Question about 1995 Pontiac Grand Am

1 Answer

Coolant leak on my 95 Brand Am SE.

I have a coolant leak at the rear bottom of the engine. It is right around where the hoses go into the heater core. Just not enough room to get a good look at it, so I am having trouble finding the leak. Was wondering if this is a problem that is usual on Grand Ams with over 125,000 miles? I cannot see or feel the freeze plugs either, so I cannot tell if one of them is leaking or missing, I am trying to get the exhaust pipe off, but am having trouble with that as well. HELP! Any suggestions?

Thanks, Michael

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Pontiac Master
  • 2,039 Answers

Those heater core are made of plastic pipe they go in and aluminium radiator i seen that a million time the plastic at the jointion of radiator crack if it not that the block heater there in the back there more likely to leak then the frost plug lift the car up as mush as you can dont trust does jack put a safety leg under our never to carefull apply pressure on the prestone you should see the leak let me know good luck pierre

Posted on Jun 29, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Could my rear auxiliary heater core have a blockage?


It is not a blockage if coolant is leaking. Determine if the core itself is leaking or a loose hose clamp. Repair as necessary. Don't ignore it since running the engine pressurizes the hoses and will push out coolant causing engine overheating.

Sep 13, 2014 | GMC Envoy Cars & Trucks

2 Answers

How do I bypass the rear auxiliary heater core?


U must connect the coolant in hose to the coolant out hose with a u type metal hose by passing the heater core all together

Sep 13, 2014 | 2003 GMC Envoy

1 Answer

Coolant line under intake is leaking 95 town car


95 Lincoln town car coolant leak under intake SOLUTION EASY

Ok this is a 4" piece of hose leaking on a tube that runs under the intake manifold and fastens to the rear of the engine with 2 small bolts that are very hard to get to. The heater core hooks up to this tube with a 5/8 hose that's 3/4 on the other end going into the heatrer core.
Solution:
remove alternator
see clamp on hose?
remove it.
If you can't remove it, clamp vice grips on it and take a steak knife and cut through the hose towards the rear of the engine. Now with large screw driver pry the hose and clamp off the nub on the rear of the water pump housing. You may have to move the tube and remaining hose out of the way first. Just stick your hands in there and force it out of the way. Now you have a clean nub to hook a 5/8 bypass hose to. Here's where you get it. Go back to the heater core and and remove the hose that connects to this tube that runs under the intake. Just cut it where it hooks to the tube and remove it carefully from the heater core because this is now your needed bypass hose. Now with a couple feet of 3/4 hose and a coupler you have all you need to reroute this water outlet around the engine to the heater core. Take your hose you cut from the other end of the tube and removed from the heater core and and fasten it to the nub on water pump housing use new screw type stainless Steel clamps. You have to take this one apart to put it on. Stick a 3/4 coupler into the other end and route a long section of 3/4 hose under alternator to the heater core using SS clamps where needed. job done... Just leave the old tube where it is under the intake manifold......Thank you Very Much

Feb 14, 2012 | 1999 Lincoln Town Car

1 Answer

Friends got a pool of coolant forming in the back of her car whats the cause of that?


If the vehicle has a rear passenger heater, it may be that the coolant is leaking from the heater core or one of the hoses connecting the heater with the engine cooling system so you would need to get under the vehicle and visually check. This may also be a leaking heater core under the dashboard and the coolant is flowing over or under the carpet and pooling in the rear footwell.
Check for damp or wet spots in the carpet from the front to the rear of the vehicle with your hand and carefully check around the area where the heater core is mounted, this is usually undr the centre of the dash or behind the glove box. If this is found to be the area of the leak then the heater core will need to be removed and replaced or repaired. Removing the heater core is quite a daunting job as nearly all of the dashboard and fascia have to be removed along with all the electrical items mounted in this area. You may be able to bypass the heater core by connecting the two heater hoses under the bonnet together with a small length of pipe and then check to see if the coolant returns to the footwell. If it does not then the core is faulty. if it does then the issue may be in the rear heater (if fitted) and should be bypassed and checked in the same way.

