Q: 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

asked by on

My car is leaking coolent looks like its coming from thermostat housing

My car has 157000 miles.
My car has an automatic transmission.

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.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. 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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My car shows the Check Engine Light and DPF lights and coil light on the dashboard. What action should I take?

Hi. The EGR valve needs to be replaced and the passages to the EGR need to be cleaned. The EGR location is very tricky to get to so you may need a professional technician (such as one from YourMechanic) who...

Q: Do u add tranmission fluid in when transmission hit light comes on

Transmission fluid can be added when the engine is hot as long as you check for proper transmission fluid level correctly. Position the vehicle on a flat surface Set the gear into "Park" Set the parking brake on...

Q: Evaporating coolant

There are two things you might want to ask yourself. First, are you using a 50/50 percent ratio of coolant to distilled water? If not, this could cause the coolant to evaporate when it gets above 170 degrees. This is...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.