Could it be the PVC problem or something else? - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum

KWhale · 04-17-2012, 12:53 PM

Hey everyone,

2003 6i with only 64,000 miles. I can't believe it is having any problems but I checked my oil a few days ago and there was hardly any oil on the dipstick. Changed it around 62,000 (actually about 4 to 5 months ago) and I know I should have checked it more often but it always slips my mind. Put 2 quarts in and showed it was full on the dipstick. I also noticed my mileage has gone down because I am getting less miles per tank than I usually get. Filter is clean and no smoke. Is this the PCV issue or could it be something else? I also noticed over the past few months if I don't let the car warm up long enough in the morning there is some surging (like tapping the gas repetitively) when I go a little uphill (slight hill close to my house). After that there are no problems and if I let it warm up for long enough it doesn't happen.

Can anyone offer some advice to both of the problems? I am almost certain that the oil problem is the PCV issue but I wanted some more opinions.

Thanks!

I3 1 G I> A I> I> Y · 04-17-2012, 08:28 PM

im having the same problem in regards to oil with my 6i as well. ive had the pcv valve changed, and the engine basically torn apart..twice.. including pcv valve replacement, and mechanics cannot find the problem. i read somewhere on here that some of our engines are "duds" when it comes to oil consumption.

you might want to check your spark plugs, they may be dirty.

austinairport · 04-17-2012, 10:13 PM

My engine has 148,000 miles, no smoke. It doesn't burn oil either. These aren't "duds" .... Dodge's are duds.

07Mazda6H · 04-17-2012, 10:45 PM

Define "duds'...proud owner of 2 dodge's here.....lol

I3 1 G I> A I> I> Y · 04-24-2012, 06:00 PM

Quote:

Originally Posted by austinairport

My engine has 148,000 miles, no smoke. It doesn't burn oil either. These aren't "duds" .... Dodge's are duds.

The keyword was "SOME". If i go through a qt of oil in 200 miles, its a dud..

austinairport · 04-25-2012, 01:30 AM

Do you have an oil leak somewhere? Bad rings? What is causing THAT amount of oil loss..

Nihilus · 04-26-2012, 06:19 PM

Quote:

Originally Posted by austinairport

Do you have an oil leak somewhere? Bad rings? What is causing THAT amount of oil loss..

I would be interested in this as well. Drove 1000 miles since last oil change and I'm already almost down to the minimum line on my dip stick.

05 Mazda 6i with 132k miles. Burns oil like no other. Lots of residue on my exhaust tips, but no smoke on start up or while running.

Any help would be appreciated, I'm thinking about hitting up a dealer this weekend to have it checked but I would like to know whats going on first.

austinairport · 04-26-2012, 10:52 PM

Quote:

Originally Posted by Nihilus

I would be interested in this as well. Drove 1000 miles since last oil change and I'm already almost down to the minimum line on my dip stick.

05 Mazda 6i with 132k miles. Burns oil like no other. Lots of residue on my exhaust tips, but no smoke on start up or while running.

Any help would be appreciated, I'm thinking about hitting up a dealer this weekend to have it checked but I would like to know whats going on first.

Damn, that's crazy. I'm at 148,000 and my car drink's very little oil between oil changes.

Nihilus · 04-27-2012, 05:30 PM

Quote:

Originally Posted by austinairport

Damn, that's crazy. I'm at 148,000 and my car drink's very little oil between oil changes.

Had a talk with the maintenance guys at work today. One mentioned that PCV is a possibility but also could be several other things like a block in the catalytic converter. He suggested I cut off the cat and gut it, then weld it back on or get some clamps.

austinairport · 04-27-2012, 05:46 PM

I had a clogged cat when I first got my car. It caused quite a bit of backpressure. When I switched to a high flow cat, the car made a lot more power.

I would check the PCV first.

