Not all scanners will be compatable with the C5. Use the DIC to retreive the DTCs and post the codes.
It stopped and I'm perplexed
Thread Starter
Drifting
Joined: Jul 2005
Posts: 1,375
Likes: 2
From: Austin Texas
It stopped and I'm perplexed
Driving from one work site to another, and the car flashes "check gauges" at me, and starts to shut down. I managed to get it shut down before the oil pressure went to nothing. Pushed it to the side of the road. Nothing leaking, dip stick shows oil. No codes in the DIC. It's an 02 Z06 with no engine mods. Got it to the shop (tow truck driver pulled the wheel sensor cable apart, bummer), and it'll start, but runs awful. Still no codes (well, wheel sensor code now), according to the Tech II at the shop. Anyone have something like that happen?
Melting Slicks
Joined: Oct 1999
Posts: 2,581
Likes: 14
From: Tolar Texas
My 02 Z06 recently died in a similar way. The engine began sputtering and loosing power, then died all within a quarter of a mile. The problem was that the driver side fuel tank had run dry even though the passenger side tank still had fuel in it.
The jet pump had not been transferring fuel to the driver’s side tank. After adding some fuel it fired right up.
I suspected that debris had clogged up the jet pump fuel supply circuit so I disconnected the fuel lines from the passenger side tank and blew them out with compressed air.
My assumption must have been correct because everything is functioning normally now.
I hope your repair ends up being as inexpensive as mine was, (FREE!).
Here is a link to my thread:
Ran out of gas… due to fuel transfer system failure
http://forums.corvetteforum.com/show....php?t=1758904
Wheel Sensor:
As long as it didn't get ripped directly out of the wheel bearing you should be able to splice it back together to avoid costly replacement of the whole bearing assembly.
The jet pump had not been transferring fuel to the driver’s side tank. After adding some fuel it fired right up.
I suspected that debris had clogged up the jet pump fuel supply circuit so I disconnected the fuel lines from the passenger side tank and blew them out with compressed air.
My assumption must have been correct because everything is functioning normally now.
I hope your repair ends up being as inexpensive as mine was, (FREE!).
Here is a link to my thread:
Ran out of gas… due to fuel transfer system failure
http://forums.corvetteforum.com/show....php?t=1758904
Wheel Sensor:
As long as it didn't get ripped directly out of the wheel bearing you should be able to splice it back together to avoid costly replacement of the whole bearing assembly.
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
Maybe a bad alternator or electrical problem.
You pull codes thru DIC not scanner.
Here's how.
http://www.corvettedoctor.com/Code_Main.html
Post up codes. Check your battery. How old is it ?
You pull codes thru DIC not scanner.
Here's how.
http://www.corvettedoctor.com/Code_Main.html
Post up codes. Check your battery. How old is it ?
Thread Starter
Drifting
Joined: Jul 2005
Posts: 1,375
Likes: 2
From: Austin Texas
Thanks for the fuel tank warning. I'll have them check it out. We got the car started, but it sounds like a broken valve spring or something.
I pulled codes from the DIC when the car first stopped. No codes.
I pulled codes from the DIC when the car first stopped. No codes.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
Thread Starter
Drifting
Joined: Jul 2005
Posts: 1,375
Likes: 2
From: Austin Texas
Compression test results:
Cylinder #1 105
Cylinder #2 145
Cylinder #3 145
Cylinder #4 150
Cylinder #5 0
Cylinder #6 125
Cylinder #7 115
Cylinder #8 75
Looking worse, rather than better. Anyone seen that before? No compression would indicate a bent valve (likely from piston contact). I have no idea why the 75 pound reading.
Cylinder #1 105
Cylinder #2 145
Cylinder #3 145
Cylinder #4 150
Cylinder #5 0
Cylinder #6 125
Cylinder #7 115
Cylinder #8 75
Looking worse, rather than better. Anyone seen that before? No compression would indicate a bent valve (likely from piston contact). I have no idea why the 75 pound reading.
