2003 Cheverolet impala overheating......

2003 Cheverolet impala overheating....could be bigger problem

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mrwatson

Wichita, KS

#1 Jul 2, 2009
So my 2003 Impala "overheated," first thing to do check the thermostat. Changed it, replaced the water pump and car was fine until flushed and filled. Car "overheated" again, had it burped four times by two different mechanics and places, problem persisted, and no heat from heater (heater core wasn't getting coolant). Did the car actually overheat, did the expansion bolts expand and ruin the gasket, in turn cause cylinder #1 to keep misfiring? Time to replace the gaskets...
Job was done, and there is/was a FACTORY DEFECT ON THE GASKET!!!! Gasket had been pinched, dexcool had plugged the crack caused by the pinched gasket until 73,000 miles.
Called GM, got a case number, showed the factory defect of the gasket to a Chevy Service Manager and now waiting for the official word from GM: Reimbursement for the $2000 spent fixing it and will there be a recall, time will tell BUT I WANT MY EXPENSES REIMBURSED!!!
7/2/09
Kimberly

White House, TN

#2 Jan 14, 2010
mrwatson wrote:
So my 2003 Impala "overheated," first thing to do check the thermostat. Changed it, replaced the water pump and car was fine until flushed and filled. Car "overheated" again, had it burped four times by two different mechanics and places, problem persisted, and no heat from heater (heater core wasn't getting coolant). Did the car actually overheat, did the expansion bolts expand and ruin the gasket, in turn cause cylinder #1 to keep misfiring? Time to replace the gaskets...
Job was done, and there is/was a FACTORY DEFECT ON THE GASKET!!!! Gasket had been pinched, dexcool had plugged the crack caused by the pinched gasket until 73,000 miles.
Called GM, got a case number, showed the factory defect of the gasket to a Chevy Service Manager and now waiting for the official word from GM: Reimbursement for the $2000 spent fixing it and will there be a recall, time will tell BUT I WANT MY EXPENSES REIMBURSED!!!
7/2/09
Let us know when the recall comes out. Good luck with that
CAR

Wiggins, MS

#3 Nov 6, 2010
2000 chevy impala overheating, can see and hear bubbles blowing into coolant tank/overflow. oil still brown in color, engine runs okay at idle. but will quickly overheat if driven.

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cody

Baton Rouge, LA

#4 Nov 24, 2010
CAR wrote:
2000 chevy impala overheating, can see and hear bubbles blowing into coolant tank/overflow. oil still brown in color, engine runs okay at idle. but will quickly overheat if driven.
i having this same exact problem
me again

Raymond, KS

#5 Nov 24, 2010
I started this...cars gone, but a major B2B sales company in the KC area had to have ALL of their impala gaskets replaced. WTH?! Oh well, the ex had the car until she had it repo'd lol. Still pissed about the $$$$ I wasted. Never heard from GM again...next car will likely not be a GM...but will drive my 06 Malibu till it dies.
Rick

Albany, CA

#6 Nov 26, 2010
I went through this problem too. It turned out to be a clogged radiator at 37,000 miles. The repair shop said the radiator core was plugged up, and the coolant could not flow through it properly to be cooled. The shop told me it was cheaper to just buy a new radiator than it was to recore the radiator that was in the car. I had them install a new radiator, and the problem ceased. During the repair the shop also told me there was evidence of an additive placed in the coolant tank which did not help the radiator core either. They told me the additives help clog the cooling system core faster, and thus can cause eventual overheating.

Several years ago, GM issued a recall on 2000 thru 2005 Impalas to fix the intake gasket and redesign the fasteners on the 3.8 liter engine to avoid intake gasket faulure. During the recall, they called for the placement of stop leak additives in the cooling system. This is where the additives were added in my radiator which caused my evenutal overheating problem.

A clogged radiator can overheat the engine and cause gasket failure if you continue to drive the vehicle.
Bad 2003 impala

Saint Louis, MO

#7 Jan 4, 2011
My 2003 impala is over heating.I get heat for a few min.then no heat again.Car will run fine but after a few min.it will start to heat up sometimes it will give heat others it will blow cold.Replaced the thermostat,waterpump,flushed out radiator and heater core still temp riases to 260.
Please help

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mrwatson

United States

#8 Jan 4, 2011
It is likely the gasket. The "thermometer" is near the heater core, and with no liquid making it there (hot air pocket) the temperature reading your gauge gives you is false. Is there excess water coming out of your tailpipe (park on an incline). Then it is the head gasket.

