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mysterious engine stall LS8

l3ftism

Junior Member
14
1
3
orlando, fl
This just happened to me earlier. Engine just shuts off. First time was while idling the second time happened a few minutes later as I drove down the road. No messages and the car started right back up.

I had just gone through an automated car wash. Anyone heard of this before? I saw no water on anything under the hood.

note;
Recent work I had done, replaced transmission fluid and rotated wheels yesterday. Replaced battery about a week ago.
First time this has ever happened.

thank you!
 

don-ohio

Member
153
12
18
With engine cold, car on level, spray windshield with garden hose and watch under the the wiper cowl. The wiper cowl seal(just a circular foam gasket on bottom of cowel) might be allowing water to run onto engine and under coil covers(if they're installed).
Common problem on the LSes. I fashioned an aluminum shield, with two holes for the cowel cover fasteners, and it directs any water that gets thru that gasket, rearward toward the bell housing area.
 

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