Where Is The Thermostat On A 1999 Honda Accord?

The radiator fan, a broken thermostat, or a coolant leak (water pump, radiator, hose, etc.) are the three most typical causes of an overheated Honda Accord.

How much does a Honda Accord thermostat replacement cost?

Replacement thermostat price range for a Honda Accord. Replacement thermostats for Honda Accords typically cost between $350 and $385. While parts are priced between $264 and $275, labor costs are predicted to be between $87 and $109.

What placement does the thermostat have?

where to find the thermostat The top radiator hose is directly attached to the housing, which is located under the thermostat in the majority of cars near the water pump on the cylinder head. The thermostat is sometimes located next to the bottom hose in autos.


One of the main faulty auto thermostat symptoms that can have severe repercussions is overheating the vehicle. The thermostat enables the engine to manage the heat once it has reached its typical working temperature.

What occurs if a thermostat heats up too much? When a car thermostat is malfunctioning, coolant cannot flow into the engine, which leads to overheating. Therefore, a malfunctioning thermostat is one of the potential explanations when this occurs.

Can a car be driven with a broken thermostat? The likelihood of the engine being permanently damaged rises if you keep driving the car in this state. For this reason, it’s critical to be aware of warning signals that the car’s thermostat is malfunctioning in order to be safe while driving.

Heater Malfunction

One of the causes of a broken car heater is locking the thermostat in the open position. Whether or not the engine is hot enough to require it, coolant will always run through it. The HVAC will continuously blow cool air if the thermostat is open and the car’s heater is turned on, even if the heater temperature is increased. In other words, the engine has an issue with being too cold rather than always going too hot.

Temperature Fluctuations

Strange temperature variations during engine operation are a sign of a broken thermostat. The thermostat won’t become stuck in this situation, but there will still be incorrect readings that affect control. The radiator coolant won’t flow normally, and the engine temperature will fluctuate erratically.

Poor Engine Performance

The performance of your car’s engine will be impacted by a malfunctioning thermostat because the engine operates best at a particular temperature? 90 to 104 degrees Celsius. Low engine temperature can also hurt the performance of your car’s engine, just as thermostat overheating might.

Rumbling Noises

You may start to hear rumbling sounds coming from your car, which is one of the obvious signs of a stuck open thermostat. The radiator, engine, or both may be making the noises. The sound can be described as a bubbling, boiling, or knocking sound. As a result, if you start to hear these noises or experience the aforementioned symptoms of a malfunctioning auto thermostat, your engine most likely has a bad thermostat.

What signs might point to a broken car thermostat?

The following are the primary signs of a defective or failed thermostat:

  • Engine overheating.
  • Issues Getting to Operating Temperature
  • Variations in temperature.
  • heating system changes.
  • Possible Engine Steam & Leakages
  • Expansion tank is full and temperature is rising.
  • Performance issues.

Why does my Honda Accord from 2001 constantly becoming too hot?

The thermostat for the cooling system may become damaged due to overheating, which will then result in more overheating. Therefore, one of the fixes to take into account is testing and replacing the thermostat. The burst hose, which is the source of the coolant leak you initially noticed, may have been the cause OR a result of overheating. To put it another way, overheating (caused by any issue) frequently raises system pressure to a point where it simply blows out the weakest connection, which may be an old, rotten hose. In that case, changing the hose has no effect, and after the replacement pipe is in place, the overheating simply resumes. The most frequent causes of overheating include low coolant levels (including those brought on by leaks), malfunctioning thermostats, blocked radiators, leaky radiator pressure caps, collapsed hoses, inoperative cooling fans, and defective water pumps or drive belts. Engine overheating can also be brought on by specific engine issues, such as a leaking head gasket, poor engine performance, or exhaust obstructions. Vacuum leaks (at the misfiring cylinder(s)) or fuel and ignition system issues are the causes of individual cylinder misfiring. The diagnosis is then limited to the afflicted cylinder(s) and the firing trace is used to assist determine whether the underlying issue is fuel or ignition. Secondary (high voltage) spark plug firing patterns are examined using an automobile scope in each of the four cylinders. Your issue is fixable, so I advise you to start with an engine overheating diagnostic. The answering professional mechanic will handle the rest, resolving all problems simultaneously. Please don’t hesitate to get in touch with YourMechanic again if you have any additional queries or worries; we’re always happy to help.

