Question about 1997 Pontiac Grand Am

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I want to flush my heater core but can't find the proper hoses. I have a 97 pontiac grand am GT v6. Are the hoses under the power steering reservoir on the driver side? Or somewhere on the passengers side?

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The hoses are middle ways on fire wall you will see two hose ends side by side. I would like to know why your flushing the heater core. Is it a blockage, leak, or other things going on.

Posted on Nov 15, 2014

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Http://www.youtube.com/watch?v=VuQ078KHX0U

But you can expect it to leak after this manipulation.Be prepared to change tho whole heater core.

Posted on Nov 15, 2014

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Posted on Jan 02, 2017

frcs68
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SOURCE: Heater core and heater hoses

beig there, done that.
most likely is not the heater itself. most of the leak is from the water **** (heater control valve) located at the passager side of the heater. if you need instruction e-mail me at frcs68@hotmail.com, I have all the instruction and diagrams for the thing.

Posted on Sep 30, 2008

emissionwiz
  • 75051 Answers

SOURCE: i want to flush the heater core

Take off the hoses at the bulkhead/firewall that go to te heater core, use a garden hose and back flush the core by forcing water through the smaller of the 2 hose nipples, if the water runs right through then you have a heater air temp control door actuator problem

Posted on Dec 24, 2008

johnsmith992
  • 37 Answers

SOURCE: Replace heater core in Pontiac Grand Am GT 3.4l

ram a sharp chissel or pointed head centre punch through the core and prise it out .,than tap the new one in place ,,,there u go bobs ure uncle

Posted on Jan 29, 2009

  • 20 Answers

SOURCE: leaking water from front passenger side, under dashboard

It is either condensation water from the A/C unit that should go out a drain tube to the outside (only if A/C or Defrost is on) or a leaky heater core. If it is a heater core you can usually smell a coolant smell and the water will be warm and your windows will fog up inside. Heater core is more common. Joe ASE Master Tech

Posted on Mar 05, 2009

  • 6982 Answers

SOURCE: Pontiac Grand Prix Drivers side window won't go down

Most often on those the motors are shot. as soon as they are activated they overheat and slow down or stop. Only way I know of to repair is to replace them. You will need a manual to do this or do them one at a time so you can check how it goes back together by looking at other one. Motors are riveted in and need to be drilled to remove...use small bolts to re-attach.
I've seen motors online for about $30-40 each.

Posted on Aug 28, 2009

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1 Answer

How to flush a heater core in a pontiac grand prix 2002


If you have warm air on one side and cool on the other, you've a situation with the vent flaps. But to backflush the core, take both hoses off the core and run a garden hose to the outlet side going towards the water pump. This will flush it.

Aug 31, 2014 | 2002 Pontiac Grand Prix

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drain coolant system locate heater cores hoses going through firewall you need to buy the radiator flush kit at any auto parts stores. remove heater cores hoses from one end or buy extra long heater hoses same size as heater core hoses in vechicle at auto parts store use the flush kit when you flush through one of the heater core hoses let the other hose drain in a drain pan when you use home garden hose use low water pressure dont use garden hose to the max or you will rupture heater core. your best bet let radiator shop flush whole coolant system. because heater cores hoses are in a tight spot.make sure engine off if you just going to flush out heater core only .after flushing heater core good time to replace heater core hoses.if job too hard or complicated let radiator shop flush out radiator the engine block and heater core because if radiator stopped up or engine block stopped up the gunk and rust will reenter plug up heater core.if you tight on money you can flush out your own radiator.drain out radiator using large drain pan. remove top radiator hose and remove bottom radiator hoses connect to water pump.use garden hose with flush kit part with water pressure not too high put garden hose to top radiator hose run water until clear water run out bottom radiator hose in drain pan,the flush out engine block remove thermostat.if you had another spare thermostat housing with RTV SILICONE SEALANT THAT HAS SET UP INSTALL THERMOSTAT HOUSING BACK TO ENGINE WITHOUT THERMOSTAT FLUSH OUT THE ENGINE BLOCK, WHEN DONE INSTALL NEW THERMOSTAT THEN INSTALL ORIGINAL THERMOSTAT HOUSING WITH NEW ORING WHICH YOU BUY AT DEALERSHIP.IF ALL SOUND COMPLICATED LET RADIATOR SHOP FLUSH OUT COOLANT SYSTEM.

Nov 27, 2012 | 2003 Pontiac Grand Prix

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How to replace a power steering pressue hose for a grandam gt v6


dnt know what size is the bolt at the end of the line bythe gear box on my 2001 grand amgt replacing power steering pressure hose

Nov 01, 2010 | 2001 Pontiac Grand Am SE

1 Answer

Little or no heat.


you have two hoses leaving the firewall and going to a bypass just under the alternator they are your input and out to your heater core feel them both when the vehicle is at operating temp if ones hot and the other is cold backflush the heater core by hooking a hose to the cold side and force water through the heater core make sure to disconnect both hoses before flushing though

Oct 31, 2010 | 2005 Pontiac Grand Prix

1 Answer

Changed water pump. put new thermostat in changed radiator blowing out cold air but temp. guage never goes above 225


first check and see if you have flow through the heater core
start the car and get to operating temp. then grab the heater hoses they should both be hot if not then you have a flow problem
you can try and back flush the heater core or replace it
if the hoses are hot then there will be a problem with the temp door under the dash
hope this helps let me know if you need more info on the heater door

Jan 29, 2010 | 1999 Pontiac Grand Am GT

1 Answer

Needing to know how to flush a radiator on a 99 grand am gt v6 that has a reservoir?


remove the drain plug on the drivers side of the radiator use a bucket to catch the fluid start the car for about 1 minute then fill the reservoir so the fluid can clean th engine and radiator then close the drain plug on radiator and start the car let it run for 1 minute then tur it off remove the drain plug and close it refill the radiator an reservoir to proper level

Oct 28, 2009 | 1999 Pontiac Grand Am GT

2 Answers

Heater core-97 Pont. grand prix gt 6cy 3.8


You can unhook the hoses to the core and just hook them together with a flush fitting, or hose union.

Mar 28, 2009 | 1998 Pontiac Grand Am

1 Answer

I want to flush the heater core


Take off the hoses at the bulkhead/firewall that go to te heater core, use a garden hose and back flush the core by forcing water through the smaller of the 2 hose nipples, if the water runs right through then you have a heater air temp control door actuator problem

Dec 24, 2008 | 2005 Pontiac Grand Prix

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