Question about 1996 Pontiac Firebird

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Overheated to the max. Tried runnin heater just to get home but no heat set on high. No visible overheating signs. Had to stop 2 times in 5 or 6 mile distance to get her home. Is it my thermostat? Its a 96 Firebird V6. If so where is the thermostat located? I know how to check them

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Another important thing or things to check when you are having issues with overheating is:

Fan Clutch (if applies)
Electric Fans (if applies)
A/C Condensor (in front of the radiator and this item catches the majority of bugs, dirt, et. Just because you put a new radiator you don't necessarily fix the problem. A condensor stopped up 50%-100% can cause overheatings issues)
Thermostat (cheap to replace)
Radiator
Water Pump
if you are going to replace everything above you might as well check the freeze plugs.

The thermostat is on top of the engine in front of the intake manifold towards the front of the engine. The upper hose should be connected to the neck. Never, attempt to remove the radiator cap or any other cooling system component while the car is hot. Always allow the vehicle to cool for a few hours before attempting to work on the cooling system. Most people like the way they look!

Posted on Aug 18, 2009

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Replace thermostat check coolant and radiator

Posted on Jul 22, 2009

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1 Answer

Car over heating and hoses springing leaks


Replace the radiator cap first (when it's cool and it's cheap). A coolig system needs pressure.

Next option is the thermostat. It is normally closed and will open at 180degrees (newer cars have higher temps). You can test by removing and then using your house stove and a pot of water see if the spring & valve open up as it gets near boiling. They are not very expensive either so it might be easier just to replace it as well. Make sure you run the heater at full to help get air out of the system.

If you check the oil and it looks high and weird then you could have a blown head gasket. This is much more $$$ to get fixed.

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Tip

Scania Fault Codes


000 00 No Fault
01 001 less than the rated voltage - heater works
02 002 higher than the rated voltage - heater works
004 03 Short circuit fan (D2I)
005 05 Short-circuiting the wires from alarm (D2I)
009 09 Heater off system TRS (D2I / D9W)
010 0A higher than the nominal voltage (heater stopped)
011 0B voltage less than the nominal (heater stopped)
012 0C overheat - fuel pump is turned off
013 0D temperature sensor recorded a high temperature
014 0E big difference values of t. Dutch. overheating and Dutch. regulation. t (D3W / D9W)
015 0F heater overheated many times - the heater is turned off (D2I / D9W)
017 11 Reusable overheating (t exceeds the second threshold) (D3W)
020 14 Candle / rod defective bulbs
021 15 Short candles / kernel bulbs
022 16 switch faulty lights / lamps kernel (D2W)
023 17 Internal defect relay control R2 candle / bar bulbs
024 18 Short-circuit switch controller candle / bar bulbs
025 19 Short-circuit diagnostic socket
029 1D fan air gap 5 does not operate R3
030 1E air fan does not work in all positions (R3-D3W)
031 1F air fan does not work in all positions (R3-D3W)
032 20 Air fan does not work in all positions (R3-D3W)
033 21 Air fan does not work in all positions (R4-D2I / D9W)
034 22 No contact with solenoid valve system COOL. (D2W / D9W)
035 23 No contact with the relay average performance
036 24 Short-circuit relay average performance
037 25 Do not rotate water pump (D2W / D9W)
038 26 No contact with the fan relay cab heating (D2W / D9W)
039 27 Short cab heating fan relay (D2W / D9W)
040 28 Short electromagnetic. COOLING valve system. (D2W / D9W)
042 2A Short circuit water pump (D9W)
043 2B Short cable from the computer to the heater fuel pump (D9W)
047 2F Short circuit of the fuel pump
048 30 No contact with the fuel pump
050 32 Heater run many times but have not worked (relay R3)
051 33 Flames emerged immediately after pressing the start button heater
052 34 No start (restart purge)
053 35 Stop flame during startup
36 054 Stop flame position max. productivity
055 37 Stop the flame in a position average performance
056 38 Stop the flame in the position of poor performance
057 39 Flame sensor short circuit (photoresist)
058 3A heater is turned off, but the flame in the combustion chamber (D2W)
059 3B Water temperature rising too quickly (D9W)
060 3C No contact with the sensor temperature control
061 3D sensor short circuit temperature control
062 3E No contact with the potentiometer (D2H / D2I)
3F 063 Short potentiometer (D2H / D2I)
064 40 No contact with flame sensor
065 41 Flame sensor short circuit
071 47 No contact with the sensor overheating (D3W / D9W)
072 48 Short-circuit overheating sensor (D3W / D9W)
073 49 Overheating sensor recorded the fastest increase in temperature (D9W)
090 5A Spontaneous error
091 5B high surge (high-voltage wires, CB-radio, etc.)
092 5C Faulty heater control unit - fault ROM
093 5D Faulty heater control unit - faulty RAM
094 5E Faulty heater control unit - fault EEPROM
096 60 Temperature sensor faulty heater ECU (D2I)
097 61 Faulty heater ECU (D2I / D2W / D9W)
255 FF cleared but faulty memory EEPROM

source
http://truckmanual.weebly.com/scania-fault-codes.html

on Dec 20, 2016 | Cars & Trucks

1 Answer

Symptoms bad thermostat


Did you check the water pump? That is what is sounds like.

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Engine overheated due to broken impeller. Repaired and no leaks found in head gasket by VW. 5 miles later Beetle overheated and towed back..


how could they check for head warpage if they didnt pull the head and put it on a plate? Im calling poor diagnosis.

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Engine overheated. Towed it home, removed thermostat and boiled it to see if it would open. It did not open. Reconnected radiator hose without thermostat and drove 5 miles. Temp guage held at normal for...


if you have cold air from your heater vents they you have air in your system. When your thermastat stuck you probably lost a lot of you coolant and if you didnt add any more i am sure thats your issue. just low on coolant now. When it goes to the heater core, there is nothing left to pump around the engine.

Good luck

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I have a 2002 Olds Intrigue; standard 3.5, 116K miles; Problems started with a minor water leak; first mechanic replaced the Throttle Body gasket; second did an extensive pressure test on the coolant...


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1998 Chrysler Concorde LXI with 174K miles. 2


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