04-17-2012, 12:53 PM	#1 (permalink)
KWhale Registered User Join Date: Feb 2011 Location: Peoria, IL Posts: 57 Thanks: 0 Thanked 3 Times in 3 Posts Groans: 0 Groaned at 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 1 Post(s) iTrader: 0 reviews	Could it be the PVC problem or something else? Hey everyone, 2003 6i with only 64,000 miles. I can't believe it is having any problems but I checked my oil a few days ago and there was hardly any oil on the dipstick. Changed it around 62,000 (actually about 4 to 5 months ago) and I know I should have checked it more often but it always slips my mind. Put 2 quarts in and showed it was full on the dipstick. I also noticed my mileage has gone down because I am getting less miles per tank than I usually get. Filter is clean and no smoke. Is this the PCV issue or could it be something else? I also noticed over the past few months if I don't let the car warm up long enough in the morning there is some surging (like tapping the gas repetitively) when I go a little uphill (slight hill close to my house). After that there are no problems and if I let it warm up for long enough it doesn't happen. Can anyone offer some advice to both of the problems? I am almost certain that the oil problem is the PCV issue but I wanted some more opinions. Thanks! __________________ 2003 Mazda 6i MTX Glacier Silver Last edited by KWhale; 04-18-2012 at 09:34 AM. Reason: PCV not PVC

04-17-2012, 10:13 PM	#3 (permalink)
austinairport Registered User Join Date: Feb 2010 Location: CenTex Posts: 455 Thanks: 21 Thanked 53 Times in 45 Posts Groans: 42 Groaned at 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 4 Post(s) iTrader: 0 reviews	My engine has 148,000 miles, no smoke. It doesn't burn oil either. These aren't "duds" .... Dodge's are duds. __________________ 2004 Mazda 6i ATX -Ksport - Magnaflow - Motegi -

04-17-2012, 10:45 PM	#4 (permalink)
07Mazda6H Track Racer Join Date: Mar 2010 Location: South Jersey Posts: 307 Thanks: 33 Thanked 32 Times in 30 Posts Groans: 0 Groaned at 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 16 Post(s) iTrader: 0 reviews	Define "duds'...proud owner of 2 dodge's here.....lol __________________ Heather & Jeff 2007 Mazda6i / Drk Cherry Metallic / 6k HID's /Ventvisors / Smoked front markers / Tinted rear reflectors / '12 Mazda3 antenna -- Traded in ..8/20/12. </3 2013 Mazda CX-5 : Sky Blue - Moonroof/Bose package - Technology package

04-25-2012, 01:30 AM	#6 (permalink)
austinairport Registered User Join Date: Feb 2010 Location: CenTex Posts: 455 Thanks: 21 Thanked 53 Times in 45 Posts Groans: 42 Groaned at 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 4 Post(s) iTrader: 0 reviews	Do you have an oil leak somewhere? Bad rings? What is causing THAT amount of oil loss.. __________________ 2004 Mazda 6i ATX -Ksport - Magnaflow - Motegi -

04-27-2012, 05:46 PM	#10 (permalink)
austinairport Registered User Join Date: Feb 2010 Location: CenTex Posts: 455 Thanks: 21 Thanked 53 Times in 45 Posts Groans: 42 Groaned at 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 4 Post(s) iTrader: 0 reviews	I had a clogged cat when I first got my car. It caused quite a bit of backpressure. When I switched to a high flow cat, the car made a lot more power. I would check the PCV first. __________________ 2004 Mazda 6i ATX -Ksport - Magnaflow - Motegi -

04-17-2012, 08:28 PM	#2 (permalink)
I3 1 G I> A I> I> Y Learners License Join Date: Aug 2010 Posts: 20 Thanks: 0 Thanked 1 Time in 1 Post Groans: 0 Groaned at 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 2 Post(s) iTrader: 0 reviews	im having the same problem in regards to oil with my 6i as well. ive had the pcv valve changed, and the engine basically torn apart..twice.. including pcv valve replacement, and mechanics cannot find the problem. i read somewhere on here that some of our engines are "duds" when it comes to oil consumption. you might want to check your spark plugs, they may be dirty.

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