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Author Topic: 2004 Mazda 6.. anything to look out for?  (Read 1170 times)
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Ash4390
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« on: December 05, 2008, 05:21:19 PM »

My girlfriend just got in an accident, car was written off yadda yadda yadda. Long story short, she has 14K and change to spend on a car. We've looked for the past couple weeks and with winter rolling around, she needs a car to get to and from work.

We found an 04 Mazda 6, 1.5 years left on on the CPO'd warranty from a GM dealership here in vancouver.

Details: Talked down from 15K --> 14K, 3.0LV6, 72000km, loaded to the tits (leather, heated seats, xenon, bose audio) etc, no accidents, great condition, new tires, brakes will need to be changed soon-ish (8-10 months probably)

I know mazda 3's inside and out, but I'm a bit foreign to the mazda 6, is there anything to watch out for? We took the car for a spin today, drives great, transmission shifts fine, suspension is great. Just need some piece of mind before she goes out and buys it.
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SamSamSam
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« Reply #1 on: December 05, 2008, 07:22:50 PM »

Should not have xenon..Maybe aftermarket HID kit. One thing for the v6 its ford engine. It may eat oil.Take a look  Cheesy

http://forum.mazda6club.com/index.php?showtopic=43344

Quote
Who:
This CRP is specifically for the Mazda 6s (V6) platform.

PCV
The PCV (Positive Crankcase Ventilation) Valve is a check valve that allows excess exhaust fumes in the crank case to re-enter the intake manifold and be re-combusted for emissions sake.


Problem:
If the valve breaks (its basically plastic), one of two things can happen,
http://forum.mazda6tech.com/viewtopic.php?p=36503#36503

1: The valve gets stuck close. Pressure builds up in the crankcase, eventually finding an outlet. This usually results in oil spraying back up into the intake tract, or blowing the dipstick out of its holder.

2: The valve gets stuck open. When vaccuum is applied (application of throttle), the intake air sucks the oil out of the crankcase using the pcv hose as a large straw.


Problem 2:
If option 2 occurs, a low oil condition can occur, which has an extremely high likelyhood of spinning a bearing. This can result in just a rod bearing replacement, or a complete bottom end rebuild. ($$$ and Very Bad)


Identifying The Problem:
Weekly oil checks will reveal a sudden increase in oil consumption. Sometimes blue smoke exiting the exhaust can be indicative of oil being sucked into the intake tract of the engine (and being burned in the combustion chamber).


Solutions:
There is no "concrete" solution at this time. The only thing that can be done is preventative maintance.

1. Check your oil level at least bi-weekly or weekly. It only takes a few seconds. Pop the hood before leaving in the morning (weekends are great for this) and just check the dipstick. Oil level should be between the top 0 and the ford logo on the dipstick.

2. Inspect the PCV valve every oil change (5-7.5k miles). Below is instructions on how to do so. Easiest method would be removing the hose from the rear of the manifold, and applying pressure/vaccuum to test for resistance.

3/ Purchase a second PCV valve and run it in-line with the current valve (on the same hose). This will provide a level of redundancy. If one of the valves should fail, the car will still be ok.


PCV VALVE INSPECTION [AJ]

user posted image

NOTE:
Removing the PCV valve might damage to the tab of the PCV valve and it will not be able to be reinstalled. Due to this, inspect the PCV valve with it installed on the vehicle.

1. Disconnect the negative battery cable.
2. Disconnect the PCV hose from the PCV valve.
3. Apply pressure to the PCV valve and verify that there is no airflow.
If there is airflow, replace the PCV valve.
4. Apply vacuum to the PCV valve and verify that there is airflow.
If there is no airflow, replace the PCV valve.

user posted image

#1 is the valve for anyone wondering.

Replacement valves are available from forum sponsors and online mazda parts sites for around 10-12 dollars.

Shouldn't be that much of a problem..Should create an account over there and research further. Good luck  Tongue

www.mazda6club.com

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07 Stormfront Gray Metallic Mazda 6
derrick
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« Reply #2 on: December 05, 2008, 11:55:24 PM »

Good to hear that at least she isn't hurt.

Resident Mazda6 expert, SSS, should have explained it well. Heavenclosed also has a 6, and hansolocujo has a MS6.
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BCMazda3 Goes to RevScene | 2005 Mazda3 Sport GT | 1992 Honda CB400 Super Four | artofpants
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« Reply #3 on: December 09, 2008, 01:28:48 AM »

http://www.revscene.net/forums/showthread.php?t=555426
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07 Stormfront Gray Metallic Mazda 6
m6inVan
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« Reply #4 on: December 12, 2008, 11:24:02 AM »

14K??? I would really get it lower as I don't think it's worth that much. Yeah it shouldn't have stock HID's since it wasn't an option til the 2gen. Does it have a sunroof?

I would try to get them down to 12k considering cars aren't moving right now
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wing_woo
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« Reply #5 on: February 11, 2009, 10:21:49 AM »

If it's an auto, then it should be ok.  I have a manual V6 and it's nothing but problems.  For the auto, like someone else said, just check your oil every week. 
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sanmaz3_84
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« Reply #6 on: February 11, 2009, 02:11:48 PM »


Woah thats a nice looking 6
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max_sensation
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« Reply #7 on: February 15, 2009, 12:25:25 AM »

my friends has a 6...and she hates it...well she has the v4 version...
she finds it bulky, slow and hard to maneuver around with...
not sure about ur gf...maybe she likes big cars...
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SamSamSam
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« Reply #8 on: February 15, 2009, 01:15:59 AM »


Details: Talked down from 15K --> 14K, 3.0LV6, 72000km, loaded to the tits (leather, heated seats, xenon, bose audio) etc, no accidents, great condition, new tires, brakes will need to be changed soon-ish (8-10 months probably)

I know mazda 3's inside and out, but I'm a bit foreign to the mazda 6, is there anything to watch out for? We took the car for a spin today, drives great, transmission shifts fine, suspension is great. Just need some piece of mind before she goes out and buys it.

 Wink but i admit though, the turning radius is very poor.
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07 Stormfront Gray Metallic Mazda 6
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