4.6 engine problem?

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Sep 16, 2007 | 06:10 PM

02slammedgt

Thread Starter

Joined: Sep 2007

Posts: 6

From:

4.6 engine problem?

I have a 2002 gt with the 4.6. I ran 1st gear up to 6K rpm today and it bogged down to 4500 and was pouring blue smoke out my pipes. also, sometimes when im at an idle i smoke a whitesh smoke with a blue tint. my engine seems to run fine and starts up everytime. Anyone have ANY advice on this because im dumbfounded right now. I am running and offroad xpipe and flowmaster mufflers

Sep 16, 2007 | 06:18 PM

02 Ninja

5th Gear Member

Joined: Aug 2006

Posts: 3,075

From: Central Texas

RE: 4.6 engine problem?

Why did you run your car to 6k in first gearis my first question? Did it start smoking at idle after you put your o/r midpipe on?

Sep 16, 2007 | 06:19 PM

02slammedgt

Thread Starter

Joined: Sep 2007

Posts: 6

From:

RE: 4.6 engine problem?

No it didnt smoke. 6K is my red line

Sep 16, 2007 | 07:14 PM

kenv

4th Gear Member

Joined: Dec 2006

Posts: 1,420

From: pa

RE: 4.6 engine problem?

Blue smoke is almost always, oil burning. Black smoke is usualy fuel system problems ( unless of course your car is on fire

). White smoke is usualy coolant related.

Sep 16, 2007 | 07:47 PM

jitt

1st Gear Member

Joined: Oct 2006

Posts: 82

RE: 4.6 engine problem?

is it stock?...'cuz our motors peak at like 4500 rpm i think....no reason to spin that high at all in first gear your just lookin' to hurt something if you haven't already...forged or cast bottom end don't mean anything if you melt a ring and start burning oil....which might be the reason you bogged down from oil getting past the rings and contaminating the combustion cycle...hope that's not the case ,but i'm sorry if it is...blue smoke is a bad sign.

Sep 16, 2007 | 08:01 PM

dubarado

4th Gear Member

Joined: Sep 2006

Posts: 1,803

From: TAXO

RE: 4.6 engine problem?

Quote:

ORIGINAL: jitt

is it stock?...'cuz our motors peak at like 4500 rpm i think....no reason to spin that high at all in first gear your just lookin' to hurt something if you haven't already...forged or cast bottom end don't mean anything if you melt a ring and start burning oil....which might be the reason you bogged down from oil getting past the rings and contaminating the combustion cycle...hope that's not the case ,but i'm sorry if it is...blue smoke is a bad sign.

for TQ maybe... but HP peaks off just before redline at about 55-57...

Sep 16, 2007 | 08:13 PM

gknight

Joined: Jul 2007

Posts: 36

From:

RE: 4.6 engine problem?

I run it up to 5000 and 5500 almost daily, just not in first gear. Isthat a bad thing?
Not tryin to steal a thread, sorry.

Sep 16, 2007 | 08:15 PM

jitt

1st Gear Member

Joined: Oct 2006

Posts: 82

RE: 4.6 engine problem?

yeh sorry i meant to imply tq...[sm=pcwhack.gif]

Sep 16, 2007 | 08:22 PM

dubarado

4th Gear Member

Joined: Sep 2006

Posts: 1,803

From: TAXO

RE: 4.6 engine problem?

Quote:

ORIGINAL: gknight

I run it up to 5000 and 5500 almost daily, just not in first gear. Isthat a bad thing?
Not tryin to steal a thread, sorry.

think of it this way... imagine sprinting down each isle while food shopping when you can walk instead... you're putting on excessive strain for no reason...

the mustang can take it... but if you want longevity out of your car... try to not peak 3500 rpm... unless of course you have a reason to rip on it

Sep 17, 2007 | 11:07 AM

#10

MrChubs1

3rd Gear Member

Joined: Jun 2007

Posts: 717

From:

RE: 4.6 engine problem?

Not too sure what all the hype is abuot spinnin git up to 6K in 1st. You're fine.

I would bet (and hope for your sake) that you just sucke a bunch of oil in thru the PCV valve. Check it - it might be bad. It's fairly common.