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How to replace thermostat for 3400 v6 - 2004 Pontiac Grand Am

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4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 7 Answers

SOURCE: change thermostat on gm 3400 v6

Drain coolant at the radiator drain. Remove air intake hose and MAF sensor assembly. remove throttle cable bracket and disconnect cable linkage. Remove throttle body bolts and disconnect coolant hoses to throttle body. Loosen heater hose pipe and remove heater hose from rear of pipe. Remove radiator hose from thermostat housing. Remove top thermostat housing bolt. Loosen and almost remove lower thermostat bolt. You will need to slide your wrench and hand under the exhaust crossover pipe to gain access. Loosen the bolt until you can remove the thermostat housing, it should be slotted to clear the bolt. Replace the thermostat and reassemble. Bleed cooling system using the two bleed screws (one on thermostat housing and the other on the passenger side of the engine where the heater hose pipe comes out above the water pump.

Posted on Jan 24, 2009

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peterrance19
  • 399 Answers

SOURCE: need to replace a thermostat on a pontiac 2002

hi its located directly under the throttel body my tip take the throttel body off this makes it easier getting to the inlet manifold top bolt is ok but the bottom bolt can be hard good luck if you find this imfo useful please rate it thanks

Posted on Nov 23, 2009

blueextc3221
  • 15935 Answers

SOURCE: Where is the thermostat located on a pontiac grand

3.4L Engine

  1. Drain the cooling system.
  2. Remove the air cleaner.
  3. Remove exhaust crossover pipe.
  4. Disconnect the surge tank line fitting from the coolant outlet.
  5. Remove the thermostat housing to intake manifold bolts.
  6. Remove the thermostat housing outlet and thermostat
  7. Clean the mating surfaces.

To install:
  1. Install the thermostat and housing outlet.
  2. Install the thermostat housing bolts. Tighten the thermostat housing bolts to 18 ft. lbs. (25 Nm).
  3. Install exhaust crossover pipe.
  4. Connect the surge tank line fitting to the coolant outlet. Tighten the fittings to 15 ft. lbs. (21 Nm).
  5. Install the air cleaner.
  6. Fill the cooling system.
  7. Inspect the system for leaks.

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Posted on Nov 23, 2009

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1 Answer

Where is the location of the thermostat on a 2005 pontiac grand am?


The thermostat is on the top hose you have to take the exhaust crossover pipe off to remove it with ease it should the average person at least two hours to change

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I have a 2005 impala it blows cold air only.the thermostate is set at the hottest setting.i dont think its the heater core because it does not overheat and its not leaking antifreeze.what could it be?


It's more than likely the thermostat. If you have a 3800 V6 this is a very quick and easy fix. It you have a 3400 engine, this can be a pretty frustrating job. The bolts that hold the thermostat housing on are very difficult to get at on a 3400 engine. Either way, the thermostat itself is only $10-$12.

If your thermostat is stuck open the engine coolant will constantly circulate and won't warm up to normal operating temperature. Since it isn't warming up, you won't have any heat inside either.

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the thermostat housing is located where the radiator hose connects to the engine. you'll need a flush kit to flush it out, it comes with instructions

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Need to replace a thermostat on a pontiac 2002 grand am v6 3400. Where is the thermostat located


hi its located directly under the throttel body my tip take the throttel body off this makes it easier getting to the inlet manifold top bolt is ok but the bottom bolt can be hard good luck if you find this imfo useful please rate it thanks

Nov 23, 2009 | 2002 Pontiac Grand Am

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How to change 2004 impala thermostat


the thermostat is on the rear of engine above the transmission 2 bolts hold its housing bolts are horizontal

Mar 20, 2009 | 2004 Chevrolet Impala

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Change thermostat on gm 3400 v6


Drain coolant at the radiator drain. Remove air intake hose and MAF sensor assembly. remove throttle cable bracket and disconnect cable linkage. Remove throttle body bolts and disconnect coolant hoses to throttle body. Loosen heater hose pipe and remove heater hose from rear of pipe. Remove radiator hose from thermostat housing. Remove top thermostat housing bolt. Loosen and almost remove lower thermostat bolt. You will need to slide your wrench and hand under the exhaust crossover pipe to gain access. Loosen the bolt until you can remove the thermostat housing, it should be slotted to clear the bolt. Replace the thermostat and reassemble. Bleed cooling system using the two bleed screws (one on thermostat housing and the other on the passenger side of the engine where the heater hose pipe comes out above the water pump.

Jan 23, 2009 | 2003 Pontiac Montana

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