How long does a thermostat on a Honda Accord last?

The radiator in an automobile won’t always quit functioning. However, after ten years, the majority of automotive specialists advise replacing the automobile thermostat. But this is an optimistic figure. The likelihood of a thermostat failing significantly sooner than ten years is higher.

Harsh weather, severe driving, defective engine or thermostat parts are a few causes of an early thermostat failure. If the thermostat develops a problem, you should either have it checked out or have it replaced as soon as possible. Unchecked thermostat failure can rapidly cause engine overheating, lowering engine quality and efficiency. In order to increase the lifespan of car parts, maintenance programs must be established.

How long does it take to replace a car’s thermostat?

Most thermostat replacements take around an hour, but some just take 30 minutes. It may take a bit longer to complete more difficult replacements when a part is hard to reach or has become dangerously trapped.

What occurs if the thermostat is left open?

The engine will run cold if the thermostat becomes stuck in the open position because coolant will continuously flow into the radiator. Engines that are overcooled operate inefficiently, resulting in higher fuel consumption, more noxious emissions, and more wear on engine components.

Can I change my thermostat on my own?

You can install or replace your thermostat yourself and save some money, but you’ll need: Basic electrical knowledge. an understanding of the equipment being used in general.

Can you change a thermostat in a car by yourself?

The thermostat (also known as the T-stat) can be replaced at a low cost. Most of the time, it will fix an overheating or no-heat issue, saving the time and money required for professional diagnostics.

Is it challenging to adjust a thermostat?

When determining whether to hire a professional thermostat installation firm or do the thermostat installation yourself, there are a number of crucial factors to take into account in addition to the overall cost.

In reality, replacing a thermostat typically involves unplugging the old one, attaching a new one with the exact same wiring, and installing the new one in the same location on the wall. This installation may be completed quickly, is comparatively simple, and does not need scheduling an appointment or waiting for a technician. However, the task may become far more challenging if the wiring connecting the thermostat to the furnace is damaged or is merely missing a wire required to connect a smart thermostat.

Without a thermostat, the heating and cooling system cannot be operated, thus hiring a professional to ensure the installation is done correctly may be preferable if you lack the necessary skills. You can rest easy knowing that you won’t be left on your own attempting to figure it out while sweating or freezing because these firms will often include a specified time limit within which you can call them back if something goes wrong with the thermostat.

Can you operate a car with a malfunctioning thermostat?

The temperature indicator is one of the first things you’ll notice is higher than usual. It might even begin to vary often. Your thermostat is experiencing damage as a result of overheating if you see the gauge hanging around 3/4 of the way from the top. Your car’s engine may rapidly overheat as a result of this. You’ll want to prevent this from happening. If your automobile does get too hot. Don’t freak out. Simply stop and consult our blog post What to Do If My Car Overheats. If the thermostat is jammed open, you could find that your engine struggles to maintain a proper operating temperature. This indicates that it will take more time for the car to warm up.

Can I Still Drive with a Bad Thermostat?

No is the simple reply to this query. Even while your car could technically be able to move and bring you from point A to point B, you shouldn’t drive it. Especially if the engine is overheating, this could do extra harm to your car. To have your car fixed, you need bring it to a servicing facility.

How can I tell if my thermostat or water pump is malfunctioning?

How can I tell if my water pump or thermostat are malfunctioning?

  • Overheated engine.
  • changes in temperature gauge readings.
  • Your car’s front end is dripping with coolant.
  • Your car’s front is emitting steam.
  • Pulley on water pump nosed or loosened.
  • Around the thermostat housing, coolant seeps.

How do you determine when to replace your thermostat?

signs that a new thermostat is needed

  • The heating or cooling system won’t switch on or off.
  • The thermometer’s reading is off.
  • recently increased energy costs.
  • frequent changes in temperature.
  • The thermostat is at least ten years old.

The check engine light might turn on if the thermostat fails.

The thermostat being stuck in either the open or closed position causes the most obvious problems. Your check engine light may illuminate as a consequence of a fault code produced by the engine’s computer.

When should I change the water pump in my Honda?

The timing belt and water pump on your Honda should typically be inspected and/or replaced every seven years or 60,000–100,000 miles, according to the Honda maintenance plan.