Hello. On 08 pontiac g8 do I have to replace the whole thermostat housing if is leaking or could just get seals and change thermo
My car is leaking coolent looks like its coming from thermostat housing
My car has 157000 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hi there:
Today’s OEM parts are made to be cost-effective as opposed to help mechanics fabricate repairs to be honest with you. So, it’s probably a good idea to replace the entire housing for a few reasons. First, the thermostat is sealed correctly inside the housing, which will reduce the potential of ’mistakes’ on removing and installing the thermostat alone. Second, it’s actually more cost-effective to buy the housing with the thermostat and will save you time on the repair. The big thing to remember though is to ensure you research and follow Pontiac’s procedures for priming the coolant system after you complete this repair. Many mechanics fail to complete this step; which tends to create air bubbles and can create serious overheating issues. If you need a hand to replace the thermostat housing on your Pontiac, feel free to contact one of our mobile mechanics.
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The housing is just a piece that covers the thermostat that also has an opening for a radiator hose which is where the water enters and exits the motor. The housing may need to be replaced at times if it is cracked or leaks severely, however they are indeed two different and distinct pieces.
Some of the symptoms that let you know that the thermostat is bad or failing includes: the temperature gauge starts to read really high and the engine overheats. the temperature is changing in an erratic manner. the coolant will leak around the thermostat housing or under the vehicle.
Unexpected Air Temperature Changes
Erratic temperature readings in the instrument cluster will usually cause the thermostat housing to fail. If this happens, the wrong amount of coolant may be sent to the engine which in turn will cause the thermostat housing liquid to either underperform or over-perform.
Contrary to common belief, you don`t have to replace your entire heating, ventilation, and cooling (HVAC) system. You can typically just replace the outdated thermostat with a new thermostat – assuming the latter is compatible with your HVAC system.
Strange Sounds And Temperature Changes
You may hear rumbling, boiling, or knocking coming from the radiator. All these signs point to an issue with your car`s cooling system. The thermostat also affects the temperature of air that flows in your vehicle through the vents.
You should be able to turn on your heating or cooling system from the thermostat, or change operation back and forth from heating to cooling. If you make changes at the thermostat and get no response whatsoever from your furnace, air conditioner, or heat pump, it could mean the thermostat is bad.
A bad car thermostat can result in overheating and heater insufficiency. While these don`t seem serious, these symptoms of a bad thermostat can lead to permanent engine damage due to excessive heat – such as seal breakages, cracked elements, and engine detonation.
Modern home thermostats tend to have about a 10-year lifespan but are usually replaced sooner due to innovations in the market. Non-programmable thermostats have become outdated and replaced by programmable (or learning) thermostats.
However, most car experts recommend car thermostat replacement after 10 years. However, this is an optimistic number. Thermostats are more likely to stop working much earlier than a decade. Some factors that induce an early thermostat failure include harsh weather, rough driving, bad engine or thermostat parts.
As the engine heats up, the thermostat gradually opens, allowing coolant to reach the radiator. Whenever it begins to fail, the engine overheats and, if the problem is left unchecked, leads to your engine boiling over. This can lead to costly repairs.
Relevant Questions and Answers :
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Hello. On 08 pontiac g8 do I have to replace the whole thermostat housing if is leaking or could just get seals and change thermo
ANSWER : Hi there:
Today’s OEM parts are made to be cost-effective as opposed to help mechanics fabricate repairs to be honest with you. So, it’s probably a good idea to replace the entire housing for a few reasons. First, the thermostat is sealed correctly inside the housing, which will reduce the potential of ’mistakes’ on removing and installing the thermostat alone. Second, it’s actually more cost-effective to buy the housing with the thermostat and will save you time on the repair. The big thing to remember though is to ensure you research and follow Pontiac’s procedures for priming the coolant system after you complete this repair. Many mechanics fail to complete this step; which tends to create air bubbles and can create serious overheating issues. If you need a hand to replace the thermostat housing on your Pontiac, feel free to contact one of our mobile mechanics.
Are thse current and relevant prices for this service, and how long does it take? REPLACE AUX VACUUM PUMP (OIL LEAKING FROM A
ANSWER : Hi there. It really depends on who provided you with this diagnosis as to how long the repairs would take to complete. In regards to not including the seals listed at the bottom, this is not advised. The seals protect the components from leaking and will also reduce the potential of overheating on your vehicle.
Does the replacement of a thermostat include replacing the housing? I was told I needed to replace the thermostat housing.
ANSWER : Hi, thanks for writing in. The thermostat housing and the thermostat itself are two different components and do not necessarily need to be replaced together or at the same time. The housing is just a piece that covers the thermostat that also has an opening for a radiator hose which is where the water enters and exits the motor. The housing may need to be replaced at times if it is cracked or leaks severely, however they are indeed two different and distinct pieces.
Hope this helps and best of luck.
Rear Axle Seal Replacement – What type seal?
ANSWER : Hi there, thanks for writing in. I recommend buy the Toyota OEM part. Although we could go into high detail as to the precise technical differences amongst the various and competing aftermarket seals you are describing, such will not change the conclusion at all. Generally speaking, aftermarket parts are NOT as good as the factory OEM parts. Large car manufacturers spend hundreds of millions of dollars, indeed billions, developing the technologies used in these vehicles and ALL of the parts are extraordinarily carefully engineered to fit very precisely and perform specific functions. In the aftermarket, they try to duplicate that, but more often than not, it does not work. Toyota OEM quality in particular is not duplicated well, if not at all, in the aftermarket.
I have a leak in the coolant system that I have narrowed to I believe is the water inlet tube off of the lower radiator hose.
ANSWER : First off, I would say it would be best to pressure test the cooling system to verify where the coolant is coming from. With the complexity of repairs to the cooling system on this vehicle, it may be worth the time spent to pressure test the system before tackling the replacement. Now then, as far as replacing the o-ring seal on the water pump inlet tube, it should really only require the removal of the bypass hose, lower radiator hose, and the two (or three, depending on manufacturing changes) mounting bolts that hold the inlet tube to the block. I personally would go ahead and replace the tube while I was there, instead of just the o-ring. Granted, this doesn’t mention what it will take to get down to the inlet pipe, but this is all it should take once you have access to it. If this is something that you feel you could use a hand with, consult with a certified mechanic, like those available at YourMechanic.com.
Car diagnoses says bad thermostat and shop said they had to replace the whole housing system as it isn’t separate
ANSWER : I have verified that the thermostat is only replaced with the housing since the housing and thermostat are built together and not sold or replaced separately.
Is thermostat replacement necessary?
ANSWER : Hi There,
You may not necessarily need to replace the thermostat as a function of replacing the radiator. If the temperature gauge now remains at a normal level (in your case, below half way between C and H), you should be fine. You will want to pay attention to the fluctuation to be sure that it does not rise above the normal level.
We have a 2008 Dodge Magnum 2.7 and have replaced the thermostat and thermostat housing. However, the car is still leaking a good amount of coolant.
ANSWER : When there is coolant leaking from the weep hole on a water pump, the seal on the water pump is damaged and no longer can hold in the coolant. I recommend replacing the water pump. The weep hole is designed to allow coolant to flow out the water pump in the event the shaft seal gives out as an indicator to replace the pump prior to the shaft seizing up.
If you need further assistance with your coolant leaks, then seek out a professional, such as one from Your Mechanic, to help you.
