Question about Pontiac Grand Am

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Remove/replace radiator--1997 pontiac grand am se

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  • michelle cherry Aug 28, 2010

    got it out-- caught up on fusebox.... transmission fluid leaking on pssngr side somewhere....

  • michelle cherry Aug 28, 2010

    new radiator has alumnin strips on top n bttm seem wider than orgnl... (bought frm

  • michelle cherry Aug 28, 2010

    big problems trying to f@@k with a goofy style hose clamp on bttm end hose.

  • michelle cherry Aug 28, 2010

    mess.. cant begin to get clamp on out going hose. sheesh.

  • michelle cherry Aug 28, 2010

    crazy mess-- dumb blonde tryin to save some bucks------ sheesh! two hoses, skinny- one with red knob,other with green-mrkd evp.... on top or under bottom fat direct hose?(out going water direct from radtr)

  • michelle cherry Aug 28, 2010

    any help was great....


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Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.
A cross-flow radiator is used on most models. The radiators used on automatic transaxle models are equipped with oil coolers with inlet and outlet fittings for transmission fluid circulation. An aluminum-plastic radiator can be identified by the black plastic side tanks and aluminum radiator.

  1. Disconnect the negative battery cable.
  2. Drain and recycle the engine coolant.
  3. If necessary for access to the radiator, remove the air intake duct assembly or air cleaner assembly.
  4. On automatic transaxles, disconnect and plug the upper oil cooler line.
  5. Disconnect the engine strut brace at the radiator, loosen the engine side bolt and swing aside, if equipped.
  6. Matchmark and remove the hood latch from the radiator support.
  7. Detach the upper hose and coolant reserve tank hose from the radiator.
  8. Disconnect the forward light harness and fan wiring. Remove the electric cooling fan. On some models this may not be able to be removed unless the front end of the vehicle is raised and supported.
  9. Raise and safely support the vehicle.
  10. Remove the engine cooling fan if not yet done.
  11. If equipped, remove the splash panel below the radiator outlet hose. Detach the lower hose from the radiator.
  12. If equipped, disconnect and plug the lower oil cooler line.
  13. Carefully lower the vehicle.
  14. If equipped with air conditioning, remove the radiator to condenser bolts. Unbolt the refrigerant line clamp. Do not disconnect the lines.
  15. Remove the mounting bolts and clamp, then the shroud (if equipped) and carefully lift the radiator out of the engine compartment.
To install:

  1. Lower the radiator into position.
  2. Install the mounting clamps and bolts, including those associated with air conditioning parts.
  3. Raise and safely support the vehicle.
  4. If equipped, attach the automatic transaxle cooler lines.
  5. Connect the lower hose(s) and attach the splash shield if equipped.

If the engine cooling fan was removed while the vehicle was in the air, install the assembly and attach all electrical wiring.
  1. Carefully lower the vehicle.
  2. If not already done, install the electric cooling fan, then attach the electrical connector(s).
  3. Connect the upper hose and coolant reserve tank hose.
  4. Install the hood latch and strut brace.
  5. Fill the system with coolant.
  6. Connect the negative battery cable, then start the engine. Run the vehicle until the thermostat opens, fill the radiator and recovery tank to their correct levels, then check the automatic transaxle fluid level.
  7. Turn the engine OFF , then once the vehicle has cooled, recheck the coolant level.

Posted on Aug 28, 2010

  • 3 more comments 
  • GetMeOttaHere Aug 28, 2010

    You have an automatic and the lines running to the radiator do not have the ends plugged up to prevent fluid from coming out. Not a big deal, just replenish the trans fluid level when you complete the job.

  • GetMeOttaHere Aug 28, 2010

    I'm not surprised at all. You may have to modify the fit, I've done this many many times. These Rads are built oversea's for the most part, and exact fit is not always perfect, that is unless you actually received an incorrect part number?

  • michelle cherry Aug 28, 2010

    crazy hose clamp--- tab one sd--- tab wth hole on other--- bad angle undr altnatr. any idea how to open crazy clamp?

  • GetMeOttaHere Aug 28, 2010

    Use a pair of needle nose pliers and rotate the clamp to an accessible access point. I know exactly what you mean, but it is difficult to explain via email chat.

  • GetMeOttaHere Aug 28, 2010

    The hose's could only go one way, there should be a set turn or flex to the hose from it's prior fixed position.


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I read in the manual that you get to take it to the dealer and they will clear this wonderful code that activates the wonderful light on the dash. the redneck in me advises the use of black electrical tape over the wonderful light . that is how i fixed mine . I got the same year grand prix

Posted on Apr 17, 2010

  • 1 Answer

SOURCE: 1997 pontiac grand prix se has code po401. I

the egr value tubing also gets corroded with carbon. take tube off and use a wire brush to clean tubing. i talked with a mechanic and he said he has never seen an egr valve fail. most if not all egr problems are due to carbon build up in the egr tube. clean egr tube interior.

Posted on Jul 14, 2009

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