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Chevrolet
Impala
Engine
Symptoms
Hard to Start
Location/remove/replacement
2006 CHEVROLET IMPALA
208,000 MILES • 3.5L • V6 • 2WD • AUTOMATIC
LCA
MEMBER
1 POST
Engine losing power, exhaust smoke, knocking sound from engine, losing power, hard to start.
Feb 25, 2020 at 10:57 AM
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JACOBANDNICKOLAS
✓
Experienced Mechanic
110,248 POSTS
Hi,
That sounds like a lot of different issues. What color is the exhaust smoke?
Take a look through these links and see if they help. Also, let me know about the smoke and if the exhaust could have a converter plugging.
https://www.2carpros.com/articles/how-to-test-a-catalytic-converter
Let me know.
Joe
Mar 12, 2021 at 1:36 AM
SCGRANTURISMO
✓
Experienced Mechanic
4,897 POSTS
Hello,
This sounds like you have at the very least a blown head gasket, possibly other internal damage like worn bearings or a damaged crankshaft. Here are a couple of links below to test if you have a blown head gasket:
https://www.2carpros.com/articles/head-gasket-blown-test
Please go through these guides and report back with what you find out.
Thanks,
Alex
2CarPros
Mar 12, 2021 at 1:36 AM
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Engine won't start
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