Help! my new '03 is having some serious issues
Thread Starter
Burning Brakes
Joined: Aug 2002
Posts: 929
Likes: 1
From: West Palm Beach FL
Help! my new '03 is having some serious issues
I'm at only around 1700 miles, did proper breakin (well good enough.. I did punch it once or twice from 40 at ~300 miles) and I'm about a half mile away from home and I notice it's driving a little weak, so I hit the gas down about half way to make sure I'm not just thinking it and most definitely there is a loss in power. And it seems to be almost shaking a very little bit. So I pull it into the garage and I'm noticing a slight whistle type sound, fairly high pitch somewhere upfront. I rev it a little and everything seemed smooth so I turn it off. An hour later I go back out and start it and it's almost wobbling and you can hear the squeak and I try to back out and it shakes even more so I pull it back forward and I hear a screech as I do so. I put it in park and it's just sitting there wobbling and squealing. Ok so I leave it sit for an hour and check the oil level. It appears to be good (in the top of the rough part of the tester? that is good level?) and clean. What do you guys think? This is not cool :confused: :confused:
Melting Slicks
Joined: Oct 2001
Posts: 2,803
Likes: 0
From: Panama City Beach FL
Re: Help! my new '03 is having some serious issues (jdetar)
Other than bringing your call your vette to the dealer for inspection (preferably by tow) I can't give you any advice. Hopefully, others will chime in.
Melting Slicks
Joined: Dec 2001
Posts: 2,040
Likes: 0
From: Collin County Texas
Re: Help! my new '03 is having some serious issues (Patches)
Back when I had a conical filter in place of the stock air box, it "fell off" after I forgot to tighten it once. After my son and I made an "EASE" run data logging, the car started to buck and did not have any power. He opened the hood and shook his head. The filter was laying on the bottom of the shroud! It does not run good w/o an air filter! We had shook lose the filter during a high speed acceleration run.
I have since changed out the conical with the Blackwing and am glad I did. I would guess, unless you have a failure in the electrical's somewhere, you have a big leak somewhere in the intake input.
[Modified by RWhite, 8:13 PM 11/14/2002]
I have since changed out the conical with the Blackwing and am glad I did. I would guess, unless you have a failure in the electrical's somewhere, you have a big leak somewhere in the intake input.
[Modified by RWhite, 8:13 PM 11/14/2002]
Thread Starter
Burning Brakes
Joined: Aug 2002
Posts: 929
Likes: 1
From: West Palm Beach FL
Re: Help! my new '03 is having some serious issues (Patches)
Check the intake assembly (filter box, MAF, and airbridge) to make sure everything is sealed and tight.
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Thread Starter
Burning Brakes
Joined: Aug 2002
Posts: 929
Likes: 1
From: West Palm Beach FL
Re: Help! my new '03 is having some serious issues (RPOZ4Z)
Ok well yeah I tried everything air wise. Now when it actually starts (very hard to get started) I cannot touch the gas as that does nothing or kind of makes it bog, my check engine light is on but it doesn't run long enough so I don't know if it stays steady or blinks, there is a nasty screeching sound, and well this thing isn't going anywhere by itself now. UGH! :mad :confused: :cry :sad:
[Modified by jdetar, 10:25 PM 11/14/2002]
[Modified by jdetar, 10:25 PM 11/14/2002]
Melting Slicks
Joined: Mar 2002
Posts: 2,931
Likes: 2
From: Tx
Re: Help! my new '03 is having some serious issues (jdetar)
Sounds like some unmetered air is getting in somewhere. You should take it to the dealer, but you may want to grab the codes that the computer set to help you understand what is going on. Follow these instructions https://www.corvetteforum.com/techtips/viewsubtopic.php?SubTopicID=25&TopicID=1 , you will not have to start the car. You can then lookup the code on the net and get some indication of what is going wrong.
BTW, MAF = mass airflow meter. It sits between the air filter and the throttle body (3"black tube with a 6-7 wire connector on the outside), and is used to measure the amount of air that the motor is using. The system relies heavily on what this sensor reads, since it is used in almost all of the fueling calculations.
[Modified by QuickSilver2002, 5:34 AM 11/15/2002]
BTW, MAF = mass airflow meter. It sits between the air filter and the throttle body (3"black tube with a 6-7 wire connector on the outside), and is used to measure the amount of air that the motor is using. The system relies heavily on what this sensor reads, since it is used in almost all of the fueling calculations.
