2K Impala LS, "low coolant"

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2K Impala LS, "low coolant"

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Chevrolet >> Chevy Cars >> Impala >> 2K Impala LS, "low coolant"

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2K Impala LS, "low coolant" - 11/14/2005 4:21:26 PM

erik2282

Posts: 3
Joined: 9/26/2005
From: United States
Status: offline

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the low coolant light is on on my 2000 impala ls, the coolant level is fine though. i checked the radiator and it is filled almost all the way up(normal). found leak on intake manifold gasket on the head on the front of the engine close to the throttle body. also the car sounds funny when i drive it, almost like a slight grinding or scratchy feel to it on the gas pedal. When cruising on the freeway the rpm wont drop below 2,000 rpm. it didnt used to do this. I read somewhere on another site about a tsb about this, but my impala is way out of warranty. I think it involved replacing the intake manifold? or is it justt he gasket? does anyone have anymore info on this? thanks so much for reading

erik

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RE: 2K Impala LS, "low coolant" - 12/24/2005 8:35:08 PM

PilatusInc

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Joined: 12/24/2005
Status: offline

Unplug the sensor to take care of the problem.... unless you want to want to spend money on a new one.

(in reply to erik2282)

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RE: 2K Impala LS, "low coolant" - 12/27/2005 10:35:01 AM

Patrick

Posts: 268
Joined: 3/17/2005
From: United States
Status: offline

i have read many stories about the sensor going bad...

(in reply to PilatusInc)

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RE: 2K Impala LS, "low coolant" - 1/13/2006 8:47:41 PM

covert agent

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Joined: 1/13/2006
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I had the low coolant light on for about two weeks and the coolant level always appeared OK, but finally the goodwrench mehanic told me I had a slow leak on the radiator. Changed the radiator (for a jobber one) and no more problemo !

(in reply to Patrick)

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RE: 2K Impala LS, "low coolant" - 1/16/2006 9:01:41 AM

sticker

Posts: 1
Joined: 1/15/2006
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I had the same experience on my 2002 3.4l Impala. 75000miles I found that the sensor was not working. I think this was due to a buildup of sludge from the antifreeze. I was able to clean off the tip of the sensor with paint thinner and it worked for a couple of weeks. The sensor is difficult to remove,naturally, and you must take off the o-rings before you clean it otherwise you will damage them. Remove all traces of paint thinner before reinstalling. Since this repair only lasted a couple of weeks, I would recommend replacing the sensor with a new one ($60 ?).

I also had a slight antifreeze leak at a bolt on the intake manifold under the throttle body. I was able to remove it , apply gooy gasket sealer on the threads and reinstall which so far has fixed the leak. The bolt seemed looser than normal when removing it.
After doing all this, I flushed the system out and put in new antifreeze.

< Message edited by sticker -- 5/31/2006 5:38:14 PM >

(in reply to erik2282)

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RE: 2K Impala LS, "low coolant" - 5/24/2006 10:37:40 AM

dergills

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Joined: 5/24/2006
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I know this is an old posting, but I thought I would reply for future reference. My 2001 with a 3.4L had the same problem. I had to replace the coolant sensor. This was a pain in the butt to do because I had to remove so much stuff to get to it. As for the manifold gasket, I had to replace that too as it cracked and broke into pieces. The pieces fell into the engine and jammed up a lifter. Needless to say the coolant then injected into the oil pan. Apparently GM started to use a "plastic" manifold gasket. I would keep a close eye on this. Hope this posting helps.

(in reply to erik2282)

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RE: 2K Impala LS, "low coolant" - 6/24/2008 11:57:28 PM

mcbridea88

Posts: 9
Joined: 6/19/2008
Status: offline

I have a question similar to this posting but is slightly different. I have low coolant in my 2002 impala and I can''t figure out how to drain all the coolant I dont have a drain plug and the clamp attached to the hose is corroded.

PLEASE HELP!!!

(in reply to dergills)

Post #: 7

RE: 2K Impala LS, "low coolant" - 6/25/2008 8:27:53 AM

HotSauce6226

Posts: 197
Joined: 1/16/2008
Status: offline

Intake gaskets in 3.4 and 3.1 engines are horrible. Replace when you get your first leak

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2003 Chevy Impala 3.4
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(in reply to mcbridea88)

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RE: 2K Impala LS, "low coolant" - 6/25/2008 6:08:53 PM

shawnvw

Posts: 1097
Joined: 1/18/2008
Status: offline

Can you get to the clamp at the motor end of the bottom rad hose?
If you have a worm gear clamp, you can cut it off with a pair of side cutters

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If you have a question, ask it in the forums. I will no longer be answering questions sent to my email.

(in reply to HotSauce6226)

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