Question about 1998 Pontiac Grand Am

1 Answer

I need to replace my thrmostat on my 1998 pontiac grand am 4cyc. 2.4 l engine .can you help me through it?

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Pontiac Master
  • 17,970 Answers

1998 Pontiac Grand Am 2.4L SFI DOHC 4cyl Repair Guide

Thermostat - Removal & Installation

CAUTION When draining the coolant, keep in mind that cats and dogs are attracted by the ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.

1994-98 MODELS

  1. Disconnect the negative battery cable.
  2. Properly drain and recover the coolant to a level below the thermostat.
  3. Unfasten the coolant inlet housing bolt, which is accessible through the exhaust manifold.
i need to replace my thrmostat on my 1998 pontiac - 21ec4e9.gif

Fig. View of the thermostat and related components-2.4L engine
  1. Raise and safely support the vehicle.
  2. Remove the radiator outlet pipe stud.
  3. Remove the second coolant inlet housing bolt, then remove the coolant inlet housing.
  4. Remove the thermostat, then clean the old gasket material from the mating surfaces.
To install:
  1. Position the thermostat in its correct location, then install the coolant inlet housing using a new gasket. Tighten the retaining bolt to 19 ft. lbs. (26 Nm) on the 2.3L and 10 ft. lbs. (14 Nm) on the 2.4L engine.
  2. Install the radiator outlet pipe stud.
  3. Carefully lower the vehicle.
  4. Install the coolant inlet housing bolt through the exhaust manifold.
  5. Properly fill the cooling system.
  6. Connect the negative battery cable, remove the radiator cap, then start the engine. Allow the engine to run with radiator cap removed, until the upper radiator hose becomes hot (thermostat open). With the engine idling, add coolant to the radiator until the level is up to the bottom of the filler neck.
  7. Install the radiator cap, making sure the arrows line up with the overflow tube.

I really hope help you with this (reember rated this help) Good luck.

Posted on Sep 28, 2009


1 Suggested Answer

  • 2 Answers

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

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.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Will the motor and tranny from a 1998 pontiac grand prix GT 2 door coupe 3.8L motor fit in a 1998 pontiac grand prix GTP supercharged 3.8l motor

everything will cross over but the engine and transmission in the gtp are suppose be heavier duty built

Mar 02, 2015 | Pontiac Cars & Trucks

1 Answer

2007 Pontiac Grand Prix heater dosent work

blend door actuator stuck on cold setting .... make sure ur not low on coolant to cause that will always mean no heat

Jan 04, 2014 | 2007 Pontiac Grand Prix

1 Answer

Engine Compartment Fuse Block

2 places you can buy this
dealer which is high price or junk yard
take a little time call california junk yards as you will get a better price
rockauto will have them at a great price

Nov 09, 2013 | 1998 Pontiac Grand Am

1 Answer

Where is the thermostat located for 2004 grand am se 6v is it hard to take out and put in. is it a electronic or electric thermostat also

The thrmostat is mechanical, follow the top radiator hose to the engine where it connects and that cover get unbolted its under it.

Apr 18, 2010 | 2004 Pontiac Grand Am

2 Answers

Need instructions to replace intake gasket on 99 Pontiac Grand Am

upper or lower e-mail me at bigwheels4now@yahoo .com

Feb 04, 2010 | 1998 Pontiac Grand Prix

2 Answers

Where is the blower motor located on a 1998 pontiac grand prix se?

under the dash below the glove box
if the blower motor is inop then
1st check for power on the purple wire at the blower motor
if it has power then you need a blower motor
if it does not have power then replace the resister
located beside the blower motor5-7 wire connector
you will see 2 goldish colored bolts they are 5.5mm remove them
now the TRICK
there is a 3rd bolt you can't see pull down then pull towards you
then when the resister is out LOOSEN THAT BOLT OFF
the resister is slotted slide the NEW RESISTER in the bolt you just loosened then tighten the other 2 leave the hiden bolt loose
hope this helps

Jan 06, 2010 | 1998 Pontiac Grand Prix

2 Answers

1998 pontiac grand prix starter

disconnect the negative battery terminal first then disconnect the positive treminal so there are no accidents, raise the car safely go underneath & remove the starter cover should be 3 10mm bolts holding the cover on then remove the 2 through starter bolts 15mm then disconnect the + battery cvable from starter then disconnect the solenoid wire should be a 7 mm bolt. good luck

Sep 10, 2009 | 1998 Pontiac Grand Prix

1 Answer

1998 Pontiac Bonnevilee SSE

Yes the engine will fit if the engines are the same. you will have to change some of the bracketry and definatley change the rear exhaust manifold as the exhaust flanges vary slghtly from model to model. The root engine is the same though.
good luck

Aug 07, 2008 | 1998 Pontiac Bonneville

Not finding what you are looking for?
1998 Pontiac Grand Am Logo

929 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts


Level 3 Expert

76673 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8531 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides