QuestionThank you for your prompt response. I am looking for a bit more detail, however. In connection with this job, is it prudent to replace the timing belt/chain, tensioning arm, fan clutch, belts, hoses or other items? What about maintaining proper positioning of the timing sprockets? Does the radiator, ac condenser, grill, ac compressor, alternator, power steering pump, wheels or fenders have to be removed for access? Are there other items that I should be aware of before making the decision whether to seek a professional or do it myself? I know this request may be considered more than "one question," but it is concomitant with how to replace a water pump. Again, your comments will be appreciated.
Regards,
Jim
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Followup To
Question -
My daughter has a 1994 Nissan Pathfinder; it's water pump has locked up. What is involved in replacing it; and any other components that could/should be replaced at the same time? My son has a ME from UT (BCS Champs!) and a Hot Rod 55 Chevy that he built himself; he has some concern about the apparent complexity of the task. Your comments will be appreciated. The Pathfinder has 150k miles on it and seems to be in good condition otherwise. It is a V6 with the number 3000 on the engine and the letters XE on the body. Additionally, what do you think, ball park, a fair price would be for the labor involved?
Regards,
Jim
Answer -
Jim,
If you have metric tools the job is easy. Most of the job uses a ten millimeter wrench and socket. You basically take the fan off and the accessories to get to the pump. I know it looks complex but it is not. This is probably the best engine to come out of Japan when it comes to ease of maintenance. It should cost about $180 for labor if you do not want to do it. Do not backflush the block as the excess pressure takes out the heater core. Use demineralized water and antifreeze in a 50/50 mix. Use sensor safe silicone sealant when you do the job and replace the radiator cap and thermostat.
AnswerJim,
Nothing like the radiator or fenders need to come off. take the upper fan shround off and look down and you will see the bolts that hold the fan on. Take them off and take the belts off to get access to the waterpump bolts. I think the alternator bracket has to come loose to get to one of the bolts. This would be a good time to replace the belts and hoses while you had it apart. If the timing belt needs replacement it would be a good time to do it. But, if you had it done at 90 K miles it is not time to do it until 180 K miles. That is your choice. I would get a Chilton or Haynes manual to help you with specifics. But, this is a really easy kob if you have metric tools.
