Question about 1995 Pontiac Grand Am

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1995 Gran Am 4 cylinder. I want to back flush my cooling system using the Prestone ''Flush 'N Fill Kit. Where do I insert the Tee? I do not know which is the radiator inlet hose as this is where Prestone directions indicate the proper place of insertion. Thanks, Dennis.

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  • Pontiac Master
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Insert the tee by cutting one of the heater hoses and clamping it to the two ends that result.

determine which one is the inlet hose. It is further away from the water pump housing so that when you backflush through it, it also flushes out the heater core.

Hope this helps.

Posted on Jul 14, 2010

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How to flush heater core


Simple. You find the heater hoses feeding the heater core. Typically they are a smaller diameter then radiator hoses and they both run to the firewall. You will need to determine which one feeds the heater core ...the input hose. Once you know that ...check a Taurus owners forum or Google it ...then run your water through the heater core from the output side. The idea is to back flush the core in the hopes you knock loose the crud with high pressure water flow.

This heater core flush is usually done in conjunction with flushing the entire cooling system. Do the cooling system flush first then the heater core. When you do the system flush, use some flush agent ...Prestone makes it. If the directions say use one bottle, use two. The stuff is generally not all that potent and designed not to contaminate the ground water. Which means it's fairly lame stuff. Use two bottles.

Mar 08, 2015 | 2003 Ford Taurus

Tip

How to Flush the Cooling System.


Normally the engine operates at 195F, unless you have replaced the thermostat with another one at 185F. If the temperature has a tendency to rise up, the reason is a partially obstructed cooling system or/and a bad thermostat.The first part of the cooling system that gives up is the heater core, because the coolant flowing channels are thin. It is the time for a coolant flush in your car. To do it right then you need time. Plan ahead for a weekend. With a cooled engine, start with the heater core hoses. Disconnect both of them, but the dirt has to go out of your car, so with a garden hose back flush it and let the dirt to get out of your cooling system. After you will get clean discharge,it is the time for coolant bottle, remove it, discharge the used coolant and clean it. The third to come is the radiator. Open the drain cook, or disconnect the lower radiator hose, and disposal used coolant properly. Now open the radiator cap and flush with water the radiator till discharge will be clear.You think that you are done? Not yet. There is half of old dirty coolant trapped in the system. Install everything, and connect all coolant system hoses, radiator, heater core and coolant bottle. Now you have to run your car with water. Fill out the cooling system with distilled water, start engine, turn on the heater high, and run till upper radiator hose get hot. That means the thermostat opens. Let the engine to cool down, open the radiator cap, and draining cook or lover radiator hose and drain everything. You can use flush detergent, if you wanted, at this stage, but flushing with detergent will add 4 more hours, because the detergent is colorless and you have to guess how many fill and drain processes to do, to get rid of it. I do not do it, but if your cooling system is very dirty you have to do it. After the last drain, fill the cooling system with concentrated antifreeze and 30% distilled water. The reason is because it is more water trapped inside the cooling system. The goal is to reach 50/50concentration. You need a coolant tester to find this. Start the engine and add coolant till radiator is full. Install the radiator cap and bleed the system. After driving you car for a day or so, let engine to cool down, open the radiator cap check the concentration of coolant with the tester, and add antifreeze or distilled water as necessary. It is a good idea to replace the thermostat while flushing the radiator. This procedure has to be done every 2 to 3 years. It is up to you to decide to use RED GM Dex-Cool or GREEN Prestone antifreeze. In all my cars I have replaced Dex-Cool with Prestone, but I flush the system every 2 years, and I never had a cooling system problem in all my cars.

on Nov 14, 2010 | Chevrolet Avalanche Cars & Trucks

2 Answers

Drained radiator added prestone Radiator flush refilled and started overheating, drained radiator replaced thermostat and now I get no heat from heater,Radiator water is hot


disconnect the heat hoses going into fire wall , put hose into one with pressure and flush as it sounds like it could be bloked in the heater core,the other thing that could be the problem be the hot ,cold switch as it restricts the flow to makes the heater hoter or colder , it might need tlc or replacing as it is manaul not elec

May 08, 2012 | 1995 Toyota 4Runner

1 Answer

Is prestone ok for 2000 malibu


prestone should be perfectly fine for your malibu, however i would suggest flushing the cooling system before adding it. flushing it is a fairly simple process which can be done for $20-$30 and can be done at any carwash. :) forget the outrageous prices dealers charge.

