Problem with '00 Badly Need Help!
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,375
Likes: 3
From: East Tn.
Problem with '00 Badly Need Help!
Driving home from town today, the check engine light came on and the engine begins to run roughly like a dead miss and runnig rich on left side (Smoke coming from left exhaust). When the clutch is fully disengaged, there is a knocking sound coming from the rearend but I belive it is because the engine is running rough.
I pulled into the garage, checked for codes and every code was followed by an H for history. The check engine light is on, so the ECM knows something is wrong yet no codes.
Any ideas?
Thanks,
Bobby
I pulled into the garage, checked for codes and every code was followed by an H for history. The check engine light is on, so the ECM knows something is wrong yet no codes.
Any ideas?
Thanks,
Bobby
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
First, some codes are followed by both an "H" and a "C" ... meaning that the problem occured before (H - History) and also is occuring now (C - Current), so look carefully at the codes as you are almost sure to have a C code from the PCM with the Check Engine Light (CEL) on.
Easiest to read them in manual mode .... see :
https://www.corvetteforum.com/techti...D=26&TopicID=1
for details on how to read them manually.
Even if no C codes (however unlikely) list the PCM codes (they start with P) that are listed as they may give an indication as to where the problem is coming from.
Last, take a look at spark plug wires, see if any are loose from either the plug or coil ends, and look for wires that may have been damaged by contact with the exhaust manifold (or near contact) or by rubbing against another part.
HTH
Easiest to read them in manual mode .... see :
https://www.corvetteforum.com/techti...D=26&TopicID=1
for details on how to read them manually.
Even if no C codes (however unlikely) list the PCM codes (they start with P) that are listed as they may give an indication as to where the problem is coming from.
Last, take a look at spark plug wires, see if any are loose from either the plug or coil ends, and look for wires that may have been damaged by contact with the exhaust manifold (or near contact) or by rubbing against another part.
HTH
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
Originally Posted by BobbyG123
Was just down checking the timing on the coils just for giggles and a code was finally thrown: PO300 - missing on multiple cylinders. Off to the dealership tomorrow. 
Again, HTH
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Also, check the white connector to the left side that connects all the coils to the harness. Almost sounds like you lost your entire bank on that side. I haven't looked at the fuse layout, it might be right/left bank and worth checking also. Things like this are usually simple (once you find it).
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,375
Likes: 3
From: East Tn.
Thanks for all the help. All wires are properly seated. Going to stop worrying with the car being Thanksgiving and all. Just hoping the delaership can fit me in tomorrow. On another note, does anyone know of a good vette shop in east TN (I am 50 miles from Knoxville and 50 miles from Chattanooga)
Thanks,
Bobby
Thanks,
Bobby
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Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
Originally Posted by BobbyG123
Well, it ended up being a broken pushrod. Right there is my lesson to never let anyone drive my car (at least without me in it) 
Good luck, hopefully the broken push rod did no other damage and the fix will be relatively simple.
Steve