[Modified by QuickSilver2002, 5:34 AM 11/15/2002]
Thread Starter
Burning Brakes
Joined: Aug 2002
Posts: 929
Likes: 1
From: West Palm Beach FL
Re: Help! my new '03 is having some serious issues (QuickSilver2002)
Ok I got the error codes:
10 PCM 0300 HC
A0 LDCM U1064H
A1 RCCM U1064H
A6 SCM U1160H
A6 SCM U1064H
The first one is engine misfire and the others are like lost communications with various things. It sounds like an electrical problem hence all the error codes. What is this misfiring doing to my engine though? Did I do any bad permanent damage?
10 PCM 0300 HC
A0 LDCM U1064H
A1 RCCM U1064H
A6 SCM U1160H
A6 SCM U1064H
The first one is engine misfire and the others are like lost communications with various things. It sounds like an electrical problem hence all the error codes. What is this misfiring doing to my engine though? Did I do any bad permanent damage?
Instructor
Joined: Jul 2002
Posts: 211
Likes: 0
From: Cape Coral FL
Re: Help! my new '03 is having some serious issues (jdetar)
The codes with the "H" at the end are HISTORY codes. The one with the HC shows it happened before "History", plus is a "Current" problem. So, concentrate on that one first.
The PCM means Powertrain Control Module. The 0300 should be preceeded by another letter, probably a "P".
It is reporting a misfire.
Running a vehicle out of fuel could cause a misfire that sets that code.
A restricted fuel filter could set that code if it causes a misfire.
Excessive vibration could cause a misfire DTC.
You could have an erratic crankshaft position sensor signal.
Your sparkplugs could be gas fouled.
A catalyst misfire could be occuring.
It could be many other things.
This could be a very simple problem, but the diagnosis is not. Without a service manual and scan tool, it's not very likely you're going to track the problem unless it is very obvious.
Was there anything that happened JUST BEFORE the problem started?
Good luck, but the dealer is better prepared to fix it.
Steve Nix
The PCM means Powertrain Control Module. The 0300 should be preceeded by another letter, probably a "P".
It is reporting a misfire.
Running a vehicle out of fuel could cause a misfire that sets that code.
A restricted fuel filter could set that code if it causes a misfire.
Excessive vibration could cause a misfire DTC.
You could have an erratic crankshaft position sensor signal.
Your sparkplugs could be gas fouled.
A catalyst misfire could be occuring.
It could be many other things.
This could be a very simple problem, but the diagnosis is not. Without a service manual and scan tool, it's not very likely you're going to track the problem unless it is very obvious.
Was there anything that happened JUST BEFORE the problem started?
Good luck, but the dealer is better prepared to fix it.
Steve Nix
Advanced
Joined: Oct 2002
Posts: 80
Likes: 0
From: Palm Harbor FL
Re: Help! my new '03 is having some serious issues (jdetar)
I'm at only around 1700 miles, did proper breakin (well good enough.. I did punch it once or twice from 40 at ~300 miles) and I'm about a half mile away from home and I notice it's driving a little weak, so I hit the gas down about half way to make sure I'm not just thinking it and most definitely there is a loss in power. :
Race Director
Joined: Mar 2001
Posts: 14,480
Likes: 132
From: PA
Re: Help! my new '03 is having some serious issues (brewtoo)
The complexity of these cars make it very difficult to diagnosis anything unless you are an experienced mechanic. Take the car to the dealer and get it fixed.
Thread Starter
Burning Brakes
Joined: Aug 2002
Posts: 929
Likes: 1
From: West Palm Beach FL
Re: Help! my new '03 is having some serious issues (Kenny94945)
Hi...Is the Vette out of gas?
Inaccurate fuel guage?
Inaccurate fuel guage?
I think I'll take it to the dealer anyways this week to have them check the calibration on the fuel gage. That sucks. What kind of damage was done to my engine do you guys think?
MONARTOR
Joined: Aug 2001
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Re: Help! my new '03 is having some serious issues (billreid1@***.net)
It's under warranty, you should take it to the dealer. :yesnod:
I'll second that :yesnod:
I'll second that :yesnod:
that a great idea