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My 2004 3.4 base impala's hot coolant temp light is coming on.. Filled the rad up twice in 3 days and bled out air.. Oil looks kind of orange. What could be wrong? No loss of engine power

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  • Cars & Trucks Master
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Temperature sensors do fail get it tested .

Posted on Dec 07, 2016

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 2004 impala coolant level

My 2004 3.4 liter impala had this problem.I found out the Rad. overflow tank was leaking Rad fluid out of the overflow nozel on the tank.I pluged the overflow nozel and added a hole in the tank cap.filled the tank to the proper level and bleed the air out of the Rad.(plug on rigid tube of engine, pull plug til fluid comes to top while running)never had another problem over heating again.

Posted on Aug 15, 2008

nyspeter86
  • 81 Answers

SOURCE: 02 F150 4.6 I have no heat only cold air

Confirm an operational thermostat and heat control valve.

Posted on Dec 27, 2008

theroadis
  • 81 Answers

SOURCE: coolant problem

Sounds like you might have an air pocket in the cooling system. This can develop, usually after a service, where the cooling system has to be opened to replace a water pump, thermostat, or other reason. When refilled, the air displaced by coolant has to go somewhere. In many cases, youll find that air is trapped in the highest place it can go...above the level of the radiator cap or overflow bottle. This can be a portion of the upper rad. hose, a heater hose, or a coolant line running thru various parts of the intake/throttle body area. What I do after topping up the system, is let the engine warm to normal op. temp./ W radiator cap still off. When upper hose becomes hot, you know thermostat is open. Now, if a bleeding device is not present, back off a hose clamp at the highest point in the system. Take a pair of pliers and twist the hose just enough to break the seal. You should see steam or drops escaping from your "breach". Once the steam stops and becomes all coolant, you have likely bled all air from the system. Top up radiator and coolant bottle to proper mark and close the system. (tighten your hose clamp) Check for leaks. Keep an eye on your system for a day or two, to insure no leaks are present.

Road

Caution! As with any task that involves opening the cooling system...Coolant and water can become very hot. Hot water and steam can be very dangerous. If you dont feel qualified to perform this task, let a mechanic do it!

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Posted on Feb 04, 2009

  • 156 Answers

SOURCE: engine oil mixed in coolant

this would more than likely be cause by a bad cylinder head gasket. I would bet 89% this is your problem.

Posted on Mar 27, 2009

  • 335 Answers

SOURCE: like 3 days after i got my oil changed in my 2006

This is an idication of a severe oil leak. Check the oil level in your engine to see if there is any in it. Add to the full mark and return to the oil change shop and ask them to see where the leak is. Do not operate without oil. Severe engine damage will occur. Hope this helps Moe

Posted on Apr 28, 2009

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1 Answer

My 2004 3.4 6cyl base impalas "hot coolant temp" light came on and the reservoir tank is half way full now when cool. It wasn't a week ago, I haven't added any fluids, what could be the problem?


seems that you have a coolant leak somewhere and when cooling down the leak is sealing and drawing back reservoir water
could simply be a radiator cap problem
have a coolant pressure test done
check under the water pump body for a leak under running and pressure

Nov 02, 2016 | 2004 Chevrolet Impala

2 Answers

Fans not turning on and replaced the coolant temp sensor? Coolant in reserve but not in radiator?


why do you have ? on facts? odd that.
my guess replaced ECT ! not ?
my guess, doing so , now engine is full of air, and not fails.
as all do.
front RAD cooling FANS, right? (not heater blower )
it don't work like you think, ? huh?
what does" not in Rad "mean? with ? marks?

means you trust the silly side tank and not look in rad? fail you will.
when doing cooling service, learn read a book first.
read how to fill and burp your engine, Just like feeding a baby it is.
is engine overheating?
did it , has it, or ? , what started this saga, tell a full story?
and WIN !
Facts: on this system.
the fans are controlled by the computer brain, under a complex set rules now. it's not some mindless switch like days of old.
sorry!
ill now answer for USA 03, how ours work,
ONLY!
ours has one fan., (not fans)
ours has a 3 speed fan (at rad back side.)
and has rules to run all 3 speeds, via 3 relays
the PCM/ECU decides this, based on if A/C is on or off.
and a complex set of rules (uses the ECT for this magic)
Fact 2: ECT will not work with air pockets !!!!
The PCM even turns on and turn off are not same temp!!!
Rules:
1: Rad must be filled of AF/ 50% antifreeze cold, to the top neck of RAD filler.
2: rad and engine burped of all air pockets, ask it's same on all cars.
3: the ECT must work, right, if air pockets there, it CANT work.
4: park car, idle until the minimum engine time is reached parked.
about 180F, but all cars overheat if parked, idling and fan stays dead.
fan is off , and at some point, the fan goes to low speed.

