1996 Chevy Corsica Knocking sound and loss in power

1996 CHEVROLET CORSICA

133,000 MILES • 4 CYL • 2WD • AUTOMATIC

LIONSDAD

MEMBER
2 POSTS

I have a 1996 Chevy Corsica 2.2L.The car died yesterday and it was towed back to the house. It ran a little hotter than normal before dieing. After it had cooled I started it again and it ran for a few seconds and stalled and wouldn't start again. The belt was very smooth I figured maybe it was slipping and therefore wasn't turning the water pump as it should have been and that was why it ran hot and is why it stalled. I changed the belt and it started and stayed running but there's a knocking coming from the area of the #4 cylinder, I have a check engine light, and it stills runs rough and does not have the same pick-up it used to.

Sep 5, 2009 at 12:40 PM

MERLIN2021

✓ASE Certified Mechanic
17,250 POSTS

Have you checked the antifreeze level yet? And if the knock sensor is picking up the knock, it will retard the timing. Do a compression check on all cylinders with all plugs removed and fuel pump relay removed.

Sep 5, 2009 at 12:48 PM

LIONSDAD

MEMBER
2 POSTS

I checked the antifreeze level, it was fine. I don't have a compression gauge to check the cylinders. I checked the code for the check engine light and cleared it. It was a MAP sensor high voltage code. Could this have anything at all to do with the knocking sound I heard?

Sep 7, 2009 at 2:41 PM

MERLIN2021

✓ASE Certified Mechanic
17,250 POSTS

Map sensor probles can make the engine run like crap, and could cause noise. Unplug the sensor and see if it runs better, if so replace the sensor.

Sep 8, 2009 at 6:20 AM

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