I have spoken with several business that had the same year vehicle for company use (and even some Malibu's) same problem...throughout their companies' organizations (every state).

How the hell GM has been able to get away with this I cannot say, but it is a "known" factory defect that GM's corporate office has refused to admit and/or remedy.
Bad 2003 impala

Saint Louis, MO

#9 Jan 5, 2011
Thanks mrwatson, I did check for water out of the tail pipe. when i put my hand under exsust i got some moisture on my hand,would this tell me bad gasket? There is no water in the oil or under oil cap.How hard for a novices to change the head gasket? DAM GM!!!
PS. I took out the thermostat and it stoped over heating put another one in and it seemed that the problem went away.I drove it around for like two hours no problems good heat regular temp.then this morning as my other half took it to work she only made it about a block and temp went to 260 and light came on and no heat again.So confussed please help!
mrwatson

Raymond, KS

#10 Jan 5, 2011
My problem started when I changed from dexcool to "normal" antifreeze...changed thermostat, replaced the water pump...all was fine for a couple of days, then the pinched gasket gave and then cracked, emptying into the headers. Just keep an eye on your car idling, if water literally starts dripping out of the tail pipe, then your engine was assembled on the same mfg line and is part of the "known" problem.
I'm no engine mechanic, not afraid to tackle something myself, but I would not recommend this to the novice. I had some recently laid-off by corporate GM mechanics do the work.

GM is still "sweeping this one under the carpet," and refuses to acknowledge the problem; the known cars to have this defect: mine, 35 in the fleet cars in a four state midwest area, and another 10 here in Topeka, KS. I gave up, the ex-wife got the car anyway :) her problem now.

MY ULTIMATE RECOMMENDATION:
Go to Midas (the have pictures of my gasket and sent to all in North America) get your antifreeze flushed and replaced with the green stuff. Problem continues, excess amounts of liquid exit the tailpipe...TAKE IT TO THE LOCAL GM DEALER TO HAVE THE WORK DONE, DEMAND TO SEE THE GASKET AND RAISE HELL. They'll likely do it no charge...as I was told by the Service Manager who even "fought" with me against GM's corporate service center. The local company will be reimbursed...the customer who does it outside of the "system" gets screwed.
Rick

Berkeley, CA

#11 Jan 6, 2011
My dealer told me you cannot use the old style coolant in the Impala that was designed for dexcool. They told me in order to do this you would have to change all of the gaskets on the entire engine. I was also told the gaskets were designed for dexcool. Who is right? Are they telling us this because they want us to buy dexcool that is more expensive than the old style coolant?

The dealer also told me not to follow the five year 100,000 mile coolant change interval on the maintenance schedule that is in the owners manual. They tell me to change the dexcool more frequently than that because the gaskets would also fail with old coolant in the engine.
Rick

Berkeley, CA

#12 Jan 6, 2011
Bad 2003 impala wrote:
My 2003 impala is over heating.I get heat for a few min.then no heat again.Car will run fine but after a few min.it will start to heat up sometimes it will give heat others it will blow cold.Replaced the thermostat,waterpump,flushed out radiator and heater core still temp riases to 260.
Please help
What engine is in your Impala? The 3.4 or 3.8 V-6. The 3.4 was derived from the 3.1 when they bored it out. The 3.1 was known for intake gasket failure even with the old style coolant. There was a recall on the 3.1 several years ago and litigation too. Gm changed the 3.4 again and came out with the 3.5 V-6.

The 3.8 had a recall to replace the fasteners on the intake because they were the incorrect design which caused gasket failure resulting in the loss of coolant. The 3.8 recall was in 2004, covering Impala's, and several other GM brands which had the naturally asperated 3.8 V-6 engine.

