Question about 2005 Buick Rendezvous

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I know how to replace the thermostat, but how do I get to it on 2002 Rendezvous?

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These front wheel drives can be a challenge. You need to remove the accessories and associated belts out of the way first. You might need special tools that can be bought at the parts store but be very careful with the housing at the end of the top radiator hose which is where it is. There are electrical sensors for the electric fans. They break very easy. Just remember to put everything back in the same order that you took it off and clean up any anti-freeze cause animals love the taste but it will kill them if they drink it.

Posted on Jan 02, 2011


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Posted on Jan 02, 2017


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Thermostat replacement 2002 rendezvous

Thermostat Removal & Installation 3.4L & 3.5L Engine To Remove:
  1. Drain the coolant below the level of the thermostat.
  2. Remove the air cleaner and duct assembly.
  3. Remove the exhaust crossover pipe.
  4. Disconnect the radiator hose from the thermostat housing. gm_mv_ven_tstat.gif

  5. Remove the mounting bolts and remove the thermostat housing.
  6. Remove the housing gasket.
  7. Remove the thermostat.
  8. Clean the mating surfaces.
To Install:
  1. Install the thermostat on the engine. NOTE: Apply RTV sealer to the thermostat housing bolt threads.
  2. Install the thermostat housing and gasket with the mounting bolts. Tighten 18 ft-lb (25 Nm).
  3. Connect the radiator hose to the thermostat housing.
  4. Install the exhaust crossover pipe.
  5. Install the air cleaner and duct assembly.
  6. Fill the cooling system.
  7. Check the cooling system for leaks.
3.6L Engine To Remove:
  1. Remove the air cleaner.
  2. Remove the throttle body.
  3. Remove the heater pipes.
  4. Remove the coolant inlet pipe. Thermostat 3.6L gm-03-36-2447.gif

  5. Remove the thermostat mounting bolts and remove the thermostat.
  6. Clean the thermostat and heater pipe mating surfaces.
To Install:
  1. Place the thermostat in the housing with a new gasket.
  2. Install the thermostat and gasket on the engine with the mounting bolts. Tighten 89 in-lb (10 Nm).
  3. Install the coolant inlet pipe.
  4. Install the heater pipes.
  5. Install the throttle body.
  6. Install the air cleaner.
  7. Fill the cooling system and perform a leak test.
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Dec 19, 2010 | 2002 Buick Rendezvous

1 Answer

I have a 2004 Buick Rendezvous that runs hot. Replaced the thermostat, manifold gasket, radiator, had the fans checked and still runs hot. What else could be the problem?

cylinder head gaskets, or cracked cylinder heads, this is a bad problem with the 3400 engine, so bad that we keep a set of heads in stock at the shop.....SORRY

Nov 14, 2010 | 2002 Buick Rendezvous

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