Mar 08, 2011 | 1998 Volvo S70

2 Answers

Coolant leaked out; how do i repair?


TO FIX COOLANT LEAK.YOU HAVE TO LOCATE IT.BEST TIME FIND COOLANT LEAK WAIT UNTIL MORNING.ADD COOLANT UNTIL COOLANT LEVEL IN RADIATOR CORRECT. START THE ENGINE LET IDLE UNTIL START GETTING HOT.THEN TURN OFF ENGINE.COOLANT PRESSURE WILL PUSH COOLANT OUT WHERE LEAKS ARE.CHECK TOP RADIATOR HOSE AND BOTTOM RADIATOR HOSE.CHECK AROUND RADIATOR LOOK DOWN BELOW COOLANT FAN AREA BEHIND RADIATOR.LOOK FOR LEAKS AT RADIATOR CORES AND SIDE CONTAINERS.CHECK FOR COOLANT LEAKS AROUND WATER PUMP GASKET OR WEEP HOLE.CHECK FOR COOLANT LEAKS AROUND HEATER HOSES AND HEATER CORE.CHECK ENGINE CRANKCASE FOR COOLANT LEAKS.

Dec 13, 2010 | 2001 BMW 325

1 Answer

Car overheated and lost all power. how do I get it to start?


ENGINE NOT GOING TO START IF GET TOO HOT FIRST THING I WOULD REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP THEN ADD COOLANT UNTIL COOLANT LEVEL CORRECT THATS WHEN THERMOSTAT OPEN UP AND TOP HOSE HOT.CHECK FOR LEAKING RADIATOR HOSES CHECK TOP RADIATOR HOSE CHECK BOTTOM RADIATOR HOSE.CHECK FOR LEAKS AROUND THE RADIATOR LOOK DOWN BELOW COOLANTS FANS CHECK FOR LEAKS AT RADIATOR CORES OR LEAKS AT THE RADIATOR PLASTIC SIDE CONTAINERS. CHECK FOR LEAKS AT WATER PUMP WEEP HOLE AND CHECK FOR LEAKS AT THE HEATER HOSES AROUND ENGINE BLOCK TO THE HEATER CORE HOSES. THERE IS A REASON CAR OVERHEAT.IF CAR OVERHEAT WHILE DRIVING YOU HAVE FAULTY THERMOSTAT OR LEAKING OUT COOLANT OR BLOWN HEAD GASKET.IF ENGINE OVER HEAT WHILE SITTING DURING A LONG IDLING PERIOD.YOU COULD HAVE FAULTY COOLANT TEMPERATURE SENSOR OR FAULTY COOLING FAN FUSE OR RELAY.HOT WIRE COOLANT TO SEE IF IT RUNS IF NO REPLACE FAN MOTOR. IF YES FAN MOTOR COULD HAVE FAULTY WIRE OR PCM FAILURE. CHECK ENGINE CRANKCASE IF OIL LOOKS LIKE MILK SHAKE ENGINE HEAD GASKET LEAKING.

Nov 26, 2010 | 2002 Mitsubishi Galant

3 Answers

Water leaks from somewhere under towards the back of the engine and is over heating


There is a hose from the back of engine connecting coolant to heater core. Most of the time it leaks over there. If the hose is not crack, replace the clamp. If it is cracked, replace it. The engine is overheating since it is losing coolant. If you fix the leak, there will be no overheat. Why it leaks there, it is probably from coolant built up pressure too much it has to find the way out. Why the pressure is built up so much, because the thermostat is bad didn't open for coolant cycling through the engine. Therefore you need to replace the thermostat afterward. Cheers.

Sep 27, 2009 | 1986 Volkswagen Golf

2 Answers

CHANGING THE HEATER CORE OF AN 04 IMPALA


Drain the coolant. Remove the dashboard first, then a bunch of air ducts, then the heater core cover. Remove the heater hoses in the rear of the motor, and finally the heater core.

