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My 2000 Chevrolet Impala 3

Tiny
RAYBEATZ
  • MEMBER
  • 2000 CHEVROLET IMPALA
  • 160,000 MILES
My 2000 Chevrolet Impala 3.4 has an issue with a loud wine.

SYMPTOMS

* Loud intermittent wine coming from somewhere on the right side of the engine
* The loud wine comes once the car gets hot and it constantly continues when the car is in operation
* Car overheats in idle unless the heat is on or accelerating
* Car has an error code of p1404 aka EGR Valve.

I have replaced the radiator because of a leak I had. I also have flushed the system. The water pump is less than 5 years old. I am not sure which direction I should go in to remedy the problem.

Also, I have no performance issues other than the random overheating. The car accelerates fine with no issues.

Thoughts?
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Sunday, March 24th, 2013 AT 6:27 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
1. Check the power steering fluid and add as needed. It may be the pump.

2. Overheating at idle may be a falied cooling system fan on the radiator. Does it work with the ac on?

3. 1404, remove the egr and make sure the passages are clear as carbon is a big issue.

Roy
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Thursday, January 31st, 2019 AT 6:40 PM
Tiny
RAYBEATZ
  • MEMBER
  • 9 POSTS
The fans work (cut on) when it reaches the overheating stage. It also works with the AC on. I will check on the egr and the power steerting fluid.
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Thursday, January 31st, 2019 AT 6:40 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I would start with changing the thermostat.

Roy
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Thursday, January 31st, 2019 AT 6:40 PM

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