Question about 2000 Pontiac Grand Am GT
When crank car to start gauge jumps to 260 then drops to cold and doesnt move .fan kick on as soon as car starts
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Posted on Jan 02, 2017
SOURCE: Overheating and heater not work
there is a valve on the water pump and one on the thermostat housing open those up one at a time until you get a little bit of antifreeze come out then tighten them back up. All you will be doing is bleeding the air out of the cooling system. my car was doing the same thing after I changed my thermostat.
Posted on Dec 12, 2008
is this a supper cahrged grand prix if so check fuel pump resistor located behind right front head light or on fire wall its made of white ceramic has to wires going to it jump the two wire on the connection going to it if it runs longer then 15 min then replace resiustor.
Posted on Jan 03, 2009
It sounds to me like you're low on coolant. When you checked the coolant level, did you actually open the radiator cap and make sure the radiator is full? The plastic tank you generally add coolant too is actually an 'overflow' or 'reserve' tank. There is a hose that runs from that tank to the top of the radiator so if the radiator gets low on coolant, more coolant -should- run in from the overflow tank. However in practice this does not always work. I have a Jeep that leaks coolant and experiences this exact same problem. Coolant will not run from the reserve tank into the radiator because the hose is plugged up, and whenever the radiator gets low on coolant the temp gauge will go real high and then drop, and the heater doesn't work well. This is because the cooling system of your car is supposed to be a closed system, full of coolant and no air. When coolant leaks out, the space it used to occupy is now occupied by air, which does not transfer heat well. When 'air' is passing through your cooling system, no heat can be transferred from your engine to the heater and radiator, resulting in a hot engine and no heat at the heater. Then when a pocket of water passes through the system, the temperature gauge quickly falls as the water absorbs the heat from the engine. The hot water that cools the engine is where the heater gets it's heat from as well, so when water passes through the heater core, the heater works, but when it's filled with air, it doesn't.
Posted on Feb 12, 2009
SOURCE: Temperature sensor problem?
There are 2 different circuit that control the cooling fans.
The engine controller turns the low speed fan circuit on to control temperature and turns on the high speed fan circuit if the engine and A/C is running.
It sounds like your low speed fan function is not working.
Find your fan 1 fuse located in the under hood fuse panel and make sure it is not blown. If OK go to next step.
Find your fan 1 relay located in the under hood fuse panel. Find another relay in the fuse panel that matches and swap the two. If the fan then works you know you have a bad relay.
If both are check good, let me know and we will go from there.
Below, I have attached the wiring diagram for your cooling system, hope it helps.
Posted on Mar 27, 2009
SOURCE: Radiator Fan's Run All The Time
There are 2 things that will cause this to happen. 1. The thermostat needs to be replaced and, 2. The coolant sensor can be bad. When I had this problem, I changed them both at the same time, she been just fine since then. Also, I had the check engine light on, and got the code from AutoZone (it's free!)
Posted on Apr 15, 2009
Tips for a great answer:
Jan 14, 2015 | Toyota Cars & Trucks
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Nov 28, 2012 | 2000 Mitsubishi Lancer
all voltages checked ok, then most probably its faulty instrument cluster board
on which gauges are connected. Yes if cluster circuit board looks ok, then also
it can be faulty. Somewhere there is minute short or burn on board then such
check the fuse box. One under hood and other under dash.
each and every fuse and see if all are fine or not.
more troubleshooting on these cluster gauges I suggest you to refer the list of
help links mentioned below. Its step by step instructions will help you to
confirm the exact cause of problem in these conditions: ---------
the link below: ------
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details will help.
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