Temperature Gauge

70

Asked by Applejacks Jan 10, 2016 at 08:16 PM about the 2005 Chevrolet Impala FWD

Question type: Maintenance & Repair

Well it all started with the passenger side
blowing cold air when the heater is on. The
temperature gauges started going up an
down. I have replaced thermostat, water
pump, as well as fixed heat. Also replaced
serpentine belt because it needed it.
Question is: Why is my temperature gauge
going up an down? I looked under the hood
an the the hoses r collapsing. 3 years ago I
had the heads done. I feel as if this car is
possessed. Any ideas. Please help.

7 Answers

220,505

When refilling the cooling system did you purge the air out? And on some cars there is a check valve to help control coolant flow. I will look and get back to let you know if there is one or not.

6 people found this helpful.
220,505

Ok I saw no check valves for that one. Do the fans work?

2 people found this helpful.
70

Yes both work. My Dad replaces thermostat first, then water pump an purged the system. The heater started acting up first, so I fixed it. Then when the temperature gauge started my dad replaced thermostat, an water pump. But notice that both hoses are collapsed after all this was replaced.

3 people found this helpful.
70

This is a 2005 Chevy Impala. I know the car is older with over 200,000 miles. But seems like these cars r problematic. I will not be buying another.

3 people found this helpful.
90

In my 2003 impala with the 3.4 liter engine,I was also experiencing a collapsed radiator hose.... I found the small rubber hose connected near the water pump and going to the coolant bypass pipe had a tiny pin hole causing a hissing sound when hot and loss of coolant pressure, coolant, and overheating. The coolant bypass pipe (metal) may also be rusted and have a hole as seen with another guy on the internet.

3 people found this helpful.

i was also told that engine was designed to run hot if to cool the milage would get crappy I think I heard the gauge would run around 3/4 of the way up towards the hot end 2003 3.4 L V6

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