Question about 1995 Pontiac Grand Prix

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Where is radiator drain cap 1998 pontiac bonneville

Need to Flush the radiator

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The drain **** is located at the base of the radiator on the drivers side. It looks like a butterfly nut.

Posted on Mar 28, 2009

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Check the bottom face of the radiator for a winged nut, usually down there somewhere

Posted on Feb 18, 2009

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Were is the radiator cap and drain plug in a 2005 Sunfire?


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How do you flush the cooling system


Open radiator drain & coolant cap

Drain coolant----close rad drain & refill

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What is proper method for flushing the radiator and engine in a 1999 Pontiac Montana?


1: Drain coolant system
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3: Pour coolant flush into your radiator, filling the rest with water
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How do i flush my radiator on my 1999 pontiac grand prix 3.1L engine?


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Is there a radiator drain plug on a 1998 Bonneville?


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How to remove radiator on 1992 pontiac bonneville se


Removal & Installation
  1. Disconnect the negative battery cable.
  2. Drain the engine coolant into a suitable container.
  3. If necessary for access, remove the air cleaner, mounting stud and duct.
  4. Remove the upper fan mounting bolts.
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On some vehicles, such as this 1998 model, remove the upper fan mounting bolts
  1. Unfasten the retainers, then remove the upper radiator panel.
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Unfasten the upper radiator panel fasteners, then remove the panel

CAUTION When draining the coolant, keep in mind that cats and dogs are attracted by 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. To avoid being burned, do NOT remove the thermostat housing cap while the engine is at normal operating temperature. The cooling system will release scalding fluid and steam under pressure if the cap is removed while the engine is still hot.


  1. Remove the cooling fans, as outlined later in this section.
  2. Disconnect the coolant reservoir hose from the radiator neck and the radiator hoses from the radiator.
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Unfasten the hose clamp and disconnect the coolant reservoir hose from the radiator neck

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Disconnect the remaining hoses from the radiator

  1. If equipped, unplug the cooling sending unit electrical connector.
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On some vehicles, you must unplug the coolant sending unit electrical connector
  1. If equipped, disconnect the engine oil cooler lines from the radiator.
  2. If equipped with an automatic transaxle, disconnect the transaxle cooler lines from the radiator side tank.
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Use a flare nut wrench to disconnect the upper transaxle oil cooler line

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1 Answer

Ord galaxy 1998 tdi 110 radiator over heating but


you need to flush the radiator out.
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Drain engine coolant from drain plug on radiator.
With the drain plug removed disconnect the highest hose connected to a radiator.
use an hosepipe and put it in place of the disconnected radiator pipe.
turn on the water to the hose pipe and let it flush out any sludge accumulated in the radiator. after a few minutes turn off water supply, reconnect radiator hose and drain plug and refil using recommended coolant mix for your galaxy (purchased at most autofactors and garages).
Also check your thermostat as if this is faulty it would stop the flow of coolant running around your engine.

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How do i unclog the radiator on a 1998 Saturn sl?


Your car's radiator and cooling system needs to be clean to be cool. As time goes on, your car's radiator builds solid deposits that can clog the cooling system. A quick, inexpensive radiator flush which can be purchased at any reputable store (Autozone, Nappa, etc.) can keep the system in shape. It's important to change your antifreeze seasonally. Before you start your radiator flush, make sure you have everything you need. There's nothing worse than draining your radiator only to realize that you need to drive to the auto store for something! Make sure to clear up clogs or you may soon clog up your thermostat, water pump causing your car to overheat and/or heater core leaving you cold in the winter.
What you'll need to perform a radiator flush:

  • Phillips head screwdriver or wrench (whichever your radiator drain requires)
  • Cloth rag
  • Radiator Flush solution
  • Coolant
  • Funnel
  • Used coolant receptacle
*Be sure to let your engine cool completely before you loosen or remove the radiator cap. Hot coolant can be painful!
I hope this helps and good luck. Please vote and leave a message.

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2 Answers

How do i reverse flush fiesta radiator


(With the engine cold) remove the radiator cap

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Block, or pinch the top radiator hose

First, flush from the top... pour water into the rad cap hole for a while and let it come out the bottom hose.

Then, run water from the bottom, and let it run out of the open cap.

Then flush it from the top again.

This should flush the rad, unless it is clogged pretty solid.

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