Why does my Pontiac Grand Prix keep overheating?

Why does my Pontiac Grand Prix keep overheating?

Pontiac has located this device there and all your major grounds join here. The mounting plate attached to it becomes corroded which interferes with the grounding signal from the computer to turn on the cooling fans. The bolt that held it in place was actually so rusty that the head of the bolt had broken off as I removed it.

Why does my 1999 Grand Am not overheat?

Fans on my 1999 Grand Am four-cylinder car will not come on car is overheating help please Hi my name is Rodney i have 04 grand am 3.4 go to pfyc.com they have a capers hi speed fan switch its about $100 it’s comes with built in relays u can turn ur fans on manually and it won’t interfere with ur control module takes about 30ins to install

Why does my car’s water pump keep overheating?

If you don’t see this the water pump may be faulty, a broken impeller perhaps. BE CAREFUL because as the coolant heats it will expand and flow out of the neck of the radiator. You only need to see the movement to prove that it is flowing. Switch off the engine as soon as you see the coolant flow in the neck of the radiator.

Why does my car keep blowing hot air?

Not blowing hot air in cab could indicate faulty valve that opens to allow coolant to flow through heater radiator in cabin. A check that you could do is with a cold engine, remove the radiator cap and then start the engine and allow it to warm up. Observe the coolant in the neck of the radiator.

Why does my Chevy 3.4 keep overheating?

This is not an awnser but i have had 7 chevys with the same problem. (that includes pontiac) the 3.4 and 3.1 have a disconnect from the temp switch to pcm or pcm to the relay.

What kind of car is the Pontiac Grand Am?

The Pontiac Grand Am is a mid-size size (and later compact) car produced by Pontiac. The 1999-2005 generation is the final generation of the Pontiac Grand Am. Why dose my car keep overheating?

Pontiac has located this device there and all your major grounds join here. The mounting plate attached to it becomes corroded which interferes with the grounding signal from the computer to turn on the cooling fans. The bolt that held it in place was actually so rusty that the head of the bolt had broken off as I removed it.

Where does the coolant go in a water pump?

1. Coolant Leak at the Front-Center of your Car. The water pump is comprised of multiple gaskets and seals that keep coolant contained and ensure that consistent flow of coolant is delivered from the radiator to the engine.

If you don’t see this the water pump may be faulty, a broken impeller perhaps. BE CAREFUL because as the coolant heats it will expand and flow out of the neck of the radiator. You only need to see the movement to prove that it is flowing. Switch off the engine as soon as you see the coolant flow in the neck of the radiator.

Fans on my 1999 Grand Am four-cylinder car will not come on car is overheating help please Hi my name is Rodney i have 04 grand am 3.4 go to pfyc.com they have a capers hi speed fan switch its about $100 it’s comes with built in relays u can turn ur fans on manually and it won’t interfere with ur control module takes about 30ins to install

1. Coolant Leak at the Front-Center of your Car. The water pump is comprised of multiple gaskets and seals that keep coolant contained and ensure that consistent flow of coolant is delivered from the radiator to the engine.

What happens if your car overheats on the road?

An overheating engine is more than an inconvenience, it can be an expensive engine killer. It may even leave you on the side of the road then on to the repair shop for a serious repair bill.

This is not an awnser but i have had 7 chevys with the same problem. (that includes pontiac) the 3.4 and 3.1 have a disconnect from the temp switch to pcm or pcm to the relay.

Why does dose my car keep overheating?

If you turn on the AC yhe fans will run and if you unplug the temp switch the fans will run but you will have hard shifting in the trans because it gets info from the temp switch. I belive the problem is in the pcm not the harness as so many cars have that same issue.

How can I Stop my Car from over heating?

I used a circular wire brush attached to my drill to remove the corrosion from the back plate. Used the same brush to create a new bear metal spot on the fender and a self taping screw to reattach it. No more over heating from there on, Fans triggered and varied speed as they should.

What causes a car fan to run all the time?

If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times. Depending on the wiring setup of the vehicle, this may cause them to stay on even when the vehicle is off, which will drain the battery.

The Pontiac Grand Am is a mid-size size (and later compact) car produced by Pontiac. The 1999-2005 generation is the final generation of the Pontiac Grand Am. Why dose my car keep overheating?

What to do if your Pontiac Grand Prix heater stops working?

If the heater has stopped working in your Grand Prix, this process has failed in one way or another. A word of caution: If there is no coolant in your overflow, you can refill it by adding more to the overflow reservoir. There is almost never a situation where you would need to take the radiator cap off of the radiator to add coolant.

Why does my Pontiac Grand Am keep overheating?

I gotta 1999 pontiac grand am se 3.4 it ran ok when I first got it then seripeteen belt broke overheated a lil had problems since.got belt fixed then had problems with the fans not wrking also so hooked them up direct an found out outta 2 fans one wrked.

Why does my car run hotter in the Grand Prix?

While not having enough coolant may make your engine run hotter, it can also cause your Grand Prix to not be able to create enough heat. Is there isn’t enough line pressure, due to low coolant, then the heater core will not be able to get any coolant itself.

Why is the thermostat on my Grand Prix not working?

The job of your Grand Prix’s thermostat is to regulate the temperature of the engine. It does this by allowing water to enter the engine when it is getting hot, and by keeping coolant from entering while the vehicle warms up. Sometimes when a thermostat goes bad, it stays stuck open. This allows the coolant to continuously enter the engine.

