Question about 2003 Pontiac Montana

1 Answer

Change thermostat on gm 3400 v6

Only 38,000 miles

Posted by on

  • jayeeegee Jan 24, 2009

    Thanks Steven. The dealer wants $500 for this and I thought it may be more reasonable that the GM instructions that required removal of the crossover manifold. Another comment adding to yours said "...with the right tools and small hands..." So I think I'll try it. John

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Governor:

    An expert whose answer got voted for 20 times.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 7 Answers

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

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Senser for turning the fun on


look around the thermostat area on the intake manifold. probably 75% of the time.
press the helpful button and follow me on fixya for more info

GM 3100 3400 3500 Engine Coolant Temp Sensor Replacement

Feb 01, 2016 | Cars & Trucks

3 Answers

Will a 2002 Pontiac 3100 interchange with a 2000 Buick 3800?


Not really.
The 3100 is a Chevy 2.8 and the 3800 is a Buick engine.
Most everything is different including exhaust manifolds, engine brackets, and wiring.

Dec 30, 2015 | Pontiac Cars & Trucks

2 Answers

Whats normally wrong when you get no heat on a 2000 Pontiac grand am v6 3400


Water level too low in the radiator.
Air in the cooling system.
Blocked heater core.
Stuck or disconnected shut-off valves.
Sticking thermostat.

Sep 28, 2015 | 2000 Pontiac Grand Am SE

4 Answers

99 pontiac montana overheaten already changed thermostat what is it?


you have a GM common problem and that is a bad intake manifold gasket. GM change the gaskets to plastic and they crank and leak causing over heating. here is a picture of one i took from a 2005 pon. bonneville with 74,000 miles on it2_12_2013_3_00_09_am.jpg

Feb 12, 2013 | 1999 Pontiac Montana

2 Answers

What type of coolant is recommended for 2000 pontiac montana?


GM recommend Dex-cool extended life coolant.
Even it's extended life coolant,I recommend you to change the thermostat and coolant every 2 years or 24,000 miles.

Mar 04, 2011 | 2000 Pontiac Montana

1 Answer

Changing the Thermostat


You didn't post your engine size so please choose the correct steps for your engine:

2.2L Engine


caddb8e.gif
The thermostat is located in the lower radiator hose on the 2.2L engine


16b9a57.gif

Remove the two retaining bolts for on the housing



f8015f6.gif
Separate the housing halves to access the thermostat



13b43d4.gif
Pull the thermostat out to remove it from the housing



4245340.gif
The thermostat has an O-ring which goes around the center



ee47070.gif
Thoroughly clean the mating surfaces of the thermostat housing


When adding coolant, it is important that you use GM Goodwrench DEX-COOL® (orange colored, silicate free) coolant meeting GM specifications. On these vehicles, if silicated coolant is added to the system, premature engine, heater core or radiator corrosion may result. In addition, the engine coolant will require change sooner; at 30,000 miles or 24 months.
  1. Disconnect the negative battery cable.
  2. Properly drain and recover the coolant until the level is below the thermostat.
  3. Unfasten the coolant outlet-to-inlet manifold attaching bolt and nut, then remove the outlet.
  4. Remove the thermostat. Clean the inlet manifold and outlet mating surfaces.
To install:
  1. Install a new O-ring onto the thermostat
  2. Place the thermostat in the inlet manifold.
  3. Attach the coolant outlet to the inlet manifold, using the bolt and nut. Tighten to 89 inch lbs. (10 Nm).
  4. Refill the engine cooling system.
  5. Connect the negative battery cable, then start the engine and check for coolant leaks.

May 23, 2010 | 1996 Chevrolet Cavalier

1 Answer

Replace thermostat on 97 cavalier?


GM Cavalier/Sunfire 1995-2000 Repair Guide

Thermostat - REMOVAL & INSTALLATION

2.2L Engine
(see Figures 1, 2, 3, 4, 5 and 6)


0900c1528003cd07.jpg Fig. 1: The thermostat is located in the lower radiator hose on the 2.2L engine


0900c1528003cd08.jpg Fig. 2: Remove the two retaining bolts for on the housing


0900c1528003cd09.jpg Fig. 3: Separate the housing halves to access the thermostat


0900c1528003cd0a.jpg Fig. 4: Pull the thermostat out to remove it from the housing


0900c1528003cd0b.jpg Fig. 5: The thermostat has an O-ring which goes around the center


0900c1528003cd0c.jpg Fig. 6: Thoroughly clean the mating surfaces of the thermostat housing
When adding coolant, it is important that you use GM Goodwrench DEX-COOL® (orange colored, silicate free) coolant meeting GM specifications. On these vehicles, if silicated coolant is added to the system, premature engine, heater core or radiator corrosion may result. In addition, the engine coolant will require change sooner; at 30,000 miles or 24 months.
  1. Disconnect the negative battery cable.
  2. Properly drain and recover the coolant until the level is below the thermostat.
  3. Unfasten the coolant outlet-to-inlet manifold attaching bolt and nut, then remove the outlet.
  4. Remove the thermostat. Clean the inlet manifold and outlet mating surfaces.

To install:
  1. Install a new O-ring onto the thermostat
  2. Place the thermostat in the inlet manifold.
  3. Attach the coolant outlet to the inlet manifold, using the bolt and nut. Tighten to 89 inch lbs. (10 Nm).
  4. Refill the engine cooling system.
  5. Connect the negative battery cable, then start the engine and check for coolant leaks.

Hope this helped (remember comment and rated this).

Apr 05, 2010 | 1997 Chevrolet Cavalier

1 Answer

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

2 Answers

Cold engine startup rattle


The problem might be fuel injectors...

Jun 22, 2008 | 2004 Chevrolet Monte Carlo

Not finding what you are looking for?
2003 Pontiac Montana Logo

2,386 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

63661 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21988 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...