My father had a Cavalier with the 3.1, and he had to replace the intake gasket twice. Once under warranty, and then again at 125,000 miles. My neice has just paid out over $850.00 to replace the intake gasket on her 3.4 engine.
Bad 2003 impala

Saint Louis, MO

#13 Jan 7, 2011
Rick, I have the 3.4 peice of s*%$!I took it to a garage last night he burped out alot of air from over the thermostat and the problem seemed to go away. When i went out this morning it seemed fine again then 10 min into my drive it started to blow cold air and gauge went to 260.I was able to burp more air out when i got to work and ounce again it seems to be ok with good heat and regular temp. Any one know how more air can get into my motor whit out leaking any fluid? I WILL NEVER BUY AMOTHER GM PRODUCT!!!!!!!!
mrwatson

United States

#14 Jan 7, 2011
It was a 3.4L. Burping the air bubble is a waste of time as the fluid will leak into the header, exit through the exhaust and cause another air pocket near the heater core, where the temperature probe is located, which gives you the false reading of high coolant temperature.

There is nothing I read anywhere that states the "old, green" antifreeze voids any warranty, besides the timing and amount of miles...there no longer is one.
Rick

Berkeley, CA

#15 Jan 7, 2011
Bad 2003 impala wrote:
Rick, I have the 3.4 peice of s*%$!I took it to a garage last night he burped out alot of air from over the thermostat and the problem seemed to go away. When i went out this morning it seemed fine again then 10 min into my drive it started to blow cold air and gauge went to 260.I was able to burp more air out when i got to work and ounce again it seems to be ok with good heat and regular temp. Any one know how more air can get into my motor whit out leaking any fluid? I WILL NEVER BUY AMOTHER GM PRODUCT!!!!!!!!
My 2005 Impala with the 3.4 had an issue with the temperature climbing above the half way mark on the gauge. It turned out to be a leaking water pump which was causing air to enter the cooling system. The 3.4 also had to have a gasket on the crankshaft replaced because it was leaking oil. Three months after the seal was changed, the engine is leaking again. When I drive the car, the 3.4 smells like oil is burning off of the block somewhere. The 3.4 is junk. I do not like this engine. My 2003 Impala LS has the 3.8. The 3.8 is much better. It is quicker and more responsive than the 3.4. My 2003 Impala also has had three rack and pinion units in 30,000 miles, and the entire front sub chassis had to be replaced due to cracks in the welds on the subframe. I also will never buy another GM product. I bought a new vehicle recently and went to FORD.

In your case, it sounds like you have air entering somewhere in the cooling system which is causing your problem.
Bad 2003 impala

Saint Louis, MO

#16 Jan 31, 2011
All fixed , it was the head gasket leaking coolant into the piston. The gasket was ovaled out causing the leak and letting in air. Thanks for the help and F GM. FORD, BIULT FORD TOUGH!!!
mrwatson

United States

#17 Jan 31, 2011
No Problem...glad I could help. Not likely to buy another GM myself...
Rick

Albany, CA

#18 Feb 1, 2011
I have discovered my 2005 Impala with the 3.4 has developed a small external oil leak at the top end of the engine. That is why it smells bad when I drive it. It looks like I am also going to have to replace all the gaskets on the top end of my engine from the head gaskets to the intake. I thought the problem was with the gasket on the crankshaft but it is not. My gaskets are starting to fail on this car and eventually the problem will involve the coolant too.

My friend is a ASE certified mechanic, and he told me also the problem I have had with my 2003 Impala rack and pinion steering gear has to do with a poor design. He told me the design belongs in a smaller vehicle and when they designed the Impala they failed to upgrade to a larger steering gear.

I think it is time for another car, and it won't be from GM. I have just a little over 70,000 miles.
Steve

Breaux Bridge, LA

#19 Mar 21, 2011
I have a 2000 Chevy Impala that started overheating last year. Had radiator replaced in Sept 2010 with radiator and green antifreese. Last week 3/16/11 started overheating again. Took back to radiator man and he couldn't find anything wrong with it? He did tell me that it looked like oil in the fluid when he changed it back in Sept. What could be causing this?
mrwatson

United States

#20 Mar 22, 2011
...you should probably look into evaluating what's better for you financially. Get rid of it, and buy a get something new/new-to-you...or spending the money to find out what the problem(s) is.
http://wiki.answers.com/Q/What_would_cause_oi...

My vote, get something new.

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