02-20-2015, 05:39 PM
Last edit by: IB Advertising
See related guides and technical advice from our community experts:
Browse all: Exterior How-Tos
- Corvette Rattling Noise Guide
Important information to help you understand your Corvette.
Browse all: Exterior How-Tos
LOW OIL PRESSURE to ZERO OIL PRESSURE and NOW ENGINE RATTLE
08-04-2010, 08:19 AM
#1
Drifting
Thread Starter
LOW OIL PRESSURE to ZERO OIL PRESSURE and NOW ENGINE RATTLE
I believe my car is toast. I was driving and went from Low Oil Pressure to Zero Oil Pressure in a matter of 30 sec.
What can possible do this??? Bad Oil Pump, Bad Lifter?
What can possible do this??? Bad Oil Pump, Bad Lifter?
08-04-2010, 08:25 AM
#2
Le Mans Master
And the reason you kept driving for 30 seconds with low oil pressure was? 
It might have been just a bad sensor but when you say the engine now rattles that's a pretty good indication there really was a problem and you kept going until, as you say, the engine is now toast. What was the problem? Does it really matter now? Even if it was just a failed oil pump the engine now needs to at least be rebuilt if not replaced.
Good luck.
It might have been just a bad sensor but when you say the engine now rattles that's a pretty good indication there really was a problem and you kept going until, as you say, the engine is now toast. What was the problem? Does it really matter now? Even if it was just a failed oil pump the engine now needs to at least be rebuilt if not replaced.
Good luck.
08-05-2010, 08:20 AM
#3
Drifting
Thread Starter
The reason was I was on a VERY busy intersection and could not have stopped until I pulled into a parking lot safely.
The car is at the stealership. What can possibly cause a "Low Oil Pressure"
The car is at the stealership. What can possibly cause a "Low Oil Pressure"
08-05-2010, 08:33 AM
#4
Team Owner
08-05-2010, 08:37 AM
#6
Team Owner
I would guess the oil pump if the oil level is okay, you certainly did not throw a rod or something of that nature.
08-05-2010, 08:38 AM
#7
Melting Slicks
That rattle you heard was it's death rattle, your toast. Low oil pressure means that...low oil pressure, you just spun a bearing, or a whole lot of bearings! I hope it was something internal for your sake and not something as stuiped as low oil. Low oil would mean lack of maintaince, which would mean no warranty if you had one. Good luck, let us know what happened.
08-05-2010, 09:08 AM
#9
Race Director
Oh man, this is not going to be pretty. OP I am sorry, hope it is not as bad as we are all thinking but from what you described RIP your engine...
let us know what happens.
let us know what happens.
08-05-2010, 10:06 AM
#10
CF Senior Member
Member Since: Feb 2006
Location: Tucson Arizona
Posts: 23,313
Likes: 0
Received 19 Likes
on
18 Posts
I'm sorry about your problem. From what you say it doesn't sound encouraging but keep a good thought. Did the oil pressure suddenly go from 'normal' to low to zero? Were you driving with low oil pressure for a while? What was the low oil pressure reading? Was this at an idle or was it low even under acceleration? Did you notice the engine rattle before you stopped or did you restart the car after pulling over? What were the circumstances....were you 'stressing' the engine? When I come off the race track (hot) its not unusual for my oil pressure to dive as low as 18 at an idle, however, if I give it some gas the pressures increases. After it cools down everythings back to normal.
I'm no expert but there can be many things which cause low oil pressure...a malfunctioning oil pump (stuck regulator valve, regulator valve spring, etc.), pressure relief valve, blockages, missing oil gallery plugs, valve lifters, electrical problems, filter problems, etc. Hopefully, its something relatively minor and engine damage, if any, will be minimal. Let us know what happens and good luck.
I'm no expert but there can be many things which cause low oil pressure...a malfunctioning oil pump (stuck regulator valve, regulator valve spring, etc.), pressure relief valve, blockages, missing oil gallery plugs, valve lifters, electrical problems, filter problems, etc. Hopefully, its something relatively minor and engine damage, if any, will be minimal. Let us know what happens and good luck.
08-05-2010, 10:07 AM
#11
Melting Slicks
Member Since: Jul 2007
Location: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
Posts: 3,097
Likes: 0
Received 4 Likes
on
4 Posts
That rattle you heard was it's death rattle, your toast. Low oil pressure means that...low oil pressure, you just spun a bearing, or a whole lot of bearings! I hope it was something internal for your sake and not something as stuiped as low oil. Low oil would mean lack of maintaince, which would mean no warranty if you had one. Good luck, let us know what happened.
The problem still needs to be addressed but you might not be looking at a complete catastrophic failure.
08-05-2010, 10:13 AM
#12
Team Owner
Believe it or not these engines (despite all the failures) can be pretty resilient. If the OP got the motor shut down quickly enough, the rattle sound he heard would have probably just been the lifters clacking from having been bled down and not necessarily because of a spun bearing.
The problem still needs to be addressed but you might not be looking at a complete catastrophic failure.
The problem still needs to be addressed but you might not be looking at a complete catastrophic failure.
08-05-2010, 10:44 AM
#13
Melting Slicks
Several TBSS' with the LS2 have spun bearings as well, but they have been attributing it to poor oil pick up because of the different type of oil pan. They have been monitoring the oil pressures with Dashhawks, etc and many have found their pressures dropping as you mentioned while accelerating. I've been hoping this is the oil pan issue, and not an LS2 issue as I have two. Let us know what they find. Good luck.
08-05-2010, 12:23 PM
#15
Race Director
Time to pray to the Corvette and LSx Gods
Was the car leaking any oil? I figure you might have mentioned if it was, but just curious.
Was the car leaking any oil? I figure you might have mentioned if it was, but just curious.
08-05-2010, 01:06 PM
#17
Safety Car
Yes, please let us know how it turns out.
08-05-2010, 05:59 PM
#19
Melting Slicks
Believe it or not these engines (despite all the failures) can be pretty resilient. If the OP got the motor shut down quickly enough, the rattle sound he heard would have probably just been the lifters clacking from having been bled down and not necessarily because of a spun bearing.
The problem still needs to be addressed but you might not be looking at a complete catastrophic failure.
The problem still needs to be addressed but you might not be looking at a complete catastrophic failure.
I bet your right. This may not be the end of days for that engine.
08-05-2010, 06:36 PM
#20
Believe it or not these engines (despite all the failures) can be pretty resilient. If the OP got the motor shut down quickly enough, the rattle sound he heard would have probably just been the lifters clacking from having been bled down and not necessarily because of a spun bearing.
The problem still needs to be addressed but you might not be looking at a complete catastrophic failure.
The problem still needs to be addressed but you might not be looking at a complete catastrophic failure.