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
Compression test results:
Cylinder #1 105
Cylinder #2 145
Cylinder #3 145
Cylinder #4 150
Cylinder #5 0
Cylinder #6 125
Cylinder #7 115
Cylinder #8 75
Looking worse, rather than better. Anyone seen that before? No compression would indicate a bent valve (likely from piston contact). I have no idea why the 75 pound reading.
Cylinder #1 105
Cylinder #2 145
Cylinder #3 145
Cylinder #4 150
Cylinder #5 0
Cylinder #6 125
Cylinder #7 115
Cylinder #8 75
Looking worse, rather than better. Anyone seen that before? No compression would indicate a bent valve (likely from piston contact). I have no idea why the 75 pound reading.
At this point, I would pull of heads and see what you got. Only other thing that comes to mind is a blown head gasket.
Resident moron
Joined: Jun 2003
Posts: 4,746
Likes: 20
From: Assachusetts
It definitely does sound like some valves. I wonder if you lost some valve springs, the valves hit the pistons and that's why your compression is down? Not sure on that 75 reading either, that's weird. I'd be pulling those valve covers and taking a look (and then the same with the heads). Hopefully it's not blown ring(s) or hole in a piston.
Dope
Drifting
Joined: Oct 2002
Posts: 1,773
Likes: 66
From: SoCal
Compression test results:
Cylinder #1 105
Cylinder #2 145
Cylinder #3 145
Cylinder #4 150
Cylinder #5 0
Cylinder #6 125
Cylinder #7 115
Cylinder #8 75
Looking worse, rather than better. Anyone seen that before? No compression would indicate a bent valve (likely from piston contact). I have no idea why the 75 pound reading.
Cylinder #1 105
Cylinder #2 145
Cylinder #3 145
Cylinder #4 150
Cylinder #5 0
Cylinder #6 125
Cylinder #7 115
Cylinder #8 75
Looking worse, rather than better. Anyone seen that before? No compression would indicate a bent valve (likely from piston contact). I have no idea why the 75 pound reading.
Just thinking. That happened to me once.
Burning Brakes
Joined: Nov 2006
Posts: 810
Likes: 0
From: Coulmbia New Jersey
I was thinking the cam sprocket bolts loosened up. The cam could walk back and forth blocking the oil passages. The engine could still run but very poorly. Try removing a rocker cover and turning the crank by hand foreward while watching the cam action. Then turn the crank backwards and see if there is any slop.
Dave
Dave
Melting Slicks
Joined: Oct 1999
Posts: 2,581
Likes: 14
From: Tolar Texas
Sorry to hear the bad news yakisoba.
Today I searched the archives for "broken valve spring". It appeared like #5 and #8 failed more often than the others. If that is indeed true, I wonder why that would be?
Valve spring failure did not seem to have any correlation to mileage.
I was surprised to read about the failures that happened at idle or just off idle in a low to no load conditions.
Some engines were spared, needing only to have the springs replaced. Others weren't so lucky. Hopefully your damage will be minimal.
I may have to add new valve springs to the short list of preventative maintenance on my '02 Z06.
Today I searched the archives for "broken valve spring". It appeared like #5 and #8 failed more often than the others. If that is indeed true, I wonder why that would be?
Valve spring failure did not seem to have any correlation to mileage.
I was surprised to read about the failures that happened at idle or just off idle in a low to no load conditions.
Some engines were spared, needing only to have the springs replaced. Others weren't so lucky. Hopefully your damage will be minimal.
I may have to add new valve springs to the short list of preventative maintenance on my '02 Z06.
Instructor
Joined: Jun 2006
Posts: 220
Likes: 1
From: East Windsor NJ
I was thinking the cam sprocket bolts loosened up. The cam could walk back and forth blocking the oil passages. The engine could still run but very poorly. Try removing a rocker cover and turning the crank by hand foreward while watching the cam action. Then turn the crank backwards and see if there is any slop.
Dave
Dave
Instructor
Joined: Jun 2006
Posts: 220
Likes: 1
From: East Windsor NJ
Mine motor was stock, obviously the S/C is not. The Cam had never been removed. I have heard that it has happened on completely stock cars without the S/C or any motor mods.