Not blowing hot air in cab could indicate faulty valve that opens to allow coolant to flow through heater radiator in cabin. A check that you could do is with a cold engine, remove the radiator cap and then start the engine and allow it to warm up. Observe the coolant in the neck of the radiator.

Why is the coolant in the neck of the radiator?

Observe the coolant in the neck of the radiator. After a while when the engine warms the thermostat will open and you should see the coolant start to “flow” (or swirl) in the neck of the radiator indicating that it is being pumped through the system. If you don’t see this the water pump may be faulty, a broken impeller perhaps.

Observe the coolant in the neck of the radiator. After a while when the engine warms the thermostat will open and you should see the coolant start to “flow” (or swirl) in the neck of the radiator indicating that it is being pumped through the system. If you don’t see this the water pump may be faulty, a broken impeller perhaps.

Where is coolant temp sensor on GM 3800?

Coolant Temp sensor (ECT) 9. Evap Purge Solenoid Typical engine data sensor and control component locations on the GM 3.8L 3800 v6 engine. Exact location may vary depending on vehicle year / make / model. Click on a number for a description of the component. A few related auto repair questions and answers.

Why does my car overheat when I Turn on the heat?

By a large margin, the most common cause for engine overheating is simply a low coolant level. Your engine’s cooling system relies on coolant to circulate and remove heat from the engine. If you don’t have enough coolant in there to do the job, heat will build up and your engine will overheat.

What to do if your car is overheating on a short trip?

Any of the above causes for overheating on short trips. The car is overloaded or being driven too hard. The Fix: Lighten the load and back off the gas. The radiator or block may be clogged. The Fix: Reverse flush the cooling system and fill with fresh coolant.

How much horsepower does a Pontiac Grand Prix have?

The new Grand Prix sought to deliver performance as attention-getting as its styling, with increased installation percentages for manual transmissions and engine options up to the 390 hp (290 kW) 428 HO.

What are the parts for a Pontiac Grand Prix?

With a supercharged V6 and plenty of horsepower hidden in their engines, these sedans offer you the best of every world – luxury, style and power. PartsForYourCar has a whole section dedicated to offering you the best Pontiac Gr …read more

What was the performance of the 1973 Pontiac Grand Prix?

1973 Pontiac Grand Prix All A-bodies, including the Grand Prix, were redesigned for 1973. This generation was larger and heavier, due partly to the federally mandated 5 mph (8.0 km/h) crash bumpers. Although large V8s were still available, the performance was on the decline due to new emissions control systems.

What to do with a 1997 Pontiac Grand Prix?

PFYC.com offers several levels of protection and coverage for your 1997-2003 Grand Prix. These are custom fit covers specifically designed a more >> The Pulley Boys Supercharger Pulley is the highest quality, best engineered aftermarket pulley available. Add more boost and horsepower wit more >>

What should coolant temp be when engine is hot?

With a good OBD2 code reader, you can also check the live data and the parameters of the CTS sensor. Check that the temperature value of the CTS is around 80-90c when the engine is hot. A lot of engine coolant temperature sensors have two wires and the sensor is controlled by Ohm.

When does your car run hot or cold?

If you are like most drivers, our guess would be almost never.  Most drivers look at their temperature gauge so rarely that many vehicle manufacturers don’t even include temperature gauges any more but just lights that will come on if your car is either extremely cold or extremely hot.

 If you are like most drivers, our guess would be almost never.  Most drivers look at their temperature gauge so rarely that many vehicle manufacturers don’t even include temperature gauges any more but just lights that will come on if your car is either extremely cold or extremely hot.

Why does my Pontiac Grand Prix not start?

26 people found this helpful. When your car starts fine cold, then fails to restart while warm, it is usually a coolant system problem. Either low coolant, or bad coolant level sensor. 26 people found this helpful.

What causes Trac off on a Pontiac Grand Prix?

The “Trac Off” failures are usually a wheel speed sensor which is off the BCM not the ECU. — It seems like it might be a flaky ECU but I’m just guessing. 10 people found this helpful. Have you checked the fuel pressure? Could be ECU as mentioned above or possibly dirty injectors or fuel pump.

What kind of engine does a Pontiac Grand Prix have?

Outstanding design defines the 2001 Pontiac Grand Prix! An awesome price considering its low mileage! All of the following features are included: front dual-zone air conditioning, tilt steering wheel, and much more. It features an automatic transmission, front-wheel drive, and a refined 6 cylinder engine.

What do you mean by temperature gauge is fluctuating?

Temperature gauge is fluctuating, sometimes showing overh… Q: Temperature gauge is fluctuating, sometimes showing overheating.

When to replace a water pump or thermostat?

Thermostats do have a limited lifetime and, in fact, are changed as a matter of course, as a precaution and as cheap insurance, whenever major work is done on the cooling system. So, if it turns out you need a water pump, undoubtedly a good mechanic will recommend that you install a new OEM (not aftermarket) thermostat.

Why is my water pump on my Jeep Grand Cherokee leaking?

Water leaking from around your Grand Cherokee’s water pump is a sure indication that the water pump could be bad. It could be the water pump or the water pump gasket causing the leak. You have to pull the water pump to replace the gasket.