Question about 1996 Pontiac Grand Am

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My 1996 Pontiac Grand Am reads that the engine overheats about 10 minutes after starting it from cold up to 260 degrees. What can I do from here?

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The first thing to do is to make sure the radiator is full of coolant.If it's not, top it up and let the car run with the cap on loosely to remove air from the system and check for leaks. If it's full get a candy thermometer and double check the temp in the rad. It should read the same as your guage. If not change the temp sensor for the guage.also check to make sure that the fans kick in at about 190 degrees or a little more. If they don't there is a problem in the circuit, usually a sensor but double check to see if any if the wiring has been disconnected. If the fans come on, while you are checking the temp with the thermometer loking closely in the rad to see if the coolant is flowing. If you don't see movement then you need a new thermostat. That should be in the housing where the top rad hose comes out of the engine. Replace the gasket when you do it. Hope this helps.

Posted on Sep 13, 2009

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2 Answers

What is the average temp for a 1996 Pontiac Gran Am 2.4 L 4 cyl? Any info would greatly be appreciated.


the engine temperature is 195 degrees when ran for 15 minutes or more with the correct thermostat installed

Aug 18, 2011 | 1996 Pontiac Grand Am

1 Answer

Pontiac grand am 2002 overheats, temp, jumps from 200 to 260 degres only after cold start, if i turn of the engine for a few minutes, to cool down the engine, it will work fine for the rest of the trip


when cold loosen rad cap slightly and run until engine fan kicks in then carefully with rag remove cap and check level( don't worry it won't be under pressure.) and top up if needed check coolant reservoir level as well.than secure rad cap

Apr 25, 2010 | Pontiac Grand Am Cars & Trucks

4 Answers

The temperature gauge on my 2002 grand prix dose


the temperature sending unit on a 97 grand prix 3800 gt(which is also the coolant temperature sensor) is not accurate. the sending unit part of this sensor only sends info to the guage on the dash. the coolant sensor part sends info to the computer of the car. it is located under thermostat and somewhat difficult to get at. i had put a brand new one in and my temperature on my dash is all over the place---even with good thermostat and properly bled system. when i hook up a scanner to my computer, the coolant sensor is sending the computer(ecu??) what seems to be the right temp. anywhere from 194 degrees to 217 when hot. the guage however on dash go from 160 to 260 in less than 2 minutes.

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1 Answer

No warm heat comes out, just cold air


it is possible the thermostat is the problem, but if it is stuck closed the engine coolant temp gauge (if you have one) would show an overheat reading. most temps gauges will read 195 to 205 degrees. the other possibility is if you have an automatic climate control system, the blend door motor may have failed and will not adjust correctly to the temperature you have set for the interior

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1 Answer

1996 Pontiac Grand AM


Try this first, it takes about 30 min to do. 30-Minute Learn Procedure 1. Turn ON the ignition, with the engine OFF. 2. Attempt to start the engine, then release the key to ON; the vehicle will not start. 3. Observe the SECURITY tell tale light. After approximately 10 minutes, the light will turn OFF. 4. Turn OFF the ignition switch, and wait 5 seconds. 5. Repeat steps 1 through 4 - two more times - for a total of 3 cycles of 10 minutes. 3x10 = 30 minutes. The vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch turn from OFF to CRANK Important: Turn the Ignition Switch OFF. The vehicle learns the Passlock Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle. 6. Start the engine. The vehicle has now learned the Passlock Sensor Data Code and/or password. 7. With a scan tool, clear any DTCs if needed. History DTCs will self clear after 100 ignition cycles. Without a scan tool you may have momentary starter interruptions while history clears itself. Good luck and hope this helps, keep me posted, be glad to help

Jun 14, 2009 | 1996 Pontiac Grand Am

1 Answer

I have a 1996 grand am with a 3.1v6.. Starts great when cold but when the engine gets warm you can crank on it for 10 minutes with no start, unless you push the gas pedal about half way to the floor. then...


Check the fuel pressure regulator. Take off the vac line and check for leaking gas in the top of the regulator and the hose. If you see gas, replace the regulator.

Mar 03, 2009 | 1996 Pontiac Grand Am

1 Answer

1996 pontiac grand am


If you let it overheat for too long (and it doesn't take long) it is possible the engine block is cracked. Inspect underneath for fluids leaking onto the ground.

Aug 19, 2008 | 1996 Pontiac Grand Am

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