Question about 1996 Oldsmobile Ninety Eight Regency

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Coolant leak to tension wheel

Coolant coming out of Block to plastic elbow going into unibelt tension wheel.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: water leaking/pouring from around the elbow pipe

It sounds like a pump is going out?

Posted on Nov 17, 2009

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SOURCE: coolant leaking from in between the fly wheel and

Check hose pipe, sealant of the block.
Pls vote!!

Posted on Sep 24, 2011

ercupa190
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SOURCE: coolant leaking from hose or plastic piece going into fire wall on 1999 olds van. what is plastic piece called?

identify the part from the diagram attached. God bless you

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Posted on Oct 18, 2012

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1 Answer

2006 pontiac grand prix smells antifreeze in car


Is there coolant leaking inside the car? Check the floor under the passenger side dashboard. If the carpet is wet your heater core is leaking.

If the floor is dry check the coolant elbows going from the block into the automatic belt tensioner. That's inside the engine compartment. They are notorious for leaking. You may not be able to see the leak because it drips onto the block and evaporates. That's what the smell may be.

Search google images for "3800 series 3 coolant elbow" to see the part I am talking about.

The only way to find a coolant leak is to pressurize the cooling system. You can rent a coolant pressure tester from an auto supply store. Pressurize the system and look for leaks. You may have a leaking water pump.

The elbows can be purchased from the dealer. The water pump you can get from an auto supplier. Might as well change the thermostat while you are doing the other repair. Drain the cooling system and refill with fresh dex coolant.

Make sure you bleed all of the air out of the system or the car will overheat.

May 08, 2014 | 2006 Pontiac Grand Prix

1 Answer

3100 engine antifreeze leaking from area under a


  • There is 1 or 2 elbows (plastic from factory) that connect the coolant channels from the engine block to the tensioner pulley housing. Mine only had one (in front, visible and disintegrated) and in the back, the pulley housing had a nipple (cast) that had o rings and was inserted into the back coolant hole in the block.
  • You need to make sure to remove all bolts holding the tensioner housing on.
  • Swivel and/or wiggle the pulley housing off very slowly so as not to break that nipple off of the pulley housing.
  • The parts stores only sell the elbows in 2 packs, but they do have metal instead of the original plastic.

Jan 25, 2014 | 1998 Buick Regal

1 Answer

I have a 98 Olds Intrigue. It is leaking coolant and water from somwhere on the passenger side of the motor. Replaced water pump and radiator is fine. Any ideas?


Depending on what engine you have, the 3.8 has a plastic elbow coming out of the lower intake manifold that goes to the belt tensioner assembly, which has 2 hoses coming out of it for the heater hoses. That elbow likes to crack. The older 3.8 has a nipple there which also likes to crack that runs to the heater core. Either way that's where i'd be checking first.

Oct 20, 2010 | 1998 Oldsmobile Intrigue

2 Answers

How do you change out a heater hose elbow in a 2005 buick lacrosse


cool car down and drain the radiator, usually a spigot or valve at the bottom. remove the clips or clamps holding the hose on, pull hose off. get a new hose from any parts store, sometime helps to have the old one with you. install new one, put on new clamps and tighten firmly, pour in new coolant. check your owners manual to see what kind of coolant Buick recommends.

Oct 04, 2010 | 2005 Buick LaCrosse

1 Answer

Belt tensioner has hairline split causing water to leak and overheat.2000 buick lasabre 3800 engine,380 motor


yes belt tesioner is internal part of cooling system it has two plastic elbows with o-rings that crack crumble and deterioate haven,t seen crack in aluminum part though but remove belt by releasing tensioner remove alternator and idler pulley then remove bolts holding tensioner assembly to head and block this entire thing can be purchased thru napa i know but do not reuse the plastic elbows and make sure to lubricate the o-rings on new elbows so when istalled puthe the elbows in the assembly first lower it in place lined up with waterholes and gently push in and slide in place

Aug 05, 2010 | Buick LeSabre Cars & Trucks

1 Answer

Plastic L shaped hose next to serpentine belt and altenator is cracked and antifreeze leaks out of it. How difficult is this to replace and what is the part called???


