LS2 Engine Cutting Out
Thread Starter
4th Gear
Joined: Jun 2009
Posts: 4
Likes: 0
LS2 Engine Cutting Out
When hot the engine cuts out. After 5 or 6 hours on the road car begins have engine surges and coughs. Had scanned this am, mechanic could not find anything wrong. Drove 5 hours did it again. HELP, I am 3 days away from home in Minn. It is at another Chevy dealer. Thanks.
Thread Starter
4th Gear
Joined: Jun 2009
Posts: 4
Likes: 0
full most of time eng.starts losing power and yesterday after all day on road engine coughed a bit and pulled over, towed to chevy codes didn,t tell us anything. Did same thing today after 5 6 hours have it at chevy dealer here in alexandria, mn. Will see what he can find in am.This is a 05 vette 20,000 miles.thanks.
Thread Starter
4th Gear
Joined: Jun 2009
Posts: 4
Likes: 0
full most of time eng.starts losing power and yesterday after all day on road engine coughed a bit and pulled over, towed to chevy codes didn,t tell us anything. Did same thing today after 5 6 hours have it at chevy dealer here in alexandria, mn. Will see what he can find in am.This is a 05 vette 20,000 miles.thanks.
Le Mans Master
Joined: Feb 2006
Posts: 5,762
Likes: 4
From: Chandler Arizona
Only time I've had an LS engine cut out is due to either a loose spark plug wire (you really have to push down hard until it clicks) or a dirty MAF. You can clean the MAF with maf cleaner or electrical cleaner.
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Racer
Joined: Aug 2008
Posts: 497
Likes: 21
From: Garner NC
Might want to look at the fuel pump too. Could be having an issue where its getting too hot and shutting down, or an ignition/coil problem.
Safety Car
Joined: Jan 2008
Posts: 4,711
Likes: 3
From: Middle of No where AK
I would say maf maybe too. I can really cause your car to do weird things. Start there as its an easy fix. I dont think heat is a problem since his temp is only 195 which is actually a little low for prolonged highway driving.
