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Coolant temp is always low - 2002 Pontiac Grand Prix

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Need someone to check your thromastat may need replaced

Posted on Mar 27, 2013

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Temp gauge in 98 pontiac wont work is there a fuse for it


Hi Tammie, Is the coolant level low ? If not , The engine coolant level switch grounds the indicator with the coolant level in the coolant reservoir below the minimum recommended level. The engine coolant level indicator module is on the right side of the radiator just down below from the radiator cap !
Low Engine Coolant Indicator Always On

Step

Action

Value(s)

Yes

No

1

  1. Disconnect the engine coolant level indicator module connector.
  2. Turn the ignition switch to the RUN position.

Is the low coolant warning indicator ON?
--
Go to Step 2
Go to Step 5

2

Inspect for a short to ground in CKT 68.

Does a short to ground in CKT 68?
--
Go to Step 3
Go to Step 4

3

  1. Repair the short to ground in CKT 68.
  2. Inspect the system.

Is the repair complete?
--
System OK
--

4

  1. Replace the instrument cluster. Refer to Instrument Cluster Replacement .
  2. Inspect the system.

Is the repair complete?
--
System OK
--

5

  1. Replace the engine coolant level indicator module. Refer to Coolant Level Module Replacement in Engine Cooling.
  2. Inspect the system.

Is the repair complete?

Feb 01, 2015 | 1998 Pontiac Grand Prix

1 Answer

It will run fine for a while after reaching operating temp but then shuts off and will not restart till cool again . 3.1 V6 also low collant light is on always but is not low.


need to check for ignition fire and fuel pressure the next time it shuts off. the fuel pump or the ignition module is getting hot and kicking off. as for the low coolant light, you have a bad coolant level sensor. the sensor can either be in the coolant reservoir or on the right side of the radiator about 6 inches from the top in the plastic part of the radiator.

Aug 01, 2011 | Chevrolet Lumina Cars & Trucks

2 Answers

Low coolent temp. Check engine light on


get the code but i bet its the temp control sensor.

Jan 21, 2011 | 2004 Buick Rainier

1 Answer

I have a 2006 ford fusion, yesterday the check engine light came on as I was driving at highway speed...I went to auto zone and the code read as 128 "coolant temp is always low". The coolant...


the part store you went to can clear the code
however, being LOW in coolant will cause over temp
you concern is probably a defective thermostat or defective CHT

Nov 01, 2010 | 2006 Ford Fusion

1 Answer

Check engine code po125 - 97 GP 3.8 - heater blows cold as engine temp rises to redline, then kicks in HOT and engine temp drops to normal... REPEAT. Is this the code for coolant temp sensor? Where is it...


What your describing is either a sticking thermostat, a low coolant condition or a blown cylinder head gasket.The code is for coolant temp fault.Not always the temp sensor but it is located next to the thermostat housing.

Apr 17, 2010 | 1997 Pontiac Grand Prix

2 Answers

The blower motor and AC works but the heater doesn't in a 2002 bonnieville Pontiac. I turn on the AC and it works fine. I switch over to the heat and it just blows cold air.


if your vehicle has the electronic climate control, it is probably the blend door motor/actuator that has failed and is stuck at the temp that was last entered in the climate control unit when it failed. this can be a very time consuming repair to do as it is under the dash. the other possibility is your coolant level is low and not allowing the heater core to bring the outside air up to the temp you want. if that is the case,your low coolant temp sensor should have come on. if not, then the thermostat could be either stuck open or closed. if stuck open the engine would not always show the temp gauge at normal operating temp of 195-200 degrees. if stuck closed the engine should be overheating according to the temp gauge. you did not mention what the operating coolant temp was!

Oct 14, 2009 | 2002 Pontiac Bonneville

1 Answer

I am getting a P0128 code on my OBDII scan, which is a coolant temp always low. My temp gauge has gone down to a quarter. It has always run at a notch below middle. The coolant is full. I believe it may be...


you are right it is the temp sensor and depending if it is a 4 cly. or 6 cly it will be near the upper radiator hose input to the motor! two wire sensor. they are cheap and once you get it you can match it to the old one seeing it doesn't look like anything else!

Sep 16, 2009 | 2004 Dodge Stratus

1 Answer

Getting a low coolant temp code.temp is normal. im


Sometimes there are two Temp sensors. Did you see if you had two?

Jul 29, 2009 | 1997 Toyota Tacoma

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