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1995 Chevy Lumina APV Coolant Leak

1995 ALL OTHER MAKES ALL OTHER MODELS
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THE BIGDAWG
  • MEMBER
  • 3 POSTS
Noticed antifreeze leaking from just behind the drivers side door onto the driveway. Inside i noticed that right behind the drivers seat there is antifreeze on the floor pooling in the brackets that the passernger seats lock into.

Any idea?
Jul 9, 2006 at 4:52 PM
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THE BIGDAWG
  • MEMBER
  • 3 POSTS
There is a panel that comes off and I can see the fan that is for the rear vents as well as some tubing. Its somewhere in here that the fluid is leaking. I can hear it hissing when my car was hotter today and the leaking is getting worse.

Why would there be antifreeze running back there? For what purpose? Any idea on what is leaking, I will have to rip the whole side panel stuff off to get a better look at where its coming from.
Jul 11, 2006 at 5:32 PM
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MIKEYBDMAN
  • ✓Experienced Mechanic
  • 623 POSTS
Your heater core has gone bad or leaking. This is a major pain of a project, but one you can do yourself. You are going to have to take the ducting off the bottom and gain access to your heater core to see if it is bad or just the lines leaking going into it. Some cars you have to take the entire dash out to gain access, but hoepfully your will be easier.
Look under the hood and see where the two water hoses are going into the firewall, and that will give you an idea of about where it is located in the car.
You will have a total of 4 lines going in, but two are with the airconditioning system, and 2 are with the heater core system.
Good luck, and hopefully you will get away with less than a $100 fix.
On a side note, that radiator fluid will stink for ever if you dont clean it properly. Make sure you dry up all you can from under your carpet, and after you get it back together, have your carpets steam cleaned.
Jul 13, 2006 at 8:27 AM

Suggested Repair

Inspect the heater core and the two heater lines behind the driver-side interior panel. Remove the lower ducting for access, repair or replace the leaking core or lines, and thoroughly dry and clean the carpet so the coolant odor does not remain.

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Conversation Summary

The owner of a 1995 Lumina APV reports antifreeze leaking behind the driver door and pooling on the floor near the seat brackets. A side panel reveals a rear vent fan and tubing, and the leak hisses and worsens when the vehicle is hot. The expert says the heater core or its inlet lines are leaking, recommends tracing the heater hoses at the firewall and removing ducting for access, and advises thoroughly cleaning the carpet after the repair.

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