Feb 21, 2009 | 2004 Chevrolet Impala

2 Answers

My daughter's 1997 Saturn is leaking coolant and overheating..


Coolant leaks can occur anywhere in the cooling system. Nine out of ten times, coolant leaks are easy to find because the coolant can be seen dripping, spraying, seeping or bubbling from the leaky component. So open the hood and visually inspect the engine and cooling system for any sign of liquid leaking from the engine, radiator or hoses. The color of the coolant may be green, orange or yellow depending on the type of antifreeze in the system. The most common places where coolant may be leaking are:Water pump. A bead shaft seal will allow coolant to dribble out of the vent hole just under the water pump pulley shaft. If the water pump is a two-piece unit with a backing plate, the gasket between the housing and back cover may be leaking. The gasket or o-ring that seals the pump to the engine front cover on cover-mounted water pumps can also leak coolant. Look for stains, discoloration or liquid coolant on the outside of the water pump or engine.Radiator. Radiators can develop leaks around upper or loser hose connections as a result of vibration. The seams where the core is mated to the end tanks is another place where leaks frequently develop, as is the area where the cooling tubes in the core are connected or soldered to the core headers. The core itself is also vulnerable to stone damage. But a major factor in many radiator leaks is internal corrosion that eats away from the inside out. That's why regular coolant flushes and replacing the antifreeze is so important.
oses. Cracks, pinholes or splits in a radiator hose or heater hose will leak coolant. A hose leak will usually send a stream of hot coolant spraying out of the hose. A corroded hose connection or a loose or damaged hose clamp may also allow coolant to leak from the end of a hose. Sometimes the leak may only occur once the hose gets hot and the pinhole or crack opens up. Freeze plugs (casting plugs or expansion plugs in the sides of the engine block and/or cylinder head). The flat steel plugs corroded from the inside out, and eventually eat through allowing coolant to leak from the engine. The plugs may be hard to see because they are behind the exhaust manifold, engine mount or other engine accessories. On V6 and V8 blocks, the plugs are most easily inspected from underneath the vehicle.
Heater Core. The heater core is located inside the heating ventilation and air conditioning (HVAC) unit under the dash. It is out of sight so you can�t see a leak directly. But if the heater core is leaking (or a hose connection to the heater core is leaking), coolant will be seeping out of the bottom of the HVAC unit and dripping on the carpet. Look for stains or wet spots on the bottom of the plastic HVAC case, or on the passenger side floor.
Intake Manifold gasket. The gasket that seals the intake manifold to the cylinder heads may leak and allow coolant to enter the intake port, crankcase or dribble down the outside of the engine. Some engines such as General Motors 3.1L and 3.4L V6 engines as well as 4.3L, 5.0L and 5.7L V8s are notorious for leaky intake manifold gaskets. The intake manifold gaskets on these engines are plastic and often fail at 30,000 to 80,000 miles. Other troublesome applications include the intake manifold gaskets on Buick 3800 V6 and Ford 4.0L V6 engines.
INTERNAL COOLANT LEAKS
There are the worst kind of coolant leaks for two reasons. One is that they are impossible to see because they are hidden inside the engine. The other is that internal coolant leaks can be very expensive to repair.


visit for more info:

http://www.aa1car.com/library/coolant_leaks.htm

Nov 24, 2008 | 1996 Saturn SL

1 Answer

Leaking coolant by pass.side-middle close to firewall. eng.temp gets hot


Sounds like the water pump, it will fling coolant as it leaks when the engine is running, also check the heater hoses and if coolant seems to come from the bottom of car and not the engine then it is a heater core leak.

Oct 13, 2008 | 1998 Pontiac Grand Am

Not finding what you are looking for?
1995 Pontiac Grand Am Logo

Related Topics:

160 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

60960 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...