1998 Pontiac Grand Prix LEAKING IN THE CAR

Tiny
SWEETGAL
  • MEMBER
  • 1998 PONTIAC GRAND PRIX
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 120,000 MILES
HI ON THE INSIDE OF THE PASSENGER SIDE IT IS LEAKIN ON THE FLOOR AND I WAS WONDERING IF U COULD TELL ME WHAT IT MIGHT BE AND HOW DO I FIX IT AND IS IT HARD TO FIX? I THINK THAT IT IS THE HEATER CORE BUT I HAVE ONE ON THE OUTSIDE IS THERE ONE ON THE INSIDE? PLEASE LET ME KNOW I NEED TO GET IT FIX BEFORE WINTER GETS HERE SO THE KIDS WONT BE FREEZING THANKS SWEETGAL
Monday, November 24th, 2008 AT 1:13 PM

2 Replies

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
The heater core is on the inside, and if leaking, would need to be replaced.

Shop around with ASE certified garages for replacement costs.
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Wednesday, November 26th, 2008 AT 6:34 AM
Tiny
KYLEV
  • MEMBER
  • 1 POST
I had the same thing happen with my 99. After heavy rain I noticed about 3 inches of water on the passenger floor. The water was entering through the cabin air intake, through the blower motor. Call a pontiac parts dealer and ask about an updated cowl insert (only cost about 5 bucks)

Process involved removing wipers and cowl. Not too hard. You may aswell change the air filter in there too, mine was soaked.

Unfortunately my blower motor shorted out and had to be replaced but otherwise an easy fix
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Thursday, November 27th, 2008 AT 2:57 PM

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