Question about 1997 Pontiac Bonneville

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A little elbow leaking water behind the belt - 1997 Pontiac Bonneville

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That little elbow must have a gasket on it, where it meets another pipe, and that seal must be bad. If that little elbow is made of metal and has a hole directly in it, you will have to change that little elbow.

Posted on Sep 28, 2010

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Posted on Jan 02, 2017

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Behind the water pump it leaks antifreze its not the water pump but the hose from the radiator hook up to this metal tube and goes to the water pump that join is leaking does it have a gasket in between or...


you talking about water pump bypass heater pipe the metal elbow piece to the water pump hosing.the metal elbow piece is held in place by small bolt or bolts you should have either gasket or o ring betwween where metal elbow mounts to water pump housing.replace the hoses also.some times the hose will be leaking not gasket or o ring at the metal elbow.make sure screw or screws not loose or missing to the metal elbow pipe.

Apr 17, 2011 | 1997 Geo Metro

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Leaking coolant.. its hard to see where it is coming from.. it leaks out heavily when car is cranked,, it looks like it is comin from right behind the belt drive (the bigger one) is that the water pump?


This does sound like your water pump is leaking, or your head gasket has busted on the outside edge. I would check the water pump first, as it is fairly common for the seal to bust and leak coolant from the water pump.

Feb 16, 2011 | 2004 Pontiac Grand Prix

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 elbow with o-rings is leaking elbow goes into belt tensioner housing and above water pump. How do I replace it?


you will need to loosen housing to replace the elbow. Very common to leak, any parts store will have it.

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1 Answer

Jetta TDI Coolant leak from behind tming belt.


hi from uk from the symptom/location you say water leak is coming from ? this is most likely to be the water pump that is leaking ? considering age/milage ? this is not uncommon however as the water pump is driven by cambelt this unfortunately means you will have to replace the cambelt and tensioner as well as the water pump it is policy never to use old belt/tensioner once disturbed for obvious reasons i'm sure you have heard stories of result of cambelt failure? and the serious damage caused to engine ? also if leak is serious? this will deteriate c/belt so advice you consider renewal asap cambeltkit +tensioner in uk casts approx under £45 and w/pump a little less you can obtain from most good motor factors/superstores avoid dealers this job is not too difficult diy with haynes or w/shop manual if you follow instructions and have tool kit hope this helps?

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Wet floor passanger side


Air conditioning drain stopped up with debris (leaves,pine straw,sticks). Small tube sticking out from firewall with rubber elbow pointing down behind engine, passenger side. If elbow missing air will cause water to back up into vehicle. Another possibility, if your coolant is low heater core leaking.

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1 Answer

Leaking coolant


These plastic elbows (3.8L Engine) do fail. To the best of my knowledge this is a dealer only item, which is not a big deal as the cost is low (in terms of car repair). Remove the alternator to gain access to the elbow. Monitor the coolant level following repair.

As you probably know, don't let the engine run low on coolant as engine damage will follow.

Nov 19, 2008 | 1998 Pontiac Bonneville

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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