this varies by engine option, but is around 225F. (stage1)
THE FSM covers these checks, and rules, and temps. for all 3 stages of fan speed.
scan the pcm yet>?
got P0128 DTC? or others, for temperatures wrong,
not scanning is a big mistake on all modern cars.
big time!
yes, rad must be full parked cold, yes, yes, yes...
side expansion tanks do fail. for many reasons. ask.

a 2.0L engine. only, here. 7.4quarts cooling cap.
here is ours. usa fan. a 4 wire fan it is....
the ecu controls it using SOFTWARE, (firm-ware in truth)
26098393-rlcj0qgtvzvpudyok3p1nj5o-4-0.jpg do not drive car until all air is burped out of engine and rad.
DO NOT!
in fact run it idling to hot. 180f. ( too hot to touch long)
, kill engine with key.
let cool, to luke warm, or cold.
check rad level. (sure its low)
top it off, cap it,
repeat 3 times, before driving or if it holds levels.

Feb 17, 2016 | 2003 Suzuki Aerio

2 Answers

Why is my car still overheating and blowing no hot air from heater?


When did the problem start, before or after you flushed the rad.

Jul 03, 2014 | 2001 Chevrolet Impala

1 Answer

Water leaking when ambient temps cool


there are 2 sources of water, one is good, one is bad.
the good is pure water from the A/C condensate tray, tube. drain.
the bad is the Green/ org kind called AF coolant.
antifreeze coolant, (only YOU know the color)

the acid test for AF coolant leaks is.... (hot ,never cold)
is:
1; drive till fully hot, 20 miles, (engine temp reaches normal on dial)
2: idle until rad fan comes on,
3: shut off engine, (safety)
4: the system is now at 14PSI pressure
5: any leaks are now in full view (assumes not in engine oil side)
all you do is stand there, and look for 10mins.
all hoses, the RAD , all coolant lines. (hot lines are coolant)
and the block -head split , no leaks.
on the passenger side carpet (heater core leaks)

if you look , you will see the leak. and the exact source.
it is very easy to do this, hands i pocket,


Oct 02, 2013 | 2005 Jeep Liberty

2 Answers

I replaced the thermostat due to overheating. Overheat problem went away for about three days then came back. Overfill bottle was somewhat low. filled the bottle re set computer fine for two days the...


when you topped the system up after the thermostat was changed. did you run the engine with the filler cap off and ran engine till all the air was out and keep topping up till all the air has come out and left to cool before toping up and putting the cap on ???

Sep 28, 2013 | 2008 Chevrolet Impala

1 Answer

Overheating impala


What you are describing is a lack of coolant flow in the engine or radiator, or lack of air flow thru the radiator.
If you are sure the coolant level is ok, and flow is good, I would check for a restriction in air flow thru the condenser and radiator.

Jun 11, 2013 | 2001 Chevrolet Impala

1 Answer

I replaced the heater core. After fillling the coolant I bled all the air out that I could thru the bleeder screw at the thermostat housing. However I had no heat. Pulled the cover back off and the core...


some cars like cavalier and sunbirds grand am
were the rad is lower then the motor or heater core
needs to be vacumed fill to get all the air out
otherwise very little heat in heater system even if engine temp
runs up

Mar 31, 2011 | Pontiac 6000 Cars & Trucks

1 Answer

04 CHEVY IMPALA IS LEAKING GREEN FLUID.


It seems that Midas is going to stand behind the work that they did on your car. If there is something happening that they haven't already diagnosed, they should be able to tell you that, too.

My guess is that the green liquid you saw was coolant coming from the overflow of the coolant recovery tank because the system is overheating and the excess pressure is forcing coolant out. There may still be air in the cooling system, or possibly air is getting into the system from a bad head gasket or crack in the head or block. Check to see if there is any evidence of oil in the coolant, or if there is water in the crankcase -- the oil on the dipstick will look 'milky'.

Mar 30, 2009 | 2004 Chevrolet Impala

1 Answer

Overheating/No Heat 2001 Impala


change the thermostat and the temp gauge in the radiator

Mar 03, 2009 | 2001 Chevrolet Impala

2 Answers

2004 impala coolant level


The coolant container (called the overflow reservoir) will be marked as to what constitutes MIN and MAX levels that should be in it. If it's low, add coolant.

As for what temperature it should run at, the gauge on the dash is just a general indication, but usually it runs close to the middle of the gauge's range.

Aug 08, 2008 | 2004 Chevrolet Impala

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