Question about 2009 GMC Acadia

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2009 acadia dash says engine hot AC on is this the thermistat engine temp still on dash is cold if so where is the thermistat located...I have not looked yet?

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Low on coolant- water pump leaking- see dealer for special warranty policy to cover this for free

Posted on Feb 17, 2014

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Posted on Jan 02, 2017

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SOURCE: I have no low beams on my 2009 Acadia. Fuses are

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emissionwiz
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SOURCE: '08 silverado. dash board diplays, engine running

P0128 OBD-II Trouble Code Technical Description

Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
What does that mean?

This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. The intent of the P0128 code is to indicate a faulty thermostat. Similar codes: P0125

In determining the engine did not reach a "normal" temperature, it takes into account the length of time the vehicle has been running, the intake air temperature (IAT) sensor reading, the engine coolant temperature (ECT) sensor reading, and the speed of the vehicle.
FB.init("dd7d9e9681341cde77587bc6a2029f6f"); OBD-Codes.com on Facebook Symptoms

You will likely not notice any drivability problems other than the MIL illumination.


Causes

A code P0128 may mean that one or more of the following has happened:

Possible Solutions

Past experience indicates that the most likely solution is to replace the thermostat. However here are some suggestions on troubleshooting and repairing a P0128 OBD-II code:

  • Verify coolant strength & level
  • Verify proper cooling fan operation (check if it's running more than it should). Replace if necessary.
  • Verify proper engine coolant temperature (ECT) sensor operation, replace if necessary.
  • Verify proper intake air temperature (IAT) sensor operation, replace if necessary.
  • If the above items check out good, replace the thermostat


Posted on Oct 26, 2010

  • 14036 Answers

SOURCE: 2009 gmc acadia engine light came on also message

HAVE VECHICLE CODE SCANNED.YOU HAVE PROBLEM THE THE EMISSIONS AND ENGINE EVAPORATIVE CONTROL SYSTEMS.

Posted on Jun 27, 2011

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My 2009 Gmc Acadia is blowing hot air in the front and cold in the back. Anyone know what could cause this it is not low on freon.


No it is not low on refrigerant, if that was the case you would not have any cold air front or rear.. There are many reasons for this condition, the system can be tested electronically and then you diagnose the fault shown with a scanner. You need the dealer on this issue.

Aug 31, 2016 | 2009 GMC Acadia

1 Answer

Wheres the coolant temperature sensor on a 2008 gmc acadia?


Usually located near the thermostat housing, screwed into the intake manifold. Should be two sensors, one having only one wire feeds dash light, one with two wires feeds computer to adjust fuel mix depending on engine temp.

Jun 06, 2015 | 2008 GMC Acadia

1 Answer

Why my acadia its blowing hot air when a/c is on


several reasons why ac not blowing cold. Most common a freon leak causing system to be undercharged. electrical and component failure may also be a factor. You need a set of gauges. find the compressor start engine with a c off the compressor clutch wont be engaged now turn it in on and see if clutch engages. If it engages you need to know what your low and high side readings are. You should have your system diagnosed be a seasoned pro...... If clutch does not engage you probably are low on freon. Put dye in the system so you know where the leak is when it leaks again. you can buy freon with dye already in it.

Jun 09, 2014 | 2009 GMC Acadia

1 Answer

Dash cluster says engine hot ac on is this the thermostat


Low on coolant- water pump leaking- see dealer for special warranty policy to cover this for free. Usually water pump

Nov 23, 2013 | 2009 GMC Acadia

1 Answer

2009 Acadia dash cluster says engine hot ac on. Is this the thermostat?


Could be, could also be lack of antifreeze , leaky hoses, radiator, heater core etc., etc.. Start with fluid levels>

Nov 23, 2013 | 2009 GMC Acadia

1 Answer

GMC Acadia AC not working properly


Not sure if I'm too late to answer this one, but you're describing a low refrigerant condition. The hissing noise and constant cycling of the compressor clutch are indicators of that. You should recover the system, record how much refrigerant was recovered, evacuate the system (with a vacuum pump), add A/C dye, and recharge the system to capacity. Common leak areas on these vehicles include the A/C condenser (located in front of the radiator), and the evaporator (located inside the dash, and requires complete removal of the interior dash to replace it). If you can't find a visible leak after running the recharged system with dye for several weeks and it starts to blow warm again, you will need to use an R-134a leak detector to "sniff" areas of the system for a refrigerant leak.

Apr 22, 2013 | 2009 GMC Acadia

1 Answer

Heat blows out air but does not get warm, any ideas?


If it is faulty, yes.
Does the temp gauge show the engine is warming up to normal temp ?
Is the radiator full of coolant ?
Are the heater hoses getting hot ?
It could also be a faulty blend door under the dash. The blend doors direct air thru the heater core and the vents.

Sep 28, 2012 | 2000 Ford Taurus

2 Answers

Where is the temperature guage located under the hood in my pontiac g6. I can not find it to replace.


The temperature gauge is actually a needle that read a range of Hot/Cold on the dash instrument cluster. If you are referring to the coolant temperature sensor, the location depends on the engine size. Post the engine size and we'll answer it better.

Oct 16, 2009 | 2006 Pontiac G6

1 Answer

My 1997 Honda Accord 4cyl. condenser fan began to run continuously (even after engine was shut off) after cycling the A/C temp. selector from hot to cold. I disconnect the condenser fan to avoid draining...


Sounds like the AC relay/switch is sticking on sometimes. Locate and swap this relay. Look at your fuse box lids for location or search online for the exact location. You also might have a leak in the ac lines or the AC condenser clutch is not engaging to kick the ac on. You should feel a slight power loss or hear a slight stutter in the engine when pressing your AC switch. This means everything kicked on. It's a millisecond before the ECU realizes this and kicks up the idle to compensate.

Sep 23, 2009 | 1997 Honda Accord

1 Answer

Fluctuating engine temp a/c sends out cold air intermittently


Here's the thing. The ECU will shut down AC if the engine temperature is too hot. If the coolant temperature sensor is malfunctioning (lying to the ECU) telling it that the temperature is hotter than it actually is, the computer will turn the AC OFF.

Sep 11, 2009 | Hyundai Motor 2003 Elantra

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