Nov 01, 2011 | 2000 Chevrolet Malibu

1 Answer

MY 1997 PONTIAC GRAD AM IS OVER HEATING AND I NEED TO NO WHAT THE RIGHT ANTIFREEZE TO PUT IN IT 3.1L V6


The GM recomend using GM Dex-Cool Red Coolant.
The matter of fact is that many consumers has filed out complaints againts GM Dex-Coll Reed Coolant.
http://www.consumeraffairs.com/news04/2006/08/gm_dexcool.html
http://www.consumeraffairs.com/news04/2008/09/dexcool_settle02.html
http://www.consumeraffairs.com/automotive/gm_dexcool.html
We replace it with:
ANY COLOR ANTIFREEZE
ALL MAKES ALL MODELS
of cars and light trucks
add to ANY color antifreeze
PRESTONE.

It's up to you. Ask before, but if you decide to change the type of coolant then:
If your intention is to add coolant only, then you need:
PRESTONE 50/50
PREDILUTED ANTIFREEZE/COOLANT

If your intention is to flush the RADIATOR (Cooling System), then you need:
Mix with
ANY COLOR ANTIFREEZE
ALL MAKES ALL MODELS
of cars and light trucks
add to ANY color antifrezze
PRESTONE
EXTENDED LIFE up to 150000/mile 5 year protection.
On the back you have to read directions:
Step 1 Drain. Step 2 Flush. Step 3 Fill.
Recommended to ad 30% volume distilled water to 70% volume Antifreeze. If you flush the system and rinse with water you must add only 30% water to the antifreeze. There is more water trapped inside the engine compartment, because the thermostat is closed. Make sure to have a coolant density tester. When you finish one of 5 balls must sink, that indicates that you reached 50/50 strength. That means 50% Prestone and 50% Water, which will provide to your car a -34F degree FREEZE-UP Protection , and +265F degree BOILOVER protection. Make sure to open bleeding valve to discharge air pockets from the cooling system. Add coolant.The next day,while engine is cold open the radiator cap, and test the strength of coolant. If it is not quite right, then siphon coolant from the radiator and add antifreeze, or distilled water as necessary.
Let the car to cool down overnight and start engine. The cooling system might be cold. Untwist the coolant bleeding nipple. If there will be a jet or stream of coolant, that means the water pump is working and is O.K. After replace the thermostat. If still your car overheats then it might be a bad cylinder head gasket.

Nov 06, 2010 | 1997 Pontiac Grand Am

1 Answer

I have a 1997 chevy lumina what kind of antifreeze should i use?


The dealer recommend GM Dex Cool Antifreeze.
But there are complaint against this type of coolant.
http://www.stevesnovasite.com/forums/archive/index.php/t-128547.html
In GM cars we replace Dex Cool with Prestone green coolant.
It's up to you. Ask before but if you decide to change the type of coolant then:
If your intention is to add coolant only, then you need:
Mix with
ANY COLOR ANTIFREEZE
ALL MAKES ALL MODELS
of cars and light trucks
add to ANY color antifreeze
PRESTONE
50/50
PREDILUTED ANTIFREEZE/COOLANT
EXTENDED LIFE up to 150000/mile 5 year protection.
DO NOT ADD WATER.

If your intention is to flush the RADIATOR (Cooling System), then you need:
Mix with
ANY COLOR ANTIFREEZE
ALL MAKES ALL MODELS
of cars and light trucks
add to ANY color antifrezze
PRESTONE
EXTENDED LIFE up to 150000/mile 5 year protection.
On the back you have to read directions:
Step 1 Drain. Step 2 Flush. Step 3 Fill.
Recommended to ad 30% to 50% volume, distilled water. If you flush the system and rinse with water you must add only 30% water to the antifreeze. There is more water trapped inside the engine compartment, because the thermostat is closed. Make sure to have a coolant density tester. When you finish one of 5 balls must sink, that indicates that you reached 50/50 strength. That means 50% Prestone and 50% Water, which will provide to your car a -34F degree FREEZE-UP Protection , and +265F degree BOILOVER protection.The next day,with a cooled engine open radiator cap, and test the strength of coolant. If not quite right, then siphon coolant from the radiator and add antifreeze, or distilled water as necessary.
Make sure to disposal the used coolant properly.

Nov 04, 2010 | 1997 Chevrolet Lumina

1 Answer

How to flush the radiator(cooling system) on 1995 chevy lumina


Wait until motor is cool. remove rad cap and loosen rad drain pet **** under rad. If you can't loosen it or cant find it, remove lower rad hose. let all antifreeze drain. Close pet **** or replace rad hose. Fill with water and rad flush(you can get the flush from an auto supply store or wallmart). Run for the recommended time on rad flush bottle. Wait for motor to cool. Then drain out water. Refill with 50% prestone and distiled water.

Aug 12, 2010 | 1995 Chevrolet Lumina

2 Answers

What are some things that would cause no heat


switch malfunction,blower not working,heating element burnt out.

Dec 07, 2009 | 2001 Chevrolet Blazer

1 Answer

Gm dex-cool vs prestone anti-freeze...


yes,your guy is right,a lot of gm cars have the int. gasket problem because of dex.

Feb 23, 2009 | 1995 Pontiac Grand Prix

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