How to tell if the thermostat in your car is bad?
Symptoms of a Failing Car Thermostat
- The temperature gauge reads high and the engine overheats.
- The temperature changes erratically.
- The vehicle’s coolant leaks around the thermostat or under the vehicle.
Where do I find the trouble code on my Pontiac?
These are listed in numerical order for easy searching. When retrieving Pontiac trouble codes with an OBD II scan tool, proceed as follows: 1. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. The connector may have a removable cover. 2. Turn the ignition on. 3.
What does p0128 mean on a GM thermostat?
In some GM cars when the code P0128 is set, the temperature gauge stops working and the radiator fans run constantly. Replacing the thermostat often solves the problem unless there are some other issues.
When did the Pontiac Grand Am Come Out?
The Pontiac Grand Am came on the scene in the 1970s, but it wasn’t until the 1980s when it became the Pontiac of choice for new-car buyers. It’s affordable, attractive and offers a nice array of options. The last generation of Grand Am was produced from 1999 through 2005 with either an economical 2.4L four-cylinder or the more powerful 3.4L V6.
Why is the thermostat on my Grand Prix not working?
Grand Prix Thermostat Wiring – If the thermostat itself isn’t the problem, it’ll be the wiring/sensor associated with engine water temp detection, or the coolant temperature sensor itself. If playback doesn’t begin shortly, try restarting your device.
Why is my Pontiac Grand Prix coolant not working?
It is triggered when your Pontiac Grand Prix ‘s coolant temperature fails to reach the proper operating temperature. It’s a generic powertrain code, which means that regardless of who manufactured the vehicle, it’ll have the same meaning (1996+).
How does the cooling system work in a Grand Prix car?
The cooling system inside of the Grand Prix 3.1-liter engines comes equipped with a spring-loaded thermostat that opens and closes according to the temperature of the antifreeze. The thermostat has a bottom spring that compresses and opens the top of the thermostat to allow the antifreeze to flow through the engine block.
Is the Pontiac Grand Prix p0128 Too Cool?
P0128 is not a serious threat to the immediate drivability of your Grand Prix. It should be noted that most modern fuel injected engines to like to run at 200+ degrees. Letting them run too cool can problems after an extended period of time.