heater core?????????
Thread Starter
Instructor
Joined: Feb 2000
Posts: 206
Likes: 0
From: gainesville tx
heater core?????????
i just noticed my passenger side carpet is soaked and i was wondering if it is my heater core? i checked the archives and cant find anything on c5s.
i dont smell antifreeze, the car heats up fine and it did rain quite a bit this past weekend so im hoping its just a drain clogged up
if anyone has any suggestions or can point me in the right direction it would be appreciated. :confused: :confused:
i dont smell antifreeze, the car heats up fine and it did rain quite a bit this past weekend so im hoping its just a drain clogged up
if anyone has any suggestions or can point me in the right direction it would be appreciated. :confused: :confused:
Thread Starter
Instructor
Joined: Feb 2000
Posts: 206
Likes: 0
From: gainesville tx
Re: heater core????????? (wantavette)
after further research i see that it may be a clogged evaporator drain?
can someone tell me where to find these drains
anybody? :confused: :confused: :confused:
can someone tell me where to find these drains
anybody? :confused: :confused: :confused:
Burning Brakes
Joined: Dec 2000
Posts: 993
Likes: 5
From: Cincinnati Ohio
Re: heater core????????? (wantavette)
wantavette,
This problem must be corrected immediately!
This past summer, while driving out-of-state on vactation, the evaporator drain clogged on my 1999 C5 coupe. Water began to leak under the dash and into the PCM compartment. The water followed the wiring and entered the PCM computer. I did not realize the water was leaking until the car went "haywire". The horn began to honk, the hatch released repeatedly, the guages kept "sweeping", the locks repeatedly cycled, and the car finally shut down.
If you have a mat on the right side, it will also hide the water leak and soak up the water. The computer compartment cover is not waterproof.
The PCM was ruined and had to be replaced. The seat and carpeting had to be removed and the carpet dryed. This design and placement of the computer is poor and invites trouble.
The dealer/mechanic stated he cleaned "junk" out of the drain tube. I never park the car under trees and it is always garaged. It is also never driven in the rain or snow, or on dirt roads. I have no idea what clogged the drain, but I suspect is is too small to handle a lot of condensation from the evaporator. The mechanic stated he had repaired several C5 Corvettes with the same problem.
The rubber drain hose exits the firewall, between the firewall and the right exhaust manifold. The engine must be cool to reach it from the engine compartment. It can be reached underneath the dash, when the evaporator cover is removed.
Good luck.
1999 White C5 Coupe
[Modified by 1999 White C5 Coupe, 10:04 AM 12/19/2001]
This problem must be corrected immediately!
This past summer, while driving out-of-state on vactation, the evaporator drain clogged on my 1999 C5 coupe. Water began to leak under the dash and into the PCM compartment. The water followed the wiring and entered the PCM computer. I did not realize the water was leaking until the car went "haywire". The horn began to honk, the hatch released repeatedly, the guages kept "sweeping", the locks repeatedly cycled, and the car finally shut down.
If you have a mat on the right side, it will also hide the water leak and soak up the water. The computer compartment cover is not waterproof.
The PCM was ruined and had to be replaced. The seat and carpeting had to be removed and the carpet dryed. This design and placement of the computer is poor and invites trouble.
The dealer/mechanic stated he cleaned "junk" out of the drain tube. I never park the car under trees and it is always garaged. It is also never driven in the rain or snow, or on dirt roads. I have no idea what clogged the drain, but I suspect is is too small to handle a lot of condensation from the evaporator. The mechanic stated he had repaired several C5 Corvettes with the same problem.
The rubber drain hose exits the firewall, between the firewall and the right exhaust manifold. The engine must be cool to reach it from the engine compartment. It can be reached underneath the dash, when the evaporator cover is removed.
Good luck.
1999 White C5 Coupe
[Modified by 1999 White C5 Coupe, 10:04 AM 12/19/2001]
Thread Starter
Instructor
Joined: Feb 2000
Posts: 206
Likes: 0
From: gainesville tx
Re: heater core????????? (1999 White C5 Coupe)
thanx
ill go and try to find it! does anyone have pics to help me find it?
is it easier to go under the dash or under the car to get to it?
ill go and try to find it! does anyone have pics to help me find it?
is it easier to go under the dash or under the car to get to it?
I'm "Apache" a psycho dog
Joined: Jan 2001
Posts: 3,085
Likes: 31
From: N.J.
Re: heater core????????? (wantavette)
After a 80 mile drive in the rain i noticed the next morning that an item that i had put in the pass footwell was damp, so i felt around the floor and it to was wet mostly near the sear mounts not near the PCM area, i suspect water leaked past the door seal and under the black plastic scuff guard, as unbelievable as that might seem, im am going to monitor to see if it is another source. In any case this is B.S. not acceptable in high $ car. :mad