That is the coolant inlet elbow for your alternator bracket/tensioner pulley assembly, very easy to fix.

Just let the motor cool off first and have more coolant handy.


Mar 16, 2010 | 2003 Pontiac Bonneville

1 Answer

Leak at hose coming from front of intake going to belt tensioner


very common problem as it is made of plastic.. dealer item approx $50 , i believe there are 2 of these little elbows in that area , replace both of them.. you will have to drain the coolant and remove the tensioner to replace them.

Jul 16, 2009 | 2002 Pontiac Grand Prix

2 Answers

I have a water leak coming from my engine block. How to repair 2001 Buick 3.8 It is come out of a 5/8 pipe or around it


If it's a hose, best bet is to just replace it, and use new clamps.

If it's leaking where it's connected to the nipple, for a quick fix, you can remove the hose, cut the hose off past the leak, and reattach it.

This requires a little bit of slack in the hose, but if the leak is right at the connection, there should be enough slack in the hose to do this.

May 05, 2009 | 1998 Buick Riviera

2 Answers

1996 Buick Regal Sport - Leaking Plastic Elbow


YOU NEED TO REPLACE THE BELT TENSIONER.
IF YOU BUY THE CARTER BELT TENSIONER AT ADVANCED AUTO, IT COMES WITH: A PLASTIC ELBOW WITH O RINGS, TENSIONER, PULLEY, NEW O RING WHERE THE BELT TENSIONER MATES TO THE ENGINE BLOCK AND NEW O RINGS FOR THE INLET AND OUTLET CONNECTIONS ON THE BELT TENSIONER TO THE HEATER CORE (COST $72).
IF YOU DON'T REPLACE ALL THE ABOVE O RINGS THEN YOU CAN EXPECT MORE LEAKS.
IN ORDER TO REPLACE THE PLASTIC ELBOW YOU MUST REMOVE THE BELT TENSIONER ANYWAY. IF THE BELT HAS SEVERE CRACKS REPLACE IT ALSO.
STEPS:
-REMOVE BELT
-DISCONNECT BATTERY
-DRAIN ANTIFREEZ AND DISCARD
-REMOVE ALTERNATOR
-REMOVE BELT TENSIONER
-REMOVE PLASTIC ELBOW (DO NOT ALLOW BROKEN PIECES PLASTIC OR DIRT TO GET INSIDE THE ENGINE WATER CAVITIES.
-CLEAN ALL CONNECTION WHERE O RING WILL MATE.
-TO REASSEMBLE GO IN REVERS ORDER
-REFILL THE RADIATOR WITH COOLENT 50% MIX USE THE 5 YR GUARANTEE TYPE.
-MAKE SURE THE COOLENT RESERVIOR IS
FILLED TO THE HOT LEVEL MARK.
-RUN THE ENGINE UNTILE IT IT REACHES THE 1/4 % TEMP MARK ON THE TEMPERATURE GAUGE THEN TURN THE ENGINE OFF AND OPEN THE BLEED SCREW ON TOP OF THE THERMOSTAT HOUSING.
ALLOW THE AIR TO EVACUATE, YOU WILL SEE COOLENT COME OUT THEN CLOSE THE BLEED SCREW.
-BE VERY CAREFUL WHEN YOU OPEN THE RADIATOR TO REFILL TO THE TOP.
-REPEAT THIS ONE MORE TIME.
-RUN THE ENGINE AND KEEP YOUR EYE ON THE TEMPERATURE GAUGE' IF THE TEMPERATURE GOES BEYOND THE 1/2% MARK, SHUT DOWN THE ENGINE QUICKLEY AND LET THE ENGINE COOL.
THIS MAY TAKE HOURS TO COOL DOWN BUT THE COOLING SYSTEM WILL TURN FROM PRESSURIZED TO VACUUM AND DRAW COOLENT FROM THE RESERVOIR TO REFILL THE SYSTEM.
YOU WILL NOTICE THE LEVEL DROP IN THE RESERVOIR .

Sep 22, 2008 | 1996 Buick Regal Olympic Gold

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