Question about 1998 Buick LeSabre

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98 buick lesabre water leak on rear floor board

Posted by Anonymous on

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Posted on Jan 02, 2017

  • 82 Answers

SOURCE: need to replace heater core in 1993 buick. water

the core is under the middle of the dash - look in under hood - you will see 2 aluminum pipes going behind motor into firewall - these are a/c lines - close to this you will also see 2 black hoses about thumb size - these are the heater hoses to the heater core - the dash might have to come out to get heater core from a/c fan housing

Posted on Sep 21, 2009

  • 6 Answers

SOURCE: 2000 buick LeSabre - rear leveling system problems

The rear leveling trip switch is located on driver's side near rear air shock on the frame. Check for leaks in air line.

Posted on Oct 21, 2009

  • 15 Answers

SOURCE: I continue to get water on the right rear floor of

Do you notice this after it rains>> This seems to be a common problem with Dodge Vehicles.

There is a seal on the passenger side Hood Hinge area. If this seal is cracked or broken or missing you will get water in the car every time it rains.
The water runs down the windshield in to the Hing area under the Hood.

You may need to take the hood off to get to the seal. First pour water over the area, if it comes in the car there is your problem.

You can seal it with any water proof silicone sealer .

Posted on Nov 11, 2009

  • 7353 Answers

SOURCE: how do u remove the rear deck to install speakers 98 buick

take the back seat out

Posted on Apr 23, 2010

  • 6982 Answers

SOURCE: water leaks on passenger side floor board when run

You need to carefully look just at or slightly below bottom of the air conditioner housing on the engine side of the firewall. Probably more visible from underneath the car. What you are looking for is a small rubber stub hose that sticks out from the wall. If that gets plugged (it's a drain for condensation) water will back up into the housing and leak on the floor. usually you can clear it by rolling the end between your fingers or sticking s short object in the end (not too long or too hard or you can punch a hole in the evaporator or heater core). if you have a problem finding it, cruise through a parking lot 'till you see a car like yours and ask to look.... Make sure their a/c works and drains though so you can find it.
It's best to look with the engine and ac on so it's actually working. NEVER put your hands into the engine bay when the engine is running though!!!

Posted on Jun 03, 2011

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What is causing water on the rear floor board of the passenger side?

I had a water leak in my back floor on my LeSabre. I changed out the rubber weather stripping and no more leak. Also make sure your door is not sagging.Hope this helps GOD BLESS!!

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is your passenger side floor board wet? is so its your heater core. if not i have no clue what to tell you

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When driving my 1999 Buick Lesabre in rain water will appear in the floor well on passenger side in the back. The water comes from under the carpet as much as an inch. The 4 surrounding sides of the floor...

Hey Gary!

I have noticed this condition in a few cars and have found the solution to be one of the following in each incidence ;
Cause :The drain plug in the floor board was dislodged / missing.
(assume that someone had spilled or inundated the rear compartment floor pan at one point and dislodged the plugs to relieve the excess?).
Correction : reseal the plug holes (bung holes).
Inspection proposal ;
Lay on the ground and inspect the underside of the suspect area of the vehicle. Note the 2.5 inch diameter simetrical holes with black rubber plugs protruding them.
Note condition and presence of plugs.

The front right inner fender (plastic liner that isolates the splash from tread water exhaust) is compromised , allowing the water to flow from the tire to the interior rear floor pan via the hollow thresh hold under the doors (assuming they have not rotteed out yet) to the point in the upper structural pillar between the front and rear compartments.

Solution ; GREATSTUFF the area and paint with a matching paint color.

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1 Answer

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Does the leakage smell like coolant if so most likely the heater core, if it is just plain water the evaporator core, and heater core box could have a leak from being cracked letting the condensation leak into the floor especially if the evaporator drain tube is clogged. If it only does it when it rains well roll all the windows up shut doors run a water hose all over where there is wheather strippping to see if it seeps in.

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