater core. If any air bubbles remain trapped in the system, they can cause pockets of heat, which can lead to overheating.

A stuck thermostat can also cause an engine to run hot if it sticks closed and restricts the engine’s coolant flow. It may also be possible that the water pump impeller has worn out, and is no longer providing the cooling system with enough flow, causing it to run hot. I would start by making sure the system is bled and going from there. If you need help having this taken care, a certified professional from YourMechanic can come to your car’s location to diagnose the overheating issue and proceed with the correct repairs.

How to Identify and Fix Common car Problems ?

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There are two main causes for engine overheat: The coolant does not flow through the system like it should. There is not enough air flowing through the radiator.
An overheating engine tells you that your car needs attention ASAP. Read below for the most common reasons a car would overheat: Cooling system leak — A leak in your car`s radiator, hoses, water pump, head gasket, or thermostat housing may cause overheating.
A cooling system leak is the most common cause of an overheating engine. The leak could spring from your hoses, your water pump, your coolant tank, or your radiator itself, so closer inspection is needed if you see that your coolant tank has gone dry. Using the wrong coolant could also get you into trouble.
The most common reasons an Acura RSX is overheating are a coolant leak (water pump, radiator, hose etc.), the radiator fan, or a failed thermostat. Coolant leak (water pump, radiator, hose etc.)
If you notice that your engine overheats, the coolant temperature sensor could be the problem. At times, the coolant temperature switch may fail such that it starts transmitting hot signals permanently. This causes the computer to erroneously counterbalance the signal, thereby causing the engine to misfire or overheat.
The most common reasons for your car temperature gauge going up but not overheating are due to temperature sensor failure, a broken temperature gauge, engine control unit failure, corrosion in connectors, or damaged wires feeding to the sensor or gauge.
Engine Overheating

While sometimes a faulty sensor sends a permanent cold signal to the engine, it can also send a permanent hot signal. The computer will again miscalculate the signal and cause the engine to heat up instead of cooling it down.

Why is my car overheating but it has coolant in it? It could be that the coolant concentration is not correct, or you may have a bad thermostat, a failed water pump, broken drive belt, or a bad radiator or radiator fan.
It gets even more concerning and confusing when car overheating suddenly returns to normal. This phenomenon can happen for many reasons, like a bad thermostat, a faulty radiator, or a coolant leak. As such, it`s best to get your car checked by a professional— like RepairSmith!
Why is my car overheating but it has coolant in it? It could be that the coolant concentration is not correct, or you may have a bad thermostat, a failed water pump, broken drive belt, or a bad radiator or radiator fan.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Replaced alternator on car 2 times each time shows it’s charging 14v let car run for a little bit then test drive and car voltage
ANSWER : There are reports that the replacement alternators will not communicate with the engine computer and will not charge correctly. I recommend using only the manufacturer approved replacement part. It can be new or remanufactured but approved for use in the vehicle. Some lower cost alternators on the aftermarket will have charging problems since they will not communicate with the ECM on the vehicle and will stop charging.

My car is running hot, what could be the problem?
ANSWER : There could be an issue with the cylinder head gaskets. Antifreeze can break down and become acidic if not replaced as normal maintenance. The head gasket material erodes and can cause engine compression to build up in the coolant system. This will prevent the flow of coolant which can create an overheating condition.

There is a test that can be done to check whether there is carbon monoxide in the coolant system; it involves special equipment.

I recommend having your overheating condition inspected, and perhaps have a block test performed.

Car runs hot and doesnt keep coolant
ANSWER : Hi there. Most of the time, overheating issues are caused by a radiator leak, leak in the coolant lines, or a failed thermostat. The worse case scenario is that you’d have a blown head gasket.

However, if you’re seeing small drips on the ground, the leak could be coming from one of the hoses, which might also introduce air pockets into the coolant line. This could be what’s causing your overheating situation. However, it might be a good idea to have a local certified mechanic stop by your home to do a complete cooling system inspection. That could save you a lot of money instead of replacing parts that you are unsure are faulty.

My car runs hot all the time ever since I bought it??
ANSWER : Hello. An engine that runs hot can be caused by many things. A few common causes are air in the system, a stuck thermostat, or a bad water pump. The first thing I would do is double check and make sure that all the air is properly bled from the system, including the heater core. If any air bubbles remain trapped in the system, they can cause pockets of heat, which can lead to overheating.

A stuck thermostat can also cause an engine to run hot if it sticks closed and restricts the engine’s coolant flow. It may also be possible that the water pump impeller has worn out, and is no longer providing the cooling system with enough flow, causing it to run hot. I would start by making sure the system is bled and going from there. If you need help having this taken care, a certified professional from YourMechanic can come to your car’s location to diagnose the overheating issue and proceed with the correct repairs.

Car shuts off, won’t stay running
ANSWER : The most common problem on this vehicle is the fuel pump and fuel pump module. If you remove the rear seat that the fuel pump cover is, on the passenger side. Listen to the fuel pump when it is running and when the car stalls your fuel pump will stop running about three to five seconds before the engine dies. Then you’ll know if the fuel pump is the culprit or not.

You can try and replace the fuel pump module first then replace the fuel pump. However, the fuel pump can short the module out, causing both to be bad and would need to be replaced. If you need assistance with this, feel free to contact a certified mechanic who can diagnose your starting issue firsthand and help you fix it accordingly.

Power steering loss, no belts are turning but the car is running fine. I also have a soft pedal. Whats wrong with my car?
ANSWER : I have only seen this situation once in my 30+ years and it turned out to be a broken crankshaft pulley. Belts are driven by the engine. The crankshaft pulley spins the belts, which in turn spin the air conditioner compressor, power steering and water pumps, and the alternator. The vehicle should be towed to your local repair shop and not driven. Without the water pump spinning to circulate the coolant, the engine will quickly overheat and result in more extensive damage.

Fuel EVAP line that runs under car is kinked how do I know if it is leaking? Also can I drive it like that if it’s not leaking?
ANSWER : Hi there. In most cases, an EVAP leak will create an OBD-II trouble code, which is the best way to detect an EVAP leak. By having a professional mobile mechanic complete a check engine light inspection, they will be able to download the code and determine the source of the leak. In most cases, it’s an EVAP purge solenoid that is faulty.

Car runs hot replaced the thermostat still running hot whats the problem
ANSWER : Overheating can be caused by a number of things such as low coolant levels, a faulty thermostat, a clogged radiator or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this switch is not working properly, this can cause the fans to come on intermittently, all the time or sometimes not at all. When this happens you will notice a temperature spike and drop occasionally as the fan comes on and off. When your thermostat is not working properly or is stuck closed, this will not allow the coolant to properly circulate through the engine, which may cause the engine temperature to fluctuate erratically or in some cases just remain hot. You may also have a water pump that is beginning to fail. Water pumps often times will begin to produce a bit of a whining sound when they are starting to fail. A common problem also associated with this is the water pump may begin to leak around the water pump shaft due to the seal being damaged. In addition to leaking around the pump, you may have a leak elsewhere in the cooling system coming from one of the hoses going to or from the radiator. Lastly, you may have a failing cylinder head gasket allowing coolant to leak from the water passages into the cylinders resulting in the coolant being burnt in the combustion chamber with the fuel. If this is the case, you may also notice a bit of white smoke coming from your exhaust which is a product of the coolant being turned into a steam like vapor. I would suggest having an expert from Your Mechanic come to your home to